CN110429806A - A kind of wind-force generating converter is soft to open charging circuit - Google Patents
A kind of wind-force generating converter is soft to open charging circuit Download PDFInfo
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- CN110429806A CN110429806A CN201910619438.0A CN201910619438A CN110429806A CN 110429806 A CN110429806 A CN 110429806A CN 201910619438 A CN201910619438 A CN 201910619438A CN 110429806 A CN110429806 A CN 110429806A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/345—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering using capacitors as storage or buffering devices
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/36—Means for starting or stopping converters
-
- 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
- Y02E10/70—Wind energy
- Y02E10/76—Power conversion electric or electronic aspects
Abstract
Charging circuit is opened the invention discloses a kind of wind-force generating converter is soft, increase rectifier bridge Q1 newly in the charging circuit, so that charge circuit has skipped Cac capacitor, it charges directly to busbar voltage, when busbar voltage is full of, again by software control IGBT inverter voltage send out wave give Cac capacitor charging, when Cac charge to grid voltage amplitude and phase it is close when, can closure switch K1.Compared with the prior art, the present invention has the following advantages: since charging circuit does not have to the electric current of carrying Cac capacitor, therefore electric current is more much smaller than conventional charging circuit, the amplitude of charging current and impact are all much lower compared to traditional circuit electric current, therefore reliability is improved, capacity type selecting also can accordingly reduce.
Description
Technical field
The present invention relates to wind-force generating converter fields, and in particular to and a kind of wind-force generating converter is soft to open charging circuit,
It increases rectifier bridge Q1 newly in the charging circuit, so that charge circuit has skipped Cac capacitor, charges directly to busbar voltage, when
When busbar voltage is full of, then wave is sent out by software control IGBT inverter voltage and gives Cac capacitor charging, when Cac is charged to and power grid
When voltage magnitude and phase are close, can closure switch K1, since charging circuit does not have to the electric current of carrying Cac capacitor, therefore electric current
More much smaller than conventional charging circuit, the amplitude of charging current and impact are all much lower compared to traditional circuit electric current, therefore reliability
It is improved, capacity type selecting also can accordingly reduce.
Background technique
Currently, breaker or contactless contactor K1 are connected in electric system current transformer, between current transformer and power grid, when
It when current transformer is run, will just close the switch, and since there are bus capacitors in current transformer, if switch K1 is directly closed, be closed wink
Between power grid rectified by the semiconductor devices IGBT inside current transformer and will have very big rush of current by closing to capacitor charging
The switch K1 and IGBT of conjunction cause switch K1 and semiconductor devices IGBT to damage.
Therefore it needs to pass through bus capacitor preliminary filling of the 690V power grid by current transformer in advance with a circuit before switch K1 closure
Electricity does not have heavy current impact when just can guarantee switch K1 closure, dc-link capacitance is charged to bus to DC bus-bar voltage
The circuit of voltage is known as bus capacitor charging circuit, and traditional charging circuit is (as shown in Figure 1) for again in the side parallel connection one of K1
The switch K2 of a low capacity forms the charging circuit of bus capacitor with and with the K2 current-limiting resistance R, K2 that connect and current-limiting resistance R,
Charging principle are as follows: power grid charges to bus capacitor by K2 closure and the circuit of current-limiting resistance R, due to the current limliting of limited leakage resistance
Effect, so that the electric current for flowing through K2 is very small, the capacity of K2 is small more than K1, and cost is also much lower, and K2 is disconnected after charging complete, together
When IGBT inverter voltage give Cac capacitor charging, when Cac phase and amplitude reach network voltage it is identical when, reclose K1, current transformer
It can be incorporated into the power networks.For current-limiting resistance R since resistance value is big, power is small cannot to pass through electric current for a long time, therefore cannot be by current limliting electricity
Resistance R connects to form charging circuit with K1, and charging circuit can only be made up of K2 and R, and charging complete is disconnected and being stopped working；Due to
There is the presence of Cac capacitor, this charging circuit has also flowed through the capacitance current of Cac when charging to Cdc, when Cac capacitance ratio
When larger, the circuit for flowing through the circuit current-limiting resistance R and K2 will be very big, and the power and type selecting of resistance R and switch K2 will all increase
Greatly, charging circuit due to charging times it is more frequent, when charging current is very big, the life and reliability of resistance R and switch K2
It will substantially reduce.
