CN109490766A - The relay test method of light storage mixing inverter - Google Patents
The relay test method of light storage mixing inverter Download PDFInfo
- Publication number
- CN109490766A CN109490766A CN201811190267.6A CN201811190267A CN109490766A CN 109490766 A CN109490766 A CN 109490766A CN 201811190267 A CN201811190267 A CN 201811190267A CN 109490766 A CN109490766 A CN 109490766A
- Authority
- CN
- China
- Prior art keywords
- relay
- voltage
- comparison result
- detection voltage
- normal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
- G01R31/3277—Testing of circuit interrupters, switches or circuit-breakers of low voltage devices, e.g. domestic or industrial devices, such as motor protections, relays, rotation switches
- G01R31/3278—Testing of circuit interrupters, switches or circuit-breakers of low voltage devices, e.g. domestic or industrial devices, such as motor protections, relays, rotation switches of relays, solenoids or reed switches
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
This application provides a kind of relay test methods that light stores up mixing inverter, the voltage between the second relay and the 4th relay including detecting alternating current net side.Judge whether the second relay and the 4th relay are normal according to the voltage detected.If the second relay and the 4th relay are normal, the voltage between the first relay of inverter side and third relay is detected, obtains the second detection voltage.Detect voltage judges whether the first relay and third relay are normal according to second.If the first relay and third relay are normal, the voltage between the 5th relay of load-side and the 6th relay is detected, obtains third detection voltage.Judge whether the 5th relay and the 6th relay are normal according to third detection voltage.The application is successively detected by each relay to alternating current net side, inverter side and load-side, and the working condition of each relay can be accurately detected according to corresponding judgment criteria, improves reliability.
Description
Technical field
This application involves power electronics detection technique fields, and the relay test side of mixing inverter is stored up more particularly to light
Method.
Background technique
The relay failure Comparison between detecting methods of the common photovoltaic combining inverter of industry are abundant at present, but are specific to
The rarely seen publicity of method of light storage mixing inverter.Light storage mixing inverter is different from common photovoltaic DC-to-AC converter.It is i.e. defeated in inversion
Outlet increases load, also just increases a group relay again.Whole device has 3 groups of 6 relays in this way, is combined with each other hair
A possibility that raw failure, is many compared to increasing, existing detection method and relay be attracted strategy easily cause error detection or
Person's leak detection.
Summary of the invention
Based on this, it is necessary to be attracted strategy for existing detection method and relay and be easy to cause error detection or missing inspection
The problem of survey, provides a kind of relay test method of light storage mixing inverter.
A kind of relay test method of light storage mixing inverter, is applied to include inverter, AC network, load, crystalline substance
The mixing of brake tube, the first relay, the second relay, third relay, the 4th relay, the 5th relay and the 6th relay
Inverter circuit, first relay, the second relay are connected in series between the inverter and the AC network
Firewire, the third relay, the 4th relay are connected in series in the zero curve between the inverter and the AC network, institute
State the firewire that the 5th relay is electrically connected between first relay and second relay and the load
Between, the 6th relay is electrically connected to the zero curve between the third relay and the 4th relay and described negative
Between load, the thyristor is connected in parallel in the 5th relay, which comprises
The voltage between second relay of the alternating current net side and the 4th relay is detected, obtains first
Voltage is detected, judges whether second relay and the 4th relay are normal according to the first detection voltage；
If second relay and the 4th relay are normal, first relay of the inverter side is detected
Voltage between device and the third relay obtains the second detection voltage, judges described the according to the second detection voltage
Whether one relay and the third relay are normal；
If first relay and the third relay are normal, the 5th relay of the load-side is detected
With the voltage between the 6th relay, third detection voltage is obtained, judges the described 5th according to third detection voltage
Whether relay and the 6th relay are normal, so that it is determined that the working condition of the mixing inverter circuit.
In one of the embodiments, second relay of the detection alternating current net side with the described 4th after
Voltage between electric appliance obtains the first detection voltage, judges second relay and described according to the first detection voltage
The whether normal step of 4th relay includes:
The voltage between second relay of the alternating current net side and the 4th relay is detected, obtains first
Detect voltage；
The first detection voltage is compared with default floating voltage, obtains the first comparison result；
Judge whether second relay and the 4th relay are normal according to first comparison result.
It is described in one of the embodiments, to judge second relay and described according to first comparison result
The whether normal step of four relays includes:
It is attracted the 4th relay, disconnects second relay, if first comparison result is less than or equal to the
One preset threshold then judges that there are short troubles for the 4th relay；
It is attracted second relay and the 4th relay, is preset if first comparison result is greater than described first
Threshold value then judges that there are open circuit faults for second relay；
If first comparison result is less than or equal to first preset threshold, second relay and institute are judged
It is normal to state the 4th relay.
If second relay and the 4th relay are normal in one of the embodiments, institute is detected
The voltage between first relay of inverter side and the third relay is stated, the second detection voltage is obtained, according to institute
State that the second detection voltage judges first relay and the whether normal step of the third relay includes:
If second relay and the 4th relay are normal, first relay of the inverter side is detected
Voltage between device and the third relay obtains the second detection voltage；
The second detection voltage is compared with the first detection voltage, obtains the second comparison result；
Judge whether first relay and the third relay are normal according to second comparison result.
It is described in one of the embodiments, to judge first relay and described according to second comparison result
The whether normal step of three relays includes:
It is attracted second relay, the third relay and the 4th relay, disconnects first relay,
If second comparison result is less than or equal to the second preset threshold, judge that there are short troubles for first relay；
It is attracted first relay, and disconnects the third relay, if second comparison result is less than or equal to
Second preset threshold then judges that there are short troubles for the third relay；
It is attracted first relay, second relay, the third relay and the 4th relay, if institute
The second comparison result is stated less than or equal to second preset threshold, then judges first relay and the third relay
It is normal；
If second comparison result is greater than second preset threshold, first relay and/or described is judged
There are open circuit faults for third relay and/or the 4th relay.
