CN105207263B - The photovoltaic generating system and grid-connected control method of garbage incinerating power plant - Google Patents
The photovoltaic generating system and grid-connected control method of garbage incinerating power plant Download PDFInfo
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- CN105207263B CN105207263B CN201510636680.0A CN201510636680A CN105207263B CN 105207263 B CN105207263 B CN 105207263B CN 201510636680 A CN201510636680 A CN 201510636680A CN 105207263 B CN105207263 B CN 105207263B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/10—Photovoltaic [PV]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
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Abstract
The invention discloses the photovoltaic generating system of garbage incinerating power plant, including photovoltaic module, lightning protection component, solar control component, inversion component, batch meter and the local power distribution cabinet being connected respectively with batch meter and the screen component being sequentially connected, solar control component is also connected with batteries, and photovoltaic module includes multiple solar battery groups；Described and screen component includes increasing apparatus, centralized control center and power-management centre, increasing apparatus is connected with batch meter, centralized control center, utility grid respectively, and the data of increasing apparatus analytic set control central data simultaneously control increasing apparatus to the grid-connected power supply of utility grid from power-management centre by centralized control center.Photovoltaic generating system of the present invention makes full use of the idle spaces such as garbage incinerating power plant building roof, guard plot to carry out photovoltaic generation, energy-saving and emission-reduction.Grid-connected control method involved in the present invention is to concentrate grid-connected by small-power, the interconnection of distributed solar energy battery pack and receive power-management centre scheduling and carry out grid-connected power supply.
Description
Technical field
The present invention relates to field of photovoltaic power generation, in particular to the photovoltaic generating system and cutting-in control of garbage incinerating power plant
Method.
Background technology
On the one hand, garbage incinerating power plant will first consume electric energy progress garbage disposal before carrying out waste incineration and generating electricity；It is another
Aspect, guard plot is must be provided with request around garbage incinerating power plant, guard plot is mostly idle land, causes certain resource
Waste.
On the other hand, photovoltaic generation has randomness and the intermittent feature different from normal power supplies in itself, first, light
The injection of volt power has a significant impact to the quality of voltage and stability of partial electric grid, limits the side of photovoltaic generation access system
Formula and scale, second, the motive power controllability of photovoltaic generation is not strong, if in generating state and go out the limited size of work(in
Weather conditions and the performance of photovoltaic system, it is incorporated into the power networks forms certain prestige to the quality of power supply and safe and stable operation of power network
The side of body.Therefore, because operation of power networks caused by the unstability of photovoltaic generation, island effect etc. and safety problem will greatly limit light
The grid-connected power supply of photovoltaic generating system.
The content of the invention
An object of the present invention is the photovoltaic generating system for providing garbage incinerating power plant, and photovoltaic module is arranged on
The idle land of its plant area's building roof of garbage incinerating power plant or guard plot, and reduce plant area itself using solar power generation
The operation cost of electricity consumption, electric energy more than needed can also generate electricity by way of merging two or more grid systems.
Another object of the present invention is to provide the grid-connected control method of photovoltaic generating system, make scattered photovoltaic generation system
System concentrates grid-connected, unified monitoring scheduling.
The photovoltaic generating system of garbage incinerating power plant, including be sequentially connected photovoltaic module, lightning protection component, solar energy control
Component, inversion component, batch meter and the local power distribution cabinet and screen component being connected respectively with batch meter processed, solar control component
Also it is connected with batteries；The photovoltaic module is arranged on garbage incinerating power plant plant area building roof or protection including multiple
The solar battery group in area, lightning protection component include multiple lightning protection devices, and solar control component includes multiple controller for solar, inverse
Becoming component includes multiple inverters, and solar battery group, lightning protection device, controller for solar, inverter connect one to one successively；
Described and screen component includes increasing apparatus, centralized control center and power-management centre, during increasing apparatus is controlled with batch meter, collection respectively
The heart, utility grid connection, the data of increasing apparatus analytic set control central data are simultaneously controlled by power-management centre by centralized control center
Increasing apparatus processed is to the grid-connected power supply of utility grid.