Summary of the invention
In order to solve above-mentioned technological deficiency of the existing technology, the invention proposes a kind of novel wind power generation current-transformations
Device is soft to open charging circuit, and the charging circuit in the present invention is the conventional charging circuit more than being different from, the principle of the circuit are as follows: adopt
Charging circuit is constituted with low capacity switch K2 and low capacity rectifier bridge Q1 and 2 current-limiting resistance R.Wherein three-phase electricity is by opening
Close the exchange end of K2 access rectifier bridge Q1, the positive and negative anodes of the DC terminal of rectifier bridge respectively connect a current-limiting resistance, current-limiting resistance it is another
The positive and negative anodes of the bus capacitor of current transformer are accessed in outer one end again.
For achieving the above object, the present invention adopts the following technical scheme that:
A kind of wind-force generating converter is soft to open charging circuit, including switch K1, switch K2, charging resistor R, rectifier bridge Q1,
Ac filter capacitor Cac, filter inductance L, current transformer bus capacitor Cdc, current transformer controllable semiconductor switch device IGBT, institute
The switch K1 stated includes switch K11, switch K12, switch K13, the switch K2 includes switch K21, switch K22, switch K23, institute
Stating charging resistor R includes charging resistor R1, charging resistor R2, charging resistor R3, the filter inductance L includes filter inductance
L1, filter inductance L2, filter inductance L3, current transformer controllable semiconductor switch device IGBT is by first group of IGBT, second group
IGBT, third group IGBT composition, first group of IGBT be connected by the emitter of No. 1 IGBT and the collector of No. 2 IGBT and
The cascaded structure of composition, second group of IGBT are connected by the emitter of No. 3 IGBT and the collector of No. 4 IGBT and are formed
Cascaded structure, the third group IGBT are connected by the emitter of No. 5 IGBT and the collector of No. 6 IGBT and the tandem junction that forms
Structure, the current transformer bus capacitor Cdc anode are connected with the anode of DC power supply DC, the current transformer bus capacitor Cdc cathode
Pole is connected with the cathode of DC power supply DC；
The collector of No. 1 IGBT is connected with the current transformer bus capacitor Cdc anode, the transmitting of No. 2 IGBT
Pole is connected with the current transformer bus capacitor Cdc cathode, the filter inductance L1One end and No. 1 IGBT collector
It is connected, the filter inductance L1The other end simultaneously with the ac filter capacitor Cac and the switch K11One end be connected,
The switch K11The other end simultaneously with the switch K21One end be connected with 690V power grid, the switch K21The other end with
The charging resistor R1One end be connected, the charging resistor R1The other end be connected with the rectifier bridge Q1；
The collector of No. 3 IGBT is connected with the current transformer bus capacitor Cdc anode, the transmitting of No. 4 IGBT
Pole is connected with the current transformer bus capacitor Cdc cathode, the filter inductance L2One end and No. 3 IGBT collector
It is connected, the filter inductance L2The other end simultaneously with the ac filter capacitor Cac and the switch K12One end be connected,
The switch K12The other end simultaneously with the switch K22One end be connected with 690V power grid, the switch K22The other end with
The charging resistor R2One end be connected, the charging resistor R2The other end be connected with the rectifier bridge Q1；
The collector of No. 5 IGBT is connected with the current transformer bus capacitor Cdc anode, the transmitting of No. 6 IGBT
Pole is connected with the current transformer bus capacitor Cdc cathode, the filter inductance L3One end and No. 5 IGBT collector
It is connected, the filter inductance L3The other end simultaneously with the ac filter capacitor Cac and the switch K13One end be connected,
The switch K13The other end simultaneously with the switch K23One end be connected with 690V power grid, the switch K23The other end with
The charging resistor R3One end be connected, the charging resistor R3The other end be connected with the rectifier bridge Q1；
One end of the rectifier bridge Q1 is connected with the anode of the DC power supply DC, the other end of the rectifier bridge Q1 and institute
The cathode for stating DC power supply DC is connected.