If second comparison result is greater than second preset threshold in one of the embodiments, judge
There are the step of open circuit fault to include: for first relay and/or the third relay and/or the 4th relay
If second comparison result is greater than second preset threshold, and the default floating voltage is less than or equal to the
Three preset thresholds, then judging the 4th relay, there are open circuit faults, and first relay and the third relay are just
Often；
If second comparison result is greater than second preset threshold, and the default floating voltage is greater than the third
Preset threshold then judges that the 4th relay is normal, and first relay and/or the third relay have open circuit event
Barrier.
If second comparison result is greater than second preset threshold in one of the embodiments, judge
First relay and/or the third relay and/or the 4th relay are gone back later the step of there are open circuit faults
Include:
The 4th relay is disconnected, if the default floating voltage is greater than the 4th preset threshold, judges the described 4th
Relay short circuit judges the 4th relay if the default floating voltage is less than or equal to the 4th preset threshold
Normally.
If first relay and the third relay are normal in one of the embodiments, institute is detected
The voltage between the 5th relay of load-side and the 6th relay is stated, third detection voltage is obtained, according to described in
Third detection voltage judges whether the 5th relay and the 6th relay are normal, so that it is determined that the mixing inverter
The step of working condition of circuit includes:
If first relay and the third relay are normal, the 5th relay of the load-side is detected
With the voltage between the 6th relay, third detection voltage is obtained；
Third detection voltage is compared with the first detection voltage, obtains third comparison result；
Judge whether the 5th relay and the 6th relay are normal according to the third comparison result, so that it is determined that institute
State the working condition of mixing inverter circuit.
In one of the embodiments, it is described according to the third comparison result judge the 5th relay and the described 6th after
Whether electric appliance is normal, so that it is determined that the step of working condition of the mixing inverter circuit includes:
It is attracted first relay, second relay, the third relay, the 4th relay and described
5th relay disconnects the 6th relay, if the third comparison result is less than or equal to the 5th preset threshold, judges
There are short troubles for 6th relay；
The 5th relay is disconnected, the 6th relay is attracted, if the third comparison result is less than or equal to institute
The 5th preset threshold is stated, then judges that there are short troubles for the 5th relay；
After the thyristor is connected, it is attracted the 5th relay, if the third comparison result is greater than the described 5th in advance
If threshold value, then judge that there are open circuit faults for the 6th relay；
If third comparison result is less than or equal to the 5th preset threshold, the thyristor is disconnected, if described at this time the
Three comparison results are greater than the 5th preset threshold, then judge that there are open circuit faults for the 5th relay.
In one of the embodiments, second relay of the detection alternating current net side with the described 4th after
Voltage between electric appliance obtains the first detection voltage, judges second relay and described according to the first detection voltage
After the whether normal step of 4th relay further include:
If second relay and/or the 4th relay stop detecting there are failure.
If second relay and the 4th relay are normal in one of the embodiments, institute is detected
The voltage between first relay of inverter side and the third relay is stated, the second detection voltage is obtained, according to institute
It states after the second detection voltage judges first relay and the whether normal step of the third relay further include:
If first relay and/or the third relay stop detecting there are failure.
Compared with prior art, the relay test method of above-mentioned light storage mixing inverter, including the friendship is detected first
Voltage between second relay and the 4th relay of galvanic electricity net side, obtains the first detection voltage.Then foundation
The first detection voltage judges whether second relay and the 4th relay are normal.Secondly, if described second after
Electric appliance and the 4th relay are normal, then detect the inverter side first relay and the third relay it
Between voltage, obtain the second detection voltage.Then first relay and described the are judged according to the second detection voltage
Whether three relays are normal.Again, if first relay and the third relay are normal, the load-side is detected
Voltage between 5th relay and the 6th relay obtains third detection voltage.Finally examined according to the third
Survey voltage judges whether the 5th relay and the 6th relay are normal, so that it is determined that the mixing inverter circuit
Working condition.
The application by each relay to the alternating current net side, the inverter side and the load-side successively
It is detected, while can accurately detect the working condition of each relay according to corresponding judgment criteria.There is no error detection or
Person's leak detection phenomenon, enables the reliability of whole device to be guaranteed.
Detailed description of the invention
Fig. 1 is the flow chart of the relay test method for the light storage mixing inverter that one embodiment of the application provides；
Fig. 2 is the structural block diagram for the mixing inverter circuit that one embodiment of the application provides；
Fig. 3 is the structural schematic diagram for the mixing inverter circuit that one embodiment of the application provides.
10 mixing inverter circuits
100 inverters
200 AC networks
300 loads
400 thyristors
410 first relays
420 second relays
430 third relays
440 the 4th relays
450 the 5th relays
460 the 6th relays
510 solar panels
520 booster circuits
530 batteries
540 DC/DC circuits
550 first capacitors
560 first inductance
570 second inductance
580 second capacitors
Specific embodiment
In order to make the above objects, features, and advantages of the present application more apparent, with reference to the accompanying drawing to the application
Specific embodiment be described in detail.Many details are explained in the following description in order to fully understand this Shen
Please.But the application can be implemented with being much different from other way described herein, those skilled in the art can be not
Similar improvement is done in the case where violating the application intension, therefore the application is not limited by following public specific implementation.
It should be noted that it can directly on the other element when element is referred to as " being fixed on " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.
Unless otherwise defined, all technical and scientific terms used herein and the technical field for belonging to the application
The normally understood meaning of technical staff is identical.The term used in the description of the present application is intended merely to description tool herein
The purpose of the embodiment of body, it is not intended that in limitation the application.Term " and or " used herein includes one or more phases
Any and all combinations of the listed item of pass.
Referring to Figure 1 and Fig. 2, one embodiment of the application provide a kind of relay test method of light storage mixing inverter,
Applied to including inverter 100, AC network 200, load 300, thyristor 400, the first relay 410, the second relay
420, the mixing inverter circuit of third relay 430, the 4th relay 440, the 5th relay 450 and the 6th relay 460
10.First relay 410, the second relay 420 be connected in series in the inverter 100 and the AC network 200 it
Between firewire 210.The third relay 430, the 4th relay 440 are connected in series in the inverter 100 and exchange with described
Zero curve 220 between power grid 200.