The grid-connected control method of photovoltaic generating system is that small-power, distributed solar energy battery pack interconnection concentration is grid-connected simultaneously
Receive power-management centre scheduling and carry out grid-connected power supply, detailed process is：Each solar battery group is by the direct current energy of conversion
By in inverter corresponding to corresponding lightning protection device, controller for solar access, the direct current energy of solar battery group conversion passes through
Controller for solar is first charged, after the completion of battery charging, inverter will be straight with maximum power output to batteries
The industrial frequency AC electric energy that electric energy inversion is 380V is flowed, and is distributed to local power distribution cabinet by batch meter or simultaneously screen component, in collection control
Parameters and transmission carry out analyzing judgement into increasing apparatus and drive increasing apparatus to act in heart collection photovoltaic generating system,
Power-management centre, which is sent, if all parameters are normal implements the instruction of grid-connected power supply and increasing apparatus is connected with utility grid,
Increasing apparatus disconnects with utility grid if having parameter abnormal.
The direct current energy of the photovoltaic module conversion is by controller for solar with corresponding to maximum power output and access
In inverter, while first charged by the direct current energy of controller for solar to battery, after the completion for the treatment of battery charging, then
Direct current energy is converted to 380V industrial frequency AC electric energy by inverter, AC energy is same by being concentrated on after centralized control center's parallel connection
Individual node is grid-connected.
The centralized control center and power-management centre telecommunication, report the ambient parameter and light of photovoltaic module in region
Volt component, solar control component, inversion component, the working condition of increasing apparatus are simultaneously monitored and performed by monitoring assembly
The operation for starting, adjusting, stopping, while receive the traffic order of power-management centre.Cutting-in control side involved in the present invention
Method is concentrated the small-power in garbage incinerating power plant coverage, distributed photovoltaic generating system using mechanics of communication
The control of grid-connected and remote scheduling, improve photovoltaic generating system access utility grid carry out the stability of grid-connected power supply, reliability and
Power quality.
The solar battery group is mainly made up of multiple solar battery sheets being sequentially connected in series, and solar battery sheet is single
Any one in crystal-silicon battery slice or polycrystalline silicon battery plate or III-V compound batteries piece.In the solar battery group too
Positive energy cell piece can be all using identical cell piece or using the cell piece differed.
The solar battery group, lightning protection device, controller for solar, inverter connect one to one successively, and multiple inverse
Become device rear access batch meter parallel with one another.
Further, the increasing apparatus include be sequentially connected in series the loop that generates electricity by way of merging two or more grid systems, drive circuit, logic circuit, control
Circuit processed, communication interface of boosting is also associated between the input, output end of control circuit.
Further, it is described generate electricity by way of merging two or more grid systems loop include be sequentially connected in series input protection switch, the first booster circuit, second
Booster circuit, grid-connected switch, input the output end of the input termination batch meter of protection switch, the output end and civil power of grid-connected switch
The input connection of power network；The input of first output termination input protection switch of the drive circuit, the of drive circuit
The input of two output the first booster circuits of termination, the input of the 3rd output the second booster circuit of termination of drive circuit, drives
4th output of dynamic circuit terminates the input of grid-connected switch.
Further, the centralized control center includes control device and the monitoring assembly being connected respectively with control device, collection control
Communication interface, the connection corresponding with boosting communication interface of collection control communication interface；Be integrated with the control device with power scheduling
The remote communication module of heart connection.
The centralized control center and increasing apparatus establish communication by collection control communication interface, the boosting communication interface of interconnection
Passage.The centralized control center establishes telecommunication passage by remote communication module and power-management centre.