Preferably, the rectifier bridge Q1 is made of first group of diode, second group of diode, third group diode.
Preferably, first group of diode is to be connected and group by the anode of No. 1 diode with the cathode of No. 2 diodes
At cascaded structure, second group of diode be connected by the anode of No. 3 diodes and the cathode of No. 4 diodes and formed
Cascaded structure, the third group diode are connected by the anode of No. 5 diodes and the cathode of No. 6 diodes and the series connection that forms
Structure.
Preferably, preferably, the cathode of No. 1 diode is connected with the anode of the DC power supply DC, described 2
The anode of number diode is connected with the cathode of the DC power supply DC；The cathode and the DC power supply DC of No. 3 diodes
Anode be connected, No. 4 diodes anode be connected with the cathode of the DC power supply DC；The cathode of No. 5 diodes
It is connected with the anode of the DC power supply DC, the anode of No. 6 diodes is connected with the cathode of the DC power supply DC.
Preferably, the upper limit that the upper end of the riser guide panel seat of the clamping device is provided with clamping device is close
Switch；The lower end of the riser guide panel seat of the clamping device is provided with the close switch of lower limit of clamping device.
Compared with the prior art, the present invention has the following advantages: the charging circuit in the present invention makes charge circuit not have to warp
The Cac capacitor and IGBT of current transformer are crossed, the practical approach that quickly bus capacitor charges, since charging circuit does not have to carrying Cac
The electric current of capacitor, therefore electric current is more much smaller than conventional charging circuit, capacity type selecting also can accordingly reduce, and reliability is improved.
Charge circuit of the invention does not need to increase Cac capacitance current without cac capacitor, charging resistor and contactor
Capacity, K2 and charging resistor R can be greatly improved in device capacitance type selecting and on the access times service life, in conventional charging circuit
In, when charging, the momentary charge electric current of Cac and Cdc are all larger, and in charging process, the electric current of Cac can keep one it is fixed
Current value is constant, and the electric current of Cdc can reduce with the growth in charging time, for charging resistor R, is superimposed on resistance
The electric current of Cac and the electric current of Cdc, due to Cac electric current when always exist, and be a biggish current values, resistance R is flowing
When crossing Cac capacitance current, the power consumption of generation will be high, and fever is just serious, and the probability of resistance failure will be promoted, to current transformer
Reliability service just brings influence.
In charging circuit of the invention, due to having increased rectifier bridge Q1 newly, so that charge circuit has skipped Cac capacitor, directly
It charges to busbar voltage, when busbar voltage is full of, then wave is sent out by software control IGBT inverter voltage and gives Cac capacitor charging,
When Cac is charged to it is close with grid voltage amplitude and phase when, can closure switch K1, this charging circuit has the advantage that,
Charge circuit does not have to the electric current of carrying Cac capacitor, and the amplitude of charging current and impact are all much lower compared to traditional circuit electric current,
Therefore reliability is improved.
Detailed description of the invention
Fig. 1 is traditional charging circuit diagram；
Fig. 2, which is that the wind-force generating converter in the present invention is soft, opens charging circuit diagram.
Description of symbols:
1 is No. 5 diodes, and 2 be No. 6 diodes, and 3 be No. 3 diodes, and 4 be No. 1 diode, and 5 be No. 4 diodes, and 6 be 2
Number diode, 7 be No. 5 IGBT, and 8 be No. 3 IGBT, and 9 be No. 6 IGBT, and 10 be No. 4 IGBT, and 11 be No. 1 IGBT, and 12 be No. 2
IGBT。
Specific embodiment
Below with reference to Fig. 2, the present invention is described further with specific embodiment.