5th relay 450 is electrically connected to the institute between first relay 410 and second relay 420
It states between firewire 210 and the load 300.6th relay 460 is electrically connected to the third relay 430 and described the
Between the zero curve 220 and the load 300 between four relays 440.The thyristor 400 is connected in parallel in the described 5th
Relay 450.The described method includes:
S102: it detects between second relay 420 and the 4th relay 440 of 200 side of AC network
Voltage, obtain the first detection voltage, according to it is described first detection voltage judge second relay 420 and the described 4th after
Whether electric appliance 440 is normal.
It is appreciated that second relay 420 and the 4th relay 440 of detection 200 side of AC network
Between voltage detection mode it is unlimited, as long as it can ensure that obtain it is described first detection voltage.In one embodiment,
It can be by between second relay 420 and the 4th relay 440 of 200 side of AC network described in multimeter detection
Voltage.In one embodiment, can also be detected by oscillograph second relay 420 of 200 side of AC network with
Voltage between 4th relay 440.Voltage tool between second relay 420 and the 4th relay 440
The detection mode of body can be selected according to actual needs.
Judge whether second relay 420 and the 4th relay 440 are normal according to the first detection voltage.
Specifically, can be by controlling the actuation of second relay 420 or disconnecting actuation with the 4th relay 440 or disconnected
It opens and the first detection voltage judges whether second relay 420 and the 4th relay 440 are normal.
In one embodiment, second relay 420 and the 4th relay 440 are attracted.If first inspection
Survey voltage it is equal within the scope of the first sampling error with target voltage, then determine second relay 420 and the described 4th after
Electric appliance 440 is normal.In one embodiment, if the first detection voltage and the target voltage are in first sampling error
It is unequal in range, then determine that second relay 420 and/or the 4th relay 440 are abnormal.In one embodiment
In, the target voltage refers to electricity between the two when second relay 420 and normal the 4th relay 440
Pressure.The numerical value of first sampling error does not do specific restriction, can be set according to actual needs, for example, be set as 5V or
10V etc..
In one embodiment, it is attracted second relay 420, disconnects described in the 4th relay 440 or actuation
4th relay 440 disconnects second relay 420.If the first detection voltage and the target voltage are described the
It is equal within the scope of one sampling error, then determine that second relay 420 and/or the 4th relay 440 are abnormal.One
In a embodiment, if second relay 420 and/or the 4th relay 440 are abnormal, stop detecting.
S104: if second relay 420 and the 4th relay 440 are normal, 100 side of inverter is detected
First relay 410 and the third relay 430 between voltage, the second detection voltage is obtained, according to described
Two detection voltages judge whether first relay 410 and the third relay 430 are normal.
It is appreciated that first relay 410 and the third relay 430 of detection 100 side of inverter it
Between voltage detection mode it is unlimited, as long as it can ensure that obtain it is described second detection voltage.In one embodiment, may be used
Pass through the electricity between first relay 410 and the third relay 430 of 100 side of inverter described in multimeter detection
Pressure.In one embodiment, can also be detected by oscillograph first relay 410 of 100 side of inverter with it is described
Voltage between third relay 430.Voltage between first relay 410 and the third relay 430 is specific
Detection mode can be selected according to actual needs.
Judge whether first relay 410 and the third relay 430 are normal according to the second detection voltage.
Specifically, can be by controlling the actuation of first relay 410 or disconnecting actuation with the third relay 430 or disconnected
It opens and the second detection voltage judges whether first relay 410 and the third relay 430 are normal.
In one embodiment, first relay 410, the second relay 420, the third relay 430 are attracted
With the 4th relay 440.If the second detection voltage and the first detection voltage are within the scope of the second sampling error
It is equal, then determine that first relay 410 and the third relay 430 are normal.In one embodiment, if described second
It detects voltage and the first detection voltage is unequal within the scope of second sampling error, then determine first relay
410 and/or the third relay 430 it is abnormal.In one embodiment, the numerical value of second sampling error is not done specifically
Restriction, can be set according to actual needs, for example be set as 10V or 20V etc..
In one embodiment, it is attracted first relay 410, disconnects described in the third relay 430 or actuation
Third relay 430 disconnects first relay 410.If the second detection voltage and the first detection voltage are in institute
It states equal within the scope of the second sampling error, then determines that first relay 410 and/or the third relay 430 are abnormal.
In one embodiment, if first relay 410 and/or the third relay 430 are abnormal, stop detecting.
S106: if first relay 410 and the third relay 430 are normal, 300 sides of the load are detected
Voltage between 5th relay 450 and the 6th relay 460 obtains third detection voltage, according to the third
Detection voltage judges whether the 5th relay 450 and the 6th relay 460 are normal, so that it is determined that the mixing inversion
The working condition of device circuit 10.
It is appreciated that between the 5th relay 450 and the 6th relay 460 of 300 sides of the detection load
Voltage detection mode it is unlimited, as long as it can ensure that obtaining third detection voltage.In one embodiment, can lead to
Cross the voltage loaded between the 5th relay 450 of 300 sides and the 6th relay 460 described in multimeter detection.?
In one embodiment, the electricity between the 5th relay 450 and the 6th relay 460 of 300 sides of load can also be passed through
Pressure.The specific detection mode of voltage between 5th relay 450 and the 6th relay 460, can be according to practical need
It asks and is selected.
Judge whether the 5th relay 450 and the 6th relay 460 are normal according to third detection voltage.
Specifically, can be by controlling the actuation of the 5th relay 450 or disconnecting actuation with the 6th relay 460 or disconnected
It opens and third detection voltage judges whether the 5th relay 450 and the 6th relay 460 are normal.