Further, the monitoring assembly includes temperature sensor group, light radiation degree sensor group, Hall current sensing
Device group, Hall voltage sensor group, frequency sensor group, thermal imagery leakage current sensor group, the first booster voltage detection circuit, the
Two booster voltages detection circuit, the second boosting phase detecting circuit, grid-connected current detection circuit, power grid voltage detection circuit and electricity
Net phase detecting circuit；The temperature sensor group, light radiation degree sensor group are arranged at the erecting bed of photovoltaic module；
The Hall current sensor group, Hall voltage sensor group are separately positioned in controller for solar；The frequency sensor
Group, thermal imagery leakage current sensor group are separately positioned in inversion component；The first booster voltage detection circuit and the first boosting
Circuit connects；The second booster voltage detection circuit, the second boosting phase detecting circuit are connected with the second booster circuit respectively；
The grid-connected current detection circuit connects with grid-connected switch；The power grid voltage detection circuit, power grid phase detection circuit difference
It is connected with utility grid.
Temperature sensor group, light radiation degree sensor group in the monitoring assembly, Hall current sensor group, Hall
MODBUS TCP/IP field bus protocols are respectively adopted in voltage sensor group, frequency sensor group, thermal imagery leakage current sensor group
Signal data is corresponded in pickup area.The temperature sensor group is used for the temperature data for gathering photovoltaic module installation environment, light
It is used for the photometric data for gathering photovoltaic module installation environment according to radiancy sensor group.
Further, described and screen component also includes electrical control gear in the region that is connected with centralized control center.
Electric control system is connected with inversion component, centralized control center respectively in the region.
Further, the controller for solar includes multiple MPPT modules and multiple diodes, solar battery group,
MPPT modules, diode are connected one to one successively, and multiple MPPT modules for being provided with direct current transducer are serially connected；It is described
MPPT modules are provided with the electrode input end of connection corresponding with the positive pole of solar battery group and the negative pole with solar battery group
The negative input of corresponding connection, direct current transducer are provided with the cathode output end of connection corresponding with the negative electrode of diode and with two
The cathode output end of the corresponding connection of the anode of pole pipe.
The MPPT modules are MPPT maximum power point tracking module, for controlling solar battery group with maximum power output.
Multiple MPPT block coupled in series form MPPT module strings.Direct current transducer is integrated with the MPPT modules, direct current transducer will too
The electric current of positive energy battery pack output is converted into identical current value, by direct current transducer photovoltaic module with the shape of constant-current source
Formula power output.The solar battery sheet is connected one to one with MPPT modules and MPPT modules are corresponded with diode and connected
Connect.
Multiple solar battery sheets connect to form solar battery group, control solar battery group to work by MPPT modules
In maximum power point so that when in part, solar battery sheet is blocked, solar battery group remains able to output and now can
The peak power output of output.Avoid causing other solar cells because part solar battery sheet is blocked in the prior art
The power output of piece reduces, and the problem of so as to cause the generating efficiency of photovoltaic generating system low, has reached raising photovoltaic generation system
The effect of the generating efficiency of system.In addition, photovoltaic module power output in the form of constant-current source, photovoltaic module lead in the utility model
Cross series connection to integrate, can improve system voltage grade compared to by the integrated constant-pressure type photovoltaic module of parallel connection, the utility model, reduce
Power attenuation, it is applicable and Large Copacity photovoltaic generating system application.
When some or multiple MPPT module failures or when being exported without electric energy, in diode both ends meeting corresponding to the MPPT modules
Forming forward bias makes the diode current flow, and the operating current of MPPT module strings can bypass failure or export MPPT moulds without electric energy
Block, avoid due to the problem of MPPT module failures cause the Circuit Interrupt in whole photovoltaic module, without influenceing photovoltaic module
The normal output of normal work and electric energy.