As shown in Fig. 2, a kind of wind-force generating converter is soft to open charging circuit, including switch K1, switch K2, charging resistor R,
Rectifier bridge Q1, ac filter capacitor Cac, filter inductance L, current transformer bus capacitor Cdc, current transformer controllable semiconductor switch device
Part IGBT, the switch K1 include switch K11, switch K12, switch K13, the switch K2 includes switch K21, switch K22、
Switch K23, the charging resistor R includes charging resistor R1, charging resistor R2, charging resistor R3, the filter inductance L includes filter
Wave device inductance L1, filter inductance L2, filter inductance L3, current transformer controllable semiconductor switch device IGBT by first group of IGBT,
Second group of IGBT, third group IGBT composition, first group of IGBT are the emitter and No. 2 IGBT (12) by No. 1 IGBT (11)
Collector be connected and form cascaded structure, second group of IGBT be by the emitter and No. 4 IGBT of No. 3 IGBT (8)
(10) collector is connected and the cascaded structure, the third group IGBT that form are by the emitter of No. 5 IGBT (7) and No. 6
The collector of IGBT (9) is connected and the cascaded structure of composition, and the current transformer bus capacitor Cdc anode and DC power supply DC are just
Extremely it is connected, the current transformer bus capacitor Cdc cathode pole is connected with the cathode of DC power supply DC；
The collector of No. 1 IGBT (11) is connected with the current transformer bus capacitor Cdc anode, No. 2 IGBT
(12) emitter is connected with the current transformer bus capacitor Cdc cathode, the filter inductance L1One end with described No. 1
The collector of IGBT (11) is connected, the filter inductance L1The other end simultaneously with the ac filter capacitor Cac and described
Switch K11One end be connected, the switch K11The other end simultaneously with the switch K21One end be connected with 690V power grid, it is described
Switch K21The other end and the charging resistor R1One end be connected, the charging resistor R1The other end and the rectifier bridge Q1
It is connected；
The collector of No. 3 IGBT (8) is connected with the current transformer bus capacitor Cdc anode, No. 4 IGBT (10)
Emitter be connected with the current transformer bus capacitor Cdc cathode, the filter inductance L2One end and No. 3 IGBT
(8) collector is connected, the filter inductance L2The other end simultaneously with the ac filter capacitor Cac and the switch K12
One end be connected, the switch K12The other end simultaneously with the switch K22One end be connected with 690V power grid, the switch K22
The other end and the charging resistor R2One end be connected, the charging resistor R2The other end be connected with the rectifier bridge Q1；
The collector of No. 5 IGBT (7) is connected with the current transformer bus capacitor Cdc anode, No. 6 IGBT (9)
Emitter be connected with the current transformer bus capacitor Cdc cathode, the filter inductance L3One end and No. 5 IGBT
(7) collector is connected, the filter inductance L3The other end simultaneously with the ac filter capacitor Cac and the switch K13
One end be connected, the switch K13The other end simultaneously with the switch K23One end be connected with 690V power grid, the switch K23
The other end and the charging resistor R3One end be connected, the charging resistor R3The other end be connected with the rectifier bridge Q1；
One end of the rectifier bridge Q1 is connected with the anode of the DC power supply DC, the other end of the rectifier bridge Q1 and institute
The cathode for stating DC power supply DC is connected.
Preferably, the rectifier bridge Q1 is made of first group of diode, second group of diode, third group diode.
Preferably, first group of diode is by the anode and the cathode phase of No. 2 diodes (6) of No. 1 diode (4)
Cascaded structure, the second group of diode even formed is by the anode and the cathode of No. 4 diodes (5) of No. 3 diodes (3)
Be connected and the cascaded structure, the third group diode that form be by No. 5 diodes (1) anode and No. 6 diodes (2) it is negative
The cascaded structure for being extremely connected and forming.
Preferably, preferably, the cathode of No. 1 diode (4) is connected with the anode of the DC power supply DC, institute
The anode for stating No. 2 diodes (6) is connected with the cathode of the DC power supply DC；The cathode of No. 3 diodes (3) and described straight
The anode of galvanic electricity source DC is connected, and the anode of No. 4 diodes (5) is connected with the cathode of the DC power supply DC；Described No. 5 two
The cathode of pole pipe (1) is connected with the anode of the DC power supply DC, anode and the DC power supply of No. 6 diodes (2)
The cathode of DC is connected.