In one embodiment, be attracted 200 side of AC network second relay 420 and the 4th relay
Device 440.It is attracted first relay 410 and the third relay 430 of 100 side of inverter.It is attracted the described 5th
Relay 450 and the 6th relay 460.If the third detection voltage and the first detection voltage are sampled in third and are missed
It is equal in poor range, then determine that the 5th relay 450 and the 6th relay 460 are normal.In one embodiment, if
Third detection voltage and described first to detect voltage unequal within the scope of the third sampling error then determines described the
Five relays 450 and/or the 6th relay 460 are abnormal.In one embodiment, the numerical value of the third sampling error
Specific restriction is not done, can be set according to actual needs, for example be set as 15V or 20V etc..
In one embodiment, it is attracted the 5th relay 450, disconnects described in the 6th relay 460 or actuation
6th relay 460 disconnects the 5th relay 450.If the third detection voltage and the first detection voltage are in institute
It states equal within the scope of third sampling error, then determines that the 5th relay 450 and/or the 6th relay 460 are abnormal.
In one embodiment, if the 5th relay 450 and/or the 6th relay 460 are abnormal, it is determined that the mixing
There are failures for relay in inverter circuit 10 in 300 sides of the load.
In the present embodiment, pass through each relay to the alternating current net side, the inverter side and the load-side
Device is successively detected, while the working condition of each relay can be accurately detected according to corresponding judgment criteria.There is no accidentally
Detection or leak detection phenomenon, enable the reliability of whole device to be guaranteed.
In one embodiment, second relay 420 and the described 4th of detection 200 side of AC network
Voltage between relay 440 obtains the first detection voltage, judges second relay according to the first detection voltage
420 and the whether normal step of the 4th relay 440 include: detect 200 side of AC network first described second
Voltage between relay 420 and the 4th relay 440 obtains the first detection voltage.Secondly, by the first detection electricity
Pressure is compared with default floating voltage, obtains the first comparison result.Finally, judging described according to first comparison result
Whether two relays 420 and the 4th relay 440 are normal.
It is appreciated that the specific value of the default floating voltage is unlimited, as long as guaranteeing according to the first detection voltage
First comparison result can be obtained with the default floating voltage.In one embodiment, the default floating electricity
Pressure, which is seen, may be set to 10V.In one embodiment, the default floating voltage sees that the moon may be set to 20V.The default floating electricity
The specific value of pressure can be set according to actual needs.
It is appreciated that the mode that the first detection voltage is compared with default floating voltage is unlimited, as long as guaranteeing
It can obtain first comparison result.In one embodiment, by the first detection voltage and the default floating
Voltage can carry out difference comparsion.In one embodiment, by the first detection voltage and the default floating voltage with can be into
Value of doing business compares.
Judge whether second relay 420 and the 4th relay 440 are normal according to first comparison result.
In one embodiment, if first comparison result is zero within the scope of first sampling error, determine described second
Relay 420 and the 4th relay 440 are normal.In one embodiment, if first comparison result is described first
It is not zero within the scope of sampling error, then determines that second relay 420 and/or the 4th relay 440 are abnormal.
In one embodiment, it is attracted second relay 420, disconnects described in the 4th relay 440 or actuation
4th relay 440 disconnects second relay 420, if first comparison result is in the first sampling error range
Inside it is zero, then determines that second relay 420 and/or the 4th relay 440 are abnormal.In one embodiment, if
Second relay 420 and/or the 4th relay 440 are abnormal, then stop detecting.
In one embodiment, described to judge second relay 420 and described according to first comparison result
The whether normal step of four relay 440 includes: to be attracted the 4th relay 440 first, disconnects second relay
420, if first comparison result is less than or equal to the first preset threshold, judge that the 4th relay 440 has short circuit
Failure.Secondly, second relay 420 and the 4th relay 440 are attracted, if first comparison result is greater than described
First preset threshold then judges that there are open circuit faults for second relay 420.Finally, if first comparison result is less than
Or be equal to first preset threshold, then judge that second relay 420 and the 4th relay 440 are normal.
It is appreciated that the numerical value of first preset threshold does not do specific restriction, as long as guaranteeing pre- according to described first
If threshold value can judge the malfunction of second relay 420 and the 4th relay 440.In one embodiment
In, first preset threshold may be set to 10V.In one embodiment, first preset threshold also may be set to 20V.
The specific value of first preset threshold, can be set according to actual needs.
In one embodiment, it if second relay 420 and the 4th relay 440 are normal, detects
Voltage between first relay 410 and the third relay 430 of 100 side of inverter, obtains the second detection
Voltage judges whether first relay 410 and the third relay 430 normally walk according to the second detection voltage
If suddenly including: that the second relay 420 described first and the 4th relay 440 are normal, 100 side of inverter is detected
Voltage between first relay 410 and the third relay 430 obtains the second detection voltage.Secondly, by described
Two detection voltages are compared with the first detection voltage, obtain the second comparison result.Finally, comparing knot according to described second
Fruit judges whether first relay 410 and the third relay 430 are normal.
It is appreciated that the mode that the second detection voltage is compared with the first detection voltage is unlimited, as long as
Guarantee to obtain second comparison result.In one embodiment, by the second detection voltage and described first
Detection voltage can carry out difference comparsion.In one embodiment, by the second detection voltage and the first detection voltage
It can carry out quotient comparison.Manner of comparison between the second detection voltage and the first detection voltage, can be according to practical need
It asks and is selected.In one embodiment, detect 100 side of inverter first relay 410 and the third after
Mode described in above-described embodiment can be used in the detection mode of voltage between electric appliance 430, here just not repeated description.
Judge whether first relay 410 and the third relay 430 are normal according to second comparison result.
In one embodiment, first relay 410, the second relay 420, the third relay 430 and described the are attracted
Four relays 440.If second comparison result is zero within the scope of second sampling error, first relay is determined
Device 410 and the third relay 430 are normal.In one embodiment, if second comparison result is in second sampling
It is not zero in error range, then determines that first relay 410 and/or the third relay 430 are abnormal.In a reality
It applies in example, the numerical value of second sampling error does not do specific restriction, can be set according to actual needs, for example be set as
10V or 20V etc..
In one embodiment, it is attracted first relay 410, disconnects described in the third relay 430 or actuation
Third relay 430 disconnects first relay 410, if second comparison result is in the second sampling error range
Inside it is zero, then determines that first relay 410 and/or the third relay 430 are abnormal (there is failure).At one
In embodiment, if first relay 410 and/or the third relay 430 are abnormal, stop detecting.