Further, the centralized control center gathers parameters in photovoltaic generating system and transmission is carried out into increasing apparatus
Analysis judge and drive increasing apparatus act, in particular to：The data gathered in centralized control center by control device to monitoring assembly
Handled, then sent the data after processing to boosting by collection control communication interface, the boosting communication interface of interconnection
Device, control circuit, logic circuit carry out analysis judgement to acquisition parameter in increasing apparatus, and are controlled by drive circuit grid-connected
The action of power generation circuit；Comprise the following steps that：
Step S1：The electric current that monitoring assembly gathers the output of solar control component by Hall current sensor group respectively is joined
Count, the voltage parameter of solar control component output is gathered by Hall voltage sensor group, gathered by frequency sensor group
The frequency parameter of inversion component output AC energy, circuit collection the first booster circuit output is detected by the first booster voltage
First boosting parameter, the second boosting parameter exported by the second booster voltage detection circuit the second booster circuit of collection, pass through
Second boosting phase detecting circuit gathers the phase parameter of the second booster circuit output AC energy, detects electricity by grid-connected current
Road gathers the grid-connected current parameter of grid-connected switch, gathers the voltage parameter of utility grid by power grid voltage detection circuit, passes through
Power grid phase detection circuit gathers the phase parameter of utility grid, and control device is integrated by gathered data or conversion process,
The data after processing are sent to increasing apparatus by collection control communication interface, the boosting communication interface of interconnection；
Step S2：Control circuit, logic circuit in increasing apparatus judge solar control component output current parameters,
Whether voltage parameter, the frequency parameter of inversion component output AC energy of solar control component output are normal, if all normal
Then control circuit output control signal and pass through drive circuit connect input protection switch, solar battery group output alternating current
Crimp in the loop that generates electricity by way of merging two or more grid systems, then control circuit output drive signal and start the first booster circuit by drive circuit
Work；Input protection switch and return to step S1 are disconnected if any one parameter is abnormal；
Step S3：Control circuit judges the first boosting parameter of the first booster circuit output whether in setting range, if
It is that output drive signal simultaneously makes the second booster circuit start working by drive circuit；If otherwise disconnect input protection circuit simultaneously
Return to step S1；
Step S4：Control circuit judges the second boosting parameter of the second booster circuit output and the voltage parameter of utility grid
Whether in setting range, while control circuit judges the phase parameter and civil power electricity of the second booster circuit output AC energy
The whether same phase of the phase parameter of net, if being all control circuit output control signal and by drive circuit close it is grid-connected switch make
Second booster circuit electrically connects with utility grid；Input protection circuit is disconnected if any one parameter is unsatisfactory for requiring and is returned
Step S1；
Step S5：Control circuit judges grid-connected current parameter whether in setting range, if then grid-connected switch holding is closed
Close and control circuit sends feedback signal, control by interconnected boosting communication interface, collection control communication interface to control device
Device processed is established with power-management centre by remote communication module and is remotely connected and passes through centralized control center by power-management centre
Remote control is carried out to utility grid grid-connected power supply to increasing apparatus, now, the electric energy of solar battery group conversion passes sequentially through
Lightning protection component, controller for solar, inversion component, batch meter, the alternating current for loop output of generating electricity by way of merging two or more grid systems are coupled to utility grid
Grid-connected power supply is carried out, grid-connected switch and return to step S1 are disconnected if grid-connected current parameter is not in setting range；
Step S6：During grid-connected power supply, if control circuit judges that any one parameter of monitoring assembly collection goes out
Now abnormal, then output control signal disconnects input protection switch, grid-connected switch and return to step S1, stops grid-connected power supply.
The present invention compared with prior art, has advantages below and beneficial effect：
（1）The present invention makes full use of idle lands resources, and photovoltaic module is arranged on into its plant area of garbage incinerating power plant builds
Thing roof or the idle land of guard plot are built, and the operation cost of plant area itself electricity consumption is reduced using solar power generation, it is more than needed
Electric energy can also generate electricity by way of merging two or more grid systems, and further reduce the noxious gas emissions such as carbon dioxide, sulfur dioxide, energy-saving and emission-reduction；
（2）The invention provides the grid-connected control method of photovoltaic generating system, scattered photovoltaic generating system is concentrated simultaneously
Net, unified monitoring scheduling.
Brief description of the drawings
Fig. 1 is the annexation block diagram of photovoltaic generating system.
Fig. 2 is the annexation block diagram of simultaneously screen component.
Embodiment
The present invention is described in further detail with reference to embodiment, but the implementation of the present invention is not limited to this.
In addition, in order to better illustrate the present invention, numerous details is given in embodiment below.This area skill
Art personnel will be understood that, without these details, the present invention can equally be implemented.It is ripe for everybody in other example
Method, flow, element and the circuit known are not described in detail, in order to highlight the purport of the present invention.