Preferably, the upper limit that the upper end of the riser guide panel seat of the clamping device is provided with clamping device is close
Switch；The lower end of the riser guide panel seat of the clamping device is provided with the close switch of lower limit of clamping device.
When K2 closure, 690V network voltage charges to bus capacitor Cdc by K2, R and rectifier bridge Q1, works as Cdc
After voltage is full of, current transformer software control PWM sends out wave, so that IGBT inverter voltage charges to Cac again, when Cac charges to width
When value and phase are consistent with network voltage, it is closed K1, the soft of entire current transformer is completed and opens process.
Compared with the prior art, the present invention has the following advantages: the charging circuit in the present invention makes charge circuit not have to warp
The Cac capacitor and IGBT of current transformer are crossed, the practical approach that quickly bus capacitor charges, since charging circuit does not have to carrying Cac
The electric current of capacitor, therefore electric current is more much smaller than conventional charging circuit, capacity type selecting also can accordingly reduce, and reliability is improved.
Charge circuit of the invention does not need to increase Cac capacitance current without cac capacitor, charging resistor and contactor
Capacity, K2 and charging resistor R can be greatly improved in device capacitance type selecting and on the access times service life, in conventional charging circuit
In, when charging, the momentary charge electric current of Cac and Cdc are all larger, and in charging process, the electric current of Cac can keep one it is fixed
Current value is constant, and the electric current of Cdc can reduce with the growth in charging time, for charging resistor R, is superimposed on resistance
The electric current of Cac and the electric current of Cdc, due to Cac electric current when always exist, and be a biggish current values, resistance R is flowing
When crossing Cac capacitance current, the power consumption of generation will be high, and fever is just serious, and the probability of resistance failure will be promoted, to current transformer
Reliability service just brings influence.
In charging circuit of the invention, due to having increased rectifier bridge Q1 newly, so that charge circuit has skipped Cac capacitor, directly
It charges to busbar voltage, when busbar voltage is full of, then wave is sent out by software control IGBT inverter voltage and gives Cac capacitor charging,
When Cac is charged to it is close with grid voltage amplitude and phase when, can closure switch K1, this charging circuit has the advantage that,
Charge circuit does not have to the electric current of carrying Cac capacitor, and the amplitude of charging current and impact are all much lower compared to traditional circuit electric current,
Therefore reliability is improved.
The preferred technical solution of the present invention is only embodied in summary, and those skilled in the art is to some of them part institute
The some variations that may be made embody the principle of the present invention, all should be technology scope of the invention.
Claims (5)
1. a kind of wind-force generating converter is soft to open charging circuit, including switch K1, switch K2, charging resistor R, rectifier bridge Q1, friendship
Filter capacitor Cac, filter inductance L, current transformer bus capacitor Cdc are flowed, current transformer controllable semiconductor switch device IGBT is described
Switch K1 include switch K11, switch K12, switch K13, the switch K2 includes switch K21, switch K22, switch K23, described
Charging resistor R includes charging resistor R1, charging resistor R2, charging resistor R3, the filter inductance L includes filter inductance L1、
Filter inductance L2, filter inductance L3, current transformer controllable semiconductor switch device IGBT by first group of IGBT, second group of IGBT,
Third group IGBT composition, first group of IGBT are connected by the emitter of No. 1 IGBT and the collector of No. 2 IGBT and are formed
Cascaded structure, second group of IGBT are connected by the emitter of No. 3 IGBT and the collector of No. 4 IGBT and the tandem junction that forms
Structure, the third group IGBT are connected by the emitter of No. 5 IGBT and the collector of No. 6 IGBT and the cascaded structure that forms,
It is characterized in that, the current transformer bus capacitor Cdc anode is connected with the anode of DC power supply DC, the current transformer bus capacitor
Cdc cathode pole is connected with the cathode of DC power supply DC；
The collector of No. 1 IGBT is connected with the current transformer bus capacitor Cdc anode, the emitter of No. 2 IGBT with