In one embodiment, described to judge first relay 410 and described according to second comparison result
The whether normal step of three relay 430 includes: firstly, being attracted second relay 420,430 and of third relay
4th relay 440 disconnects first relay 410.If it is default that second comparison result is less than or equal to second
Threshold value then judges that there are short troubles for first relay 410.Secondly, being attracted first relay 410, and disconnect institute
State third relay 430.If second comparison result be less than or equal to second preset threshold, judge the third after
There are short troubles for electric appliance 430.Finally, being attracted first relay 410, second relay 420, the third relay
Device 430 and the 4th relay 440.If second comparison result is less than or equal to second preset threshold, judge
First relay 410 and the third relay 430 are normal.If it is default that second comparison result is greater than described second
Threshold value then judges that first relay 410 and/or the third relay 430 and/or the 4th relay 440 exist
Open circuit fault.
It is appreciated that the numerical value of second preset threshold does not do specific restriction, as long as guaranteeing pre- according to described second
If threshold value can judge the malfunction of first relay 410 and the third relay 430.In one embodiment
In, second preset threshold may be set to 10V.In one embodiment, second preset threshold also may be set to 20V.
The specific value of second preset threshold, can be set according to actual needs.
In one embodiment, if second comparison result be greater than second preset threshold, judgement described in
First relay 410 and/or the third relay 430 and/or the 4th relay 440 the step of there are open circuit faults packet
Include: if second comparison result is greater than second preset threshold, and the default floating voltage is pre- less than or equal to third
If threshold value, then judging the 4th relay 440, there are open circuit fault, first relay 410 and the third relays
430 is normal.If second comparison result is greater than second preset threshold, and the default floating voltage is greater than the third
Preset threshold then judges that the 4th relay 440 is normal, first relay 410 and/or the third relay 430
There are open circuit faults.
It is appreciated that the numerical value of the third predetermined threshold value does not do specific restriction, as long as guaranteeing pre- according to the third
If threshold value can judge the 4th relay 440 with the presence or absence of open circuit fault.In one embodiment, the third is pre-
If threshold value may be set to 100V.In one embodiment, the third predetermined threshold value also may be set to 150V.The third is default
The specific value of threshold value can be set according to actual needs.
In one embodiment, if second comparison result be greater than second preset threshold, judgement described in
First relay 410 and/or the third relay 430 and/or the 4th relay 440 the step of there are open circuit faults it
Afterwards further include: the 4th relay 440 is disconnected, if the default floating voltage is greater than the 4th preset threshold, described in judgement
4th relay, 440 short circuit.If the default floating voltage is less than or equal to the 4th preset threshold, the described 4th is judged
Relay 440 is normal.
It is appreciated that the numerical value of the 4th preset threshold does not do specific restriction, as long as guaranteeing pre- according to the described 4th
If threshold value can judge the 4th relay 440 with the presence or absence of short trouble.In one embodiment, the described 4th is pre-
If threshold value may be set to 10V.In one embodiment, the 4th preset threshold also may be set to 5V.The 4th default threshold
The specific value of value can be set according to actual needs.
In one embodiment, it if first relay 410 and the third relay 430 are normal, detects
Voltage between the 5th relay 450 and the 6th relay 460 of 300 sides of the load obtains third detection electricity
Pressure judges whether the 5th relay 450 and the 6th relay 460 are normal according to third detection voltage, thus
The step of determining the working condition of the mixing inverter circuit 10 includes: firstly, if first relay 410 and described the
Three relays 430 are normal, then between the 5th relay 450 and the 6th relay 460 for detecting 300 sides of the load
Voltage, obtain third detection voltage.Secondly, third detection voltage is compared with the first detection voltage, obtain
To third comparison result.Finally, judging the 5th relay 450 and the 6th relay 460 according to the third comparison result
It is whether normal, so that it is determined that the working condition of the mixing inverter circuit 10.
It is appreciated that the mode that third detection voltage is compared with the first detection voltage is unlimited, as long as
Guarantee to obtain the third comparison result.In one embodiment, by third detection voltage and described first
Detection voltage can carry out difference comparsion.In one embodiment, by the third detection voltage and it is described first detection voltage with
It can carry out quotient comparison.Manner of comparison between the third detection voltage and the first detection voltage, can be according to practical need
It asks and is selected.
Judge whether the 5th relay 450 and the 6th relay 460 are normal according to the third comparison result.
In one embodiment, second relay 420 and the 4th relay 440 of 200 side of AC network are attracted.It inhales
Close first relay 410 and the third relay 430 of 100 side of inverter.It is attracted the 5th relay 450
With the 6th relay 460.If the third comparison result is zero within the scope of third sampling error, the described 5th is determined
Relay 450 and the 6th relay 460 are normal.In one embodiment, if the third comparison result is in the third
It is not zero within the scope of sampling error, then determines that the 5th relay 450 and/or the 6th relay 460 are abnormal.
In one embodiment, it is attracted the 5th relay 450, disconnects described in the 6th relay 460 or actuation
6th relay 460 disconnects the 5th relay 450, if the third comparison result is in the third sampling error range
Inside it is zero, then determines that the 5th relay 450 and/or the 6th relay 460 are abnormal.In one embodiment, if
5th relay 450 and/or the 6th relay 460 are abnormal, it is determined that in the mixing inverter circuit 10
There are failures for the relay of 300 sides of the load.
In one embodiment, it is described according to the third comparison result judge the 5th relay 450 and the described 6th after
Whether electric appliance 460 is normal, so that it is determined that the step of working condition of the mixing inverter circuit 10 includes: firstly, being attracted institute
State the first relay 410, second relay 420, the third relay 430, the 4th relay 440 and described
Five relays 450 disconnect the 6th relay 460.If the third comparison result is less than or equal to the 5th preset threshold,
Judge that there are short troubles for the 6th relay 460.