Embodiment 1：
The photovoltaic generating system of the garbage incinerating power plant of the present embodiment, as shown in figure 1, mainly passing through following technical sides
Case is realized：The photovoltaic generating system of garbage incinerating power plant, including be sequentially connected photovoltaic module, lightning protection component, solar energy control
Component, inversion component, batch meter and the local power distribution cabinet and screen component being connected respectively with batch meter processed, solar control component
Also it is connected with batteries；The photovoltaic module is arranged on garbage incinerating power plant plant area building roof or protection including multiple
The solar battery group in area, lightning protection component include multiple lightning protection devices, and solar control component includes multiple controller for solar, inverse
Becoming component includes multiple inverters, and solar battery group, lightning protection device, controller for solar, inverter connect one to one successively；
Described and screen component includes increasing apparatus, centralized control center and power-management centre, during increasing apparatus is controlled with batch meter, collection respectively
The heart, utility grid connection, the data of increasing apparatus analytic set control central data are simultaneously controlled by power-management centre by centralized control center
Increasing apparatus processed is to the grid-connected power supply of utility grid.
The grid-connected control method of photovoltaic generating system is that small-power, distributed solar energy battery pack interconnection concentration is grid-connected simultaneously
Receive power-management centre scheduling and carry out grid-connected power supply, detailed process is：Each solar battery group is by the direct current energy of conversion
By in inverter corresponding to corresponding lightning protection device, controller for solar access, the direct current energy of solar battery group conversion passes through
Controller for solar is first charged, after the completion of battery charging, inverter will be straight with maximum power output to batteries
The industrial frequency AC electric energy that electric energy inversion is 380V is flowed, and is distributed to local power distribution cabinet by batch meter or simultaneously screen component, in collection control
Parameters and transmission carry out analyzing judgement into increasing apparatus and drive increasing apparatus to act in heart collection photovoltaic generating system,
Power-management centre, which is sent, if all parameters are normal implements the instruction of grid-connected power supply and increasing apparatus is connected with utility grid,
Increasing apparatus disconnects with utility grid if having parameter abnormal.
Embodiment 2：
The present embodiment does further optimization on the basis of above-described embodiment, as shown in Fig. 2 further, the boosting dress
Put including be sequentially connected in series the loop that generates electricity by way of merging two or more grid systems, drive circuit, logic circuit, control circuit, the input of control circuit, output
Communication interface of boosting is also associated between end.The other parts of the present embodiment are same as the previously described embodiments, therefore repeat no more.
Embodiment 3：
The present embodiment does further optimization on the basis of above-described embodiment, as shown in Fig. 2 further, the grid-connected hair
Electrical circuit include be sequentially connected in series input protection switch, the first booster circuit, the second booster circuit, grid-connected switch, input protection
The output end of the input termination batch meter of switch, the output end of grid-connected switch and the input of utility grid connect；The driving
The input of first output termination input protection switch of circuit, the second output of drive circuit terminate the defeated of the first booster circuit
Enter end, the input of the 3rd output the second booster circuit of termination of drive circuit, the 4th output termination of drive circuit is grid-connected to be opened
The input of pass.The other parts of the present embodiment are same as the previously described embodiments, therefore repeat no more.
Embodiment 4：
The present embodiment does further optimization on the basis of above-described embodiment, as shown in Fig. 2 further, in the collection control
Pericardium includes control device and the monitoring assembly being connected respectively with control device, collection control communication interface, collection control communication interface and boosting
Communication interface is corresponding to be connected；The remote communication module being connected with power-management centre is integrated with the control device.This implementation
The other parts of example are same as the previously described embodiments, therefore repeat no more.
Embodiment 5：
The present embodiment does further optimization on the basis of above-described embodiment, and further, the monitoring assembly includes temperature
Sensor group, light radiation degree sensor group, Hall current sensor group, Hall voltage sensor group, frequency sensor group, heat
As leakage current sensor group, the first booster voltage detection circuit, the second booster voltage detection circuit, the second boosting phase-detection electricity
Road, grid-connected current detection circuit, power grid voltage detection circuit and power grid phase detection circuit；The temperature sensor group, illumination
Radiancy sensor group is arranged at the erecting bed of photovoltaic module；The Hall current sensor group, Hall voltage sensor
Group is separately positioned in controller for solar；The frequency sensor group, thermal imagery leakage current sensor group are separately positioned on inversion
In component；The first booster voltage detection circuit is connected with the first booster circuit；Second booster voltage detection circuit, the
Two boosting phase detecting circuits are connected with the second booster circuit respectively；The grid-connected current detection circuit connects with grid-connected switch；
The power grid voltage detection circuit, power grid phase detection circuit are connected with utility grid respectively.The other parts of the present embodiment with
Above-described embodiment is identical, therefore repeats no more.
Embodiment 6：
The present embodiment does further optimization on the basis of above-described embodiment, further, described and screen component also include with
Electrical control gear in the region of centralized control center's connection.The other parts of the present embodiment are same as the previously described embodiments, therefore no longer superfluous
State.
Embodiment 7：
The present embodiment does further optimization on the basis of above-described embodiment, and further, the controller for solar includes
Multiple MPPT modules and multiple diodes, solar battery group, MPPT modules, diode connect one to one successively, Duo Geshe
The MPPT modules for being equipped with direct current transducer are serially connected；The MPPT modules are provided with connect corresponding with the positive pole of solar battery group
The electrode input end and the negative input of connection corresponding with the negative pole of solar battery group connect, direct current transducer are provided with and two
The cathode output end of the corresponding connection of the negative electrode of pole pipe and the cathode output end of connection corresponding with the anode of diode.The present embodiment
Other parts are same as the previously described embodiments, therefore repeat no more.
Embodiment 8：
The present embodiment does further optimization on the basis of above-described embodiment, and further, the centralized control center gathers photovoltaic
In electricity generation system parameters and send carried out into increasing apparatus analyze judgement and drive increasing apparatus act, in particular to：
The data gathered in centralized control center by control device to monitoring assembly are handled, and are then connect by the collection control communication of interconnection
Mouthful, boosting communication interface the data after processing are sent to increasing apparatus, control circuit, logic circuit are to collection in increasing apparatus
Parameter carries out analysis judgement, and the action in the loop that generates electricity by way of merging two or more grid systems is controlled by drive circuit；Comprise the following steps that：
Step S1：The electric current that monitoring assembly gathers the output of solar control component by Hall current sensor group respectively is joined
Count, the voltage parameter of solar control component output is gathered by Hall voltage sensor group, gathered by frequency sensor group
The frequency parameter of inversion component output AC energy, circuit collection the first booster circuit output is detected by the first booster voltage
First boosting parameter, the second boosting parameter exported by the second booster voltage detection circuit the second booster circuit of collection, pass through
Second boosting phase detecting circuit gathers the phase parameter of the second booster circuit output AC energy, detects electricity by grid-connected current
Road gathers the grid-connected current parameter of grid-connected switch, gathers the voltage parameter of utility grid by power grid voltage detection circuit, passes through
Power grid phase detection circuit gathers the phase parameter of utility grid, and control device is integrated by gathered data or conversion process,
The data after processing are sent to increasing apparatus by collection control communication interface, the boosting communication interface of interconnection；
Step S2：Control circuit, logic circuit in increasing apparatus judge solar control component output current parameters,
Whether voltage parameter, the frequency parameter of inversion component output AC energy of solar control component output are normal, if all normal
Then control circuit output control signal and pass through drive circuit connect input protection switch, solar battery group output alternating current
Crimp in the loop that generates electricity by way of merging two or more grid systems, then control circuit output drive signal and start the first booster circuit by drive circuit