Secondly, disconnecting the 5th relay 450, it is attracted the 6th relay 460.If the third comparison result is small
In or equal to the 5th preset threshold, then judge that there are short troubles for the 5th relay 450.Finally, the crystalline substance is connected
After brake tube 400, it is attracted the 5th relay 450.If the third comparison result is greater than the 5th preset threshold, judge
There are open circuit faults for 6th relay 460.When the third comparison result be less than or equal to the 5th preset threshold, break
Open the thyristor 400.If the third comparison result is greater than the 5th preset threshold at this time, the 5th relay is judged
There are open circuit faults for device 450.
It is appreciated that the numerical value of the 5th preset threshold does not do specific restriction, as long as guaranteeing pre- according to the described 5th
If threshold value can judge the malfunction barrier of the 5th relay 450 and the 6th relay 460.Implement at one
In example, the 5th preset threshold may be set to 10V.In one embodiment, the 5th preset threshold also may be set to
20V.The specific value of 5th preset threshold, can be set according to actual needs.In one embodiment, described negative
450 both ends of the 5th relay for carrying 300 sides are connected in parallel the thyristor 400, by the actuation of the thyristor 400 with
It disconnects to prevent the load 300 from generating excessive dash current or flickering, and then influences the use of the 5th relay 450
Service life.
In one embodiment, second relay 420 and the described 4th of detection 200 side of AC network
Voltage between relay 440 obtains the first detection voltage, judges second relay according to the first detection voltage
420 and the whether normal step of the 4th relay 440 after further include: if second relay 420 and/or described
Four relays 440 then stop detecting there are failure.In one embodiment, when the relay for detecting 200 side of AC network
Device then stops detecting there are failure.
In one embodiment, it if second relay 420 and the 4th relay 440 are normal, detects
Voltage between first relay 410 and the third relay 430 of 100 side of inverter, obtains the second detection
Voltage judges whether first relay 410 and the third relay 430 normally walk according to the second detection voltage
After rapid further include: if first relay 410 and/or the third relay 430 stop detecting there are failure.?
In one embodiment, when the relay for detecting 100 side of inverter is there are failure, then stop detecting.
Fig. 3 is referred to, the mixing inverter circuit 10 further includes solar panel 510, booster circuit 520, battery
530, DC/DC circuit 540, first capacitor 550, the first inductance 560, the second inductance 570 and the second capacitor 580.The solar energy
Solar panel 510 is electrically connected by the booster circuit 520 with the inverter 100.The battery 530 passes through the DC/DC electricity
Road 540 is connected in parallel between the booster circuit 520 and the inverter 100.The first capacitor 550 is connected in parallel in institute
It states between booster circuit 520 and the inverter 100.First inductance 560 is electrically connected to first relay 410 and institute
State the firewire 210 between inverter 100.Second inductance 570 be electrically connected to the third relay 430 with it is described inverse
Become the zero curve 220 between device 100.Second capacitor 580 be electrically connected to first relay 410 with described second after
The zero curve between the firewire 210 and the third relay 430 and the 4th relay 440 between electric appliance 420
Between 220.
When the AC network 200 is normal and has PV (photovoltaic refers to and utilizes solar power generation) or the battery
(530) when inputting, into relay test task.The sequence of detection is first to carry out the relay inspection of 200 side of AC network
It surveys, then carries out the relay test of 100 side of inverter again, finally carry out the relay test of 300 sides of the load.Tool
The detection mode of body and the working condition for judging each relay, can be used content described in above-described embodiment, here just not
Repeated description.During detection, stop remaining relay test, while alarm prompt if having any failure.
In conclusion the application passes through to 200 side of AC network, 100 side of the inverter and the load 300
Each relay of side is successively detected.The independent event of each relay can be accurately detected according to corresponding judgment criteria simultaneously
Barrier is combined with each other failure.There is no error detection or leak detection phenomenons, and the reliability of whole device is protected
Card.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The several embodiments of the application above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the concept of this application, various modifications and improvements can be made, these belong to the protection of the application
Range.Therefore, the scope of protection shall be subject to the appended claims for the application patent.
Claims (11)
1. a kind of relay test method of light storage mixing inverter, which is characterized in that be applied to including inverter (100), hand over
Galvanic electricity net (200), load (300), thyristor (400), the first relay (410), the second relay (420), third relay
(430), the mixing inverter circuit (10) of the 4th relay (440), the 5th relay (450) and the 6th relay (460), institute
State the first relay (410), the second relay (420) is connected in series in the inverter (100) and the AC network (200)
Between firewire (210), the third relay (430), the 4th relay (440) are connected in series in the inverter (100)
Zero curve (220) between the AC network (200), the 5th relay (450) are electrically connected to first relay
(410) between the firewire (210) between second relay (420) and the load (300), the 6th relay
Device (460) be electrically connected to the zero curve (220) between the third relay (430) and the 4th relay (440) and
Between the load (300), the thyristor (400) is connected in parallel in the 5th relay (450), which comprises
Detect the electricity between second relay (420) of the AC network (200) side and the 4th relay (440)
Pressure, obtains the first detection voltage, judges second relay (420) and the 4th relay according to the first detection voltage
Whether device (440) is normal；
If second relay (420) and the 4th relay (440) are normally, the inverter (100) side is detected
Voltage between first relay (410) and the third relay (430) obtains the second detection voltage, according to described in
Second detection voltage judges whether first relay (410) and the third relay (430) are normal；
If first relay (410) and the third relay (430) are normally, the institute of described load (300) side is detected
The voltage between the 5th relay (450) and the 6th relay (460) is stated, third detection voltage is obtained, according to described the
Three detection voltages judge whether the 5th relay (450) and the 6th relay (460) are normal, so that it is determined that described mixed
Close the working condition of inverter circuit (10).
2. the relay test method of light storage mixing inverter according to claim 1, which is characterized in that the detection institute
The voltage between second relay (420) of AC network (200) side and the 4th relay (440) is stated, obtains
One detection voltage judges second relay (420) according to the first detection voltage and the 4th relay (440) is
No normal step includes:
Detect the electricity between second relay (420) of the AC network (200) side and the 4th relay (440)
Pressure, obtains the first detection voltage；
The first detection voltage is compared with default floating voltage, obtains the first comparison result；
Judge whether second relay (420) and the 4th relay (440) are normal according to first comparison result.