Work；Input protection switch and return to step S1 are disconnected if any one parameter is abnormal；
Step S3：Control circuit judges the first boosting parameter of the first booster circuit output whether in setting range, if
It is that output drive signal simultaneously makes the second booster circuit start working by drive circuit；If otherwise disconnect input protection circuit simultaneously
Return to step S1；
Step S4：Control circuit judges the second boosting parameter of the second booster circuit output and the voltage parameter of utility grid
Whether in setting range, while control circuit judges the phase parameter and civil power electricity of the second booster circuit output AC energy
The whether same phase of the phase parameter of net, if being all control circuit output control signal and by drive circuit close it is grid-connected switch make
Second booster circuit electrically connects with utility grid；Input protection circuit is disconnected if any one parameter is unsatisfactory for requiring and is returned
Step S1；
Step S5：Control circuit judges grid-connected current parameter whether in setting range, if then grid-connected switch holding is closed
Close and control circuit sends feedback signal, control by interconnected boosting communication interface, collection control communication interface to control device
Device processed is established with power-management centre by remote communication module and is remotely connected and passes through centralized control center by power-management centre
Remote control is carried out to utility grid grid-connected power supply to increasing apparatus, now, the electric energy of solar battery group conversion passes sequentially through
Lightning protection component, controller for solar, inversion component, batch meter, the alternating current for loop output of generating electricity by way of merging two or more grid systems are coupled to utility grid
Grid-connected power supply is carried out, grid-connected switch and return to step S1 are disconnected if grid-connected current parameter is not in setting range；
Step S6：During grid-connected power supply, if control circuit judges that any one parameter of monitoring assembly collection goes out
Now abnormal, then output control signal disconnects input protection switch, grid-connected switch and return to step S1, stops grid-connected power supply.
The other parts of the present embodiment are same as the previously described embodiments, therefore repeat no more.
It is described above, be only presently preferred embodiments of the present invention, any formal limitation not done to the present invention, it is every according to
Any simply modification, the equivalent variations made according to the technical spirit of the present invention to above example, each fall within the protection of the present invention
Within the scope of.
Claims (1)
1. the grid-connected control method of photovoltaic generating system, it is characterised in that：By small-power, distributed solar energy battery pack interconnection collection
In it is grid-connected and receive power-management centre scheduling and carry out grid-connected power supply；Detailed process is：Each solar battery group is by conversion
Direct current energy pass through corresponding to lightning protection device, corresponding to controller for solar access in inverter, solar battery group conversion it is straight
Electric energy is flowed through controller for solar with maximum power output, and elder generation is charged to batteries, inverse after the completion of battery charging
Become industrial frequency AC electric energy of the device by direct current energy inversion into 380V, and distributed by batch meter to local power distribution cabinet or grid-connected group
Part, centralized control center gather parameters and transmission in photovoltaic generating system and carry out analyzing judgement into increasing apparatus and drive boosting
Device action, power-management centre, which is sent, if all parameters are normal implements the instruction of grid-connected power supply and makes increasing apparatus and civil power
Power network connects, and increasing apparatus disconnects with utility grid if having parameter abnormal；
Parameters and transmission are carried out analyzing judgement and driven into increasing apparatus in centralized control center's collection photovoltaic generating system
Dynamic increasing apparatus action, in particular to：The data gathered in centralized control center by control device to monitoring assembly are handled, then
The data after processing are sent to increasing apparatus, increasing apparatus by collection control communication interface, the boosting communication interface of interconnection
Middle control circuit, logic circuit carry out analysis judgement to acquisition parameter, and control the dynamic of the loop that generates electricity by way of merging two or more grid systems by drive circuit
Make；Comprise the following steps that：
Step S1：Monitoring assembly respectively by Hall current sensor group gather current parameters that solar control component exports,
The voltage parameter of solar control component output is gathered by Hall voltage sensor group, inversion is gathered by frequency sensor group
The frequency parameter of component output AC energy, the first of circuit collection the first booster circuit output is detected by the first booster voltage
Boosting parameter, the second boosting parameter exported by the second booster voltage detection circuit the second booster circuit of collection, pass through second
Boosting phase detecting circuit gathers the phase parameter of the second booster circuit output AC energy, adopted by grid-connected current detection circuit
Collect the grid-connected current parameter of grid-connected switch, the voltage parameter of utility grid is gathered by power grid voltage detection circuit, passes through power network
Phase detecting circuit gathers the phase parameter of utility grid, and control device is integrated by gathered data or conversion process, passes through
Collection control communication interface, the boosting communication interface of interconnection send the data after processing to increasing apparatus；
Step S2：Control circuit, logic circuit in increasing apparatus judge the current parameters of solar control component output, the sun
Can control assembly output voltage parameter, the frequency parameter of inversion component output AC energy it is whether normal, controlled if all normal
Circuit output control signal processed simultaneously connects input protection switch, the alternating current crimping of solar battery group output by drive circuit
Enter in the loop that generates electricity by way of merging two or more grid systems, then control circuit output drive signal and the first booster circuit is started work by drive circuit
Make；Input protection switch and return to step S1 are disconnected if any one parameter is abnormal；
Step S3：Control circuit judges the first boosting parameter of the first booster circuit output whether in setting range, if then
Output drive signal simultaneously makes the second booster circuit start working by drive circuit；If otherwise disconnect input protection circuit and return
Step S1；
Step S4：Control circuit judge the second booster circuit output second boosting parameter and utility grid voltage parameter whether
In setting range, while control circuit judges the phase parameter and utility grid of second booster circuit output AC energy
The whether same phase of phase parameter, if being all control circuit output control signal and by drive circuit close it is grid-connected switch make second
Booster circuit electrically connects with utility grid；Input protection circuit and return to step are disconnected if any one parameter is unsatisfactory for requiring
S1；
Step S5：Control circuit judges grid-connected current parameter whether in setting range, if then it is grid-connected switch remain closed and
Control circuit sends feedback signal, control dress by interconnected boosting communication interface, collection control communication interface to control device
Put by remote communication module and power-management centre establish it is long-range be connected and by power-management centre by centralized control center to liter
Pressure device carries out remote control to the grid-connected power supply of utility grid, and now, the electric energy of solar battery group conversion passes sequentially through lightning protection
Component, controller for solar, inversion component, batch meter, the alternating current for loop output of generating electricity by way of merging two or more grid systems are carried out coupled to utility grid
Grid-connected power supply, grid-connected switch and return to step S1 are disconnected if grid-connected current parameter is not in setting range；
Step S6：During grid-connected power supply, if control circuit judges that any one parameter appearance of monitoring assembly collection is different
Often, then output control signal disconnects input protection switch, grid-connected switch and return to step S1, stops grid-connected power supply.
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| WO2018068164A1 (en) * | 2016-10-14 | 2018-04-19 | 徐春艳 | Photovoltaic power generation method and system |
| CN111308966B (en) * | 2019-11-05 | 2021-06-22 | 光大环保技术研究院（南京）有限公司 | Emergency emission supervision system, analysis system and user terminal equipment for waste incineration power generation |
| CN113666372A (en) * | 2021-09-18 | 2021-11-19 | 江苏亿万物联科技有限公司 | Method for preparing carbon dioxide by introducing photovoltaic electric energy into chemical industry |
| CN117039978A (en) * | 2023-06-28 | 2023-11-10 | 中国水利水电科学研究院 | Application system and method of solar photovoltaic power generation in traditional power plant |
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| CN102355004A (en) * | 2011-09-20 | 2012-02-15 | 浙江工业大学 | Distributed photovoltaic power generation regional integrated control system |
| CN102545257A (en) * | 2012-01-12 | 2012-07-04 | 广东中商国通电子有限公司 | Solar photovoltaic generating single-phase grid-connected inverter and control method thereof |
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| CN205070454U (en) * | 2015-09-30 | 2016-03-02 | 四川海天环保能源有限公司 | Waste incineration power plant's photovoltaic power generation system |
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| CN102545257A (en) * | 2012-01-12 | 2012-07-04 | 广东中商国通电子有限公司 | Solar photovoltaic generating single-phase grid-connected inverter and control method thereof |
| CN204145408U (en) * | 2014-08-19 | 2015-02-04 | 上海金友光伏科技有限公司 | Photovoltaic generating system with confluxing, inversion, boosting monitoring metering integrated device |
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