3. the relay test method of light storage mixing inverter according to claim 2, which is characterized in that described according to institute
State that the first comparison result judges second relay (420) and the whether normal step of the 4th relay (440) includes:
Be attracted the 4th relay (440), disconnect second relay (420), if first comparison result be less than or
Equal to the first preset threshold, then judge that there are short troubles for the 4th relay (440)；
It is attracted second relay (420) and the 4th relay (440), if first comparison result is greater than described the
One preset threshold then judges that there are open circuit faults for second relay (420)；
If first comparison result be less than or equal to first preset threshold, judge second relay (420) and
4th relay (440) is normal.
4. the relay test method of light storage mixing inverter according to claim 2, which is characterized in that if described
Second relay (420) and the 4th relay (440) normally, then detect described the first of the inverter (100) side after
Voltage between electric appliance (410) and the third relay (430) obtains the second detection voltage, according to the second detection electricity
Pressure judges first relay (410) and the whether normal step of the third relay (430) includes:
If second relay (420) and the 4th relay (440) are normally, the inverter (100) side is detected
Voltage between first relay (410) and the third relay (430), obtains the second detection voltage；
The second detection voltage is compared with the first detection voltage, obtains the second comparison result；
Judge whether first relay (410) and the third relay (430) are normal according to second comparison result.
5. the relay test method of light storage mixing inverter according to claim 4, which is characterized in that described according to institute
State that the second comparison result judges first relay (410) and the whether normal step of the third relay (430) includes:
Second relay (420), the third relay (430) and the 4th relay (440) are attracted, described in disconnection
First relay (410) judges first relay if second comparison result is less than or equal to the second preset threshold
(410) there are short troubles；
It is attracted first relay (410), and disconnects the third relay (430), if second comparison result is less than
Or be equal to second preset threshold, then judge that there are short troubles for the third relay (430)；
It is attracted first relay (410), second relay (420), the third relay (430) and the described 4th
Relay (440) judges first relay if second comparison result is less than or equal to second preset threshold
(410) and the third relay (430) is normal；
If second comparison result is greater than second preset threshold, first relay (410) and/or described is judged
There are open circuit faults for third relay (430) and/or the 4th relay (440).
6. the relay test method of light storage mixing inverter according to claim 5, which is characterized in that if described
Second comparison result is greater than second preset threshold, then judges first relay (410) and/or the third relay
(430) and/or the 4th relay (440) there are the step of open circuit fault to include:
If second comparison result is greater than second preset threshold, and the default floating voltage is pre- less than or equal to third
If threshold value, then judge the 4th relay (440) there are open circuit fault, first relay (410) and the third after
Electric appliance (430) is normal；
If second comparison result is greater than second preset threshold, and the default floating voltage is default greater than the third
Threshold value then judges the 4th relay (440) normally, first relay (410) and/or the third relay
(430) there are open circuit faults.
7. the relay test method of light storage mixing inverter according to claim 5, which is characterized in that if described
Second comparison result is greater than second preset threshold, then judges first relay (410) and/or the third relay
(430) and/or after the 4th relay (440) the step of there are open circuit faults further include:
The 4th relay (440) is disconnected, if the default floating voltage is greater than the 4th preset threshold, judges the described 4th
Relay (440) short circuit, if the default floating voltage be less than or equal to the 4th preset threshold, judge the described 4th after
Electric appliance (440) is normal.
8. the relay test method of light storage mixing inverter according to claim 1, which is characterized in that if described
First relay (410) and the third relay (430) normally, then detect the 5th relay of described load (300) side
Voltage between device (450) and the 6th relay (460) obtains third detection voltage, detects voltage according to the third
Judge whether the 5th relay (450) and the 6th relay (460) are normal, so that it is determined that the mixing inverter is electric
The step of working condition on road (10) includes:
If first relay (410) and the third relay (430) are normally, the institute of described load (300) side is detected
The voltage between the 5th relay (450) and the 6th relay (460) is stated, third detection voltage is obtained；
Third detection voltage is compared with the first detection voltage, obtains third comparison result；
Judge whether the 5th relay (450) and the 6th relay (460) are normal according to the third comparison result, thus
Determine the working condition of mixing inverter circuit (10).
9. the relay test method of light storage mixing inverter according to claim 8, which is characterized in that described according to institute
It states third comparison result and judges whether the 5th relay (450) and the 6th relay (460) are normal, so that it is determined that described mixed
Close inverter circuit (10) working condition the step of include:
It is attracted first relay (410), second relay (420), the third relay (430), the described 4th
Relay (440) and the 5th relay (450) disconnect the 6th relay (460), if the third comparison result is small
In or equal to the 5th preset threshold, then judge that there are short troubles for the 6th relay (460)；
Disconnect the 5th relay (450), be attracted the 6th relay (460), if the third comparison result be less than or
Equal to the 5th preset threshold, then judge that there are short troubles for the 5th relay (450)；
After the thyristor (400) are connected, it is attracted the 5th relay (450), if the third comparison result is greater than described
5th preset threshold then judges that there are open circuit faults for the 6th relay (460)；
If third comparison result is less than or equal to the 5th preset threshold, the thyristor (400) are disconnected, if described at this time the
Three comparison results are greater than the 5th preset threshold, then judge that there are open circuit faults for the 5th relay (450).
10. the relay test method of light storage mixing inverter according to claim 1, which is characterized in that the detection
Voltage between second relay (420) and the 4th relay (440) of AC network (200) side, obtains
First detection voltage judges second relay (420) and the 4th relay (440) according to the first detection voltage
Whether after normal step further include:
If second relay (420) and/or the 4th relay (440) stop detecting there are failure.
11. the relay test method of light storage mixing inverter according to claim 1, which is characterized in that if the institute
It states the second relay (420) and the 4th relay (440) normally, then detects described the first of the inverter (100) side
Voltage between relay (410) and the third relay (430) obtains the second detection voltage, according to second detection
Voltage judges after first relay (410) and the whether normal step of the third relay (430) further include:
If first relay (410) and/or the third relay (430) stop detecting there are failure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811190267.6A CN109490766A (en) | 2018-10-12 | 2018-10-12 | The relay test method of light storage mixing inverter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811190267.6A CN109490766A (en) | 2018-10-12 | 2018-10-12 | The relay test method of light storage mixing inverter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109490766A true CN109490766A (en) | 2019-03-19 |
Family
ID=65690801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811190267.6A Pending CN109490766A (en) | 2018-10-12 | 2018-10-12 | The relay test method of light storage mixing inverter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109490766A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111521928A (en) * | 2020-04-28 | 2020-08-11 | 阳光电源股份有限公司 | Grid-connected switch failure detection method and system of three-phase inverter |
| CN112964981A (en) * | 2021-02-05 | 2021-06-15 | 苏州海鹏科技有限公司 | Three-phase photovoltaic inverter relay fault detection method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101577191A (en) * | 2009-06-02 | 2009-11-11 | 深圳市英唐智能控制股份有限公司 | Method for protecting contact point of relay in high-power circuit and protection circuit |
| CN102628925A (en) * | 2012-04-24 | 2012-08-08 | 杭州浙大桑尼能源科技有限公司 | Method and device for detecting faults of relays of photovoltaic inverter |
| DE102011018229A1 (en) * | 2011-04-19 | 2012-10-25 | Diehl Ako Stiftung & Co. Kg | Circuit arrangement for electrical isolation of an electrical device from the network |
| CN104682432A (en) * | 2015-02-27 | 2015-06-03 | 广东易事特电源股份有限公司 | Method for detecting failure of relays and protecting filter capacitors of photovoltaic grid-connected inverters |
| CN105021977A (en) * | 2014-04-30 | 2015-11-04 | 深圳创动科技有限公司 | AC relay detection method and system before grid connection of photovoltaic inverter |
| CN105527565A (en) * | 2014-10-27 | 2016-04-27 | 国家电网公司 | Relay abnormity self-checking method in relay circuit |
-
2018
- 2018-10-12 CN CN201811190267.6A patent/CN109490766A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101577191A (en) * | 2009-06-02 | 2009-11-11 | 深圳市英唐智能控制股份有限公司 | Method for protecting contact point of relay in high-power circuit and protection circuit |
| DE102011018229A1 (en) * | 2011-04-19 | 2012-10-25 | Diehl Ako Stiftung & Co. Kg | Circuit arrangement for electrical isolation of an electrical device from the network |
| CN102628925A (en) * | 2012-04-24 | 2012-08-08 | 杭州浙大桑尼能源科技有限公司 | Method and device for detecting faults of relays of photovoltaic inverter |
| CN105021977A (en) * | 2014-04-30 | 2015-11-04 | 深圳创动科技有限公司 | AC relay detection method and system before grid connection of photovoltaic inverter |
| CN105527565A (en) * | 2014-10-27 | 2016-04-27 | 国家电网公司 | Relay abnormity self-checking method in relay circuit |
| CN104682432A (en) * | 2015-02-27 | 2015-06-03 | 广东易事特电源股份有限公司 | Method for detecting failure of relays and protecting filter capacitors of photovoltaic grid-connected inverters |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111521928A (en) * | 2020-04-28 | 2020-08-11 | 阳光电源股份有限公司 | Grid-connected switch failure detection method and system of three-phase inverter |
| CN112964981A (en) * | 2021-02-05 | 2021-06-15 | 苏州海鹏科技有限公司 | Three-phase photovoltaic inverter relay fault detection method |
| CN112964981B (en) * | 2021-02-05 | 2023-01-24 | 苏州海鹏科技有限公司 | Three-phase photovoltaic inverter relay fault detection method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106463967B (en) | A kind of gird-connected inverter safety detection device and method | |
| US10734944B2 (en) | Inverter having grid disconnection point and insulation resistance measurement and method for measuring an insulation resistance | |
| CN103558496B (en) | A kind of one pole earthed system and failure detector, method | |
| RU2666803C1 (en) | Method for measuring insulation resistance of ungrounded dc power network and for localizing earth fault, and current injecting two-pole device | |
| EP2921871B1 (en) | Connection integrity testing method and apparatus for multi-stage voltage source converters | |
| CN106130475A (en) | Inspecting apparatus for photovoltaic devices and solaode inspection method | |
| CN106208129B (en) | The connection control method of parallel connection direct power supply and its device of application | |
| CN103929086B (en) | Photovoltaic DC-to-AC converter and its startup self-detection method | |
| EP3633841B1 (en) | Power conversion device | |
| US20160099569A1 (en) | Energy generating device with functionally reliable potential separation | |
| CN105510759B (en) | Electric leak detecting device and its detection method | |
| EP2887077A1 (en) | Capacitor failure indication circuit | |
| CN105021977A (en) | AC relay detection method and system before grid connection of photovoltaic inverter | |
| CN109375099A (en) | A kind of fault detection method of photovoltaic inverter grid-connected relay | |
| CN108432082A (en) | Connectivity checks between the battery carried out using only one switch and control wired electronic device | |
| CN109490766A (en) | The relay test method of light storage mixing inverter | |
| CN114204594A (en) | Grid-connected system and insulation impedance detection method | |
| CN103140931A (en) | Circuit arrangement for setting a potential of a photovoltaic generator | |
| CN104682354B (en) | Detect short circuit diode | |
| Chen et al. | A fuzzy logic approach for fault diagnosis and recovery in PHEV and EV chargers | |
| EP2487496A1 (en) | Method for isolation measurements using pre-charge and discharge circuitry | |
| Balasreedharan et al. | An adaptive fault identification scheme for DC microgrid using event based classification | |
| CN207977729U (en) | A kind of earth leakage protective device | |
| CN115327234A (en) | Alternating current-direct current ground insulation impedance monitoring device and method of inverter | |
| CN206259694U (en) | The protection device of inversion system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190319 |