The current transformer bus capacitor Cdc cathode is connected, the filter inductance L1One end and the collector phase of No. 1 IGBT
Even, the filter inductance L1The other end simultaneously with the ac filter capacitor Cac and the switch K11One end be connected, institute
State switch K11The other end simultaneously with the switch K21One end be connected with 690V power grid, the switch K21The other end and institute
State charging resistor R1One end be connected, the charging resistor R1The other end be connected with the rectifier bridge Q1；
The collector of No. 3 IGBT is connected with the current transformer bus capacitor Cdc anode, the emitter of No. 4 IGBT with
The current transformer bus capacitor Cdc cathode is connected, the filter inductance L2One end and the collector phase of No. 3 IGBT
Even, the filter inductance L2The other end simultaneously with the ac filter capacitor Cac and the switch K12One end be connected, institute
State switch K12The other end simultaneously with the switch K22One end be connected with 690V power grid, the switch K22The other end and institute
State charging resistor R2One end be connected, the charging resistor R2The other end be connected with the rectifier bridge Q1；
The collector of No. 5 IGBT is connected with the current transformer bus capacitor Cdc anode, the emitter of No. 6 IGBT with
The current transformer bus capacitor Cdc cathode is connected, the filter inductance L3One end and the collector phase of No. 5 IGBT
Even, the filter inductance L3The other end simultaneously with the ac filter capacitor Cac and the switch K13One end be connected, institute
State switch K13The other end simultaneously with the switch K23One end be connected with 690V power grid, the switch K23The other end and institute
State charging resistor R3One end be connected, the charging resistor R3The other end be connected with the rectifier bridge Q1；
One end of the rectifier bridge Q1 is connected with the anode of the DC power supply DC, the other end of the rectifier bridge Q1 and described straight
The cathode of galvanic electricity source DC is connected.
2. a kind of wind-force generating converter is soft as described in claim 1 opens charging circuit, it is characterised in that: the rectifier bridge
Q1 is made of first group of diode, second group of diode, third group diode.
3. a kind of wind-force generating converter is soft as described in claim 1 opens charging circuit, it is characterised in that: described first group
Diode be connected by the anode of No. 1 diode with the cathode of No. 2 diodes and form cascaded structure, second group of two pole
Pipe is by cascaded structure, the third group diode that the anode of No. 3 diodes is connected with the cathode of No. 4 diodes and is formed
The cascaded structure for being connected with the cathode of No. 6 diodes by the anode of No. 5 diodes and being formed.
4. a kind of wind-force generating converter is soft as described in claim 3 opens charging circuit, it is characterised in that: the charging electricity
Hinder R1The other end be connected with the anode of No. 1 diode；The charging resistor R2The other end and No. 3 diodes
Anode is connected；The charging resistor R3The other end be connected with the anode of No. 5 diodes.
5. a kind of wind-force generating converter is soft as described in claim 3 or 4 opens charging circuit, it is characterised in that: described No. 1
The cathode of diode is connected with the anode of the DC power supply DC, and the anode of No. 2 diodes is with the DC power supply DC's
Cathode is connected；The cathode of No. 3 diodes is connected with the anode of the DC power supply DC, No. 4 diodes anode with
The cathode of the DC power supply DC is connected；The cathode of No. 5 diodes is connected with the anode of the DC power supply DC, and described 6
The anode of number diode is connected with the cathode of the DC power supply DC.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910619438.0A CN110429806A (en) | 2019-07-10 | 2019-07-10 | A kind of wind-force generating converter is soft to open charging circuit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910619438.0A CN110429806A (en) | 2019-07-10 | 2019-07-10 | A kind of wind-force generating converter is soft to open charging circuit |
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| CN110429806A true CN110429806A (en) | 2019-11-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT202200007097A1 (en) * | 2022-04-11 | 2023-10-11 | Imer Int S P A | Device that can be used for the input stage of electronic equipment |
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| CN102222939A (en) * | 2011-06-28 | 2011-10-19 | 南车株洲电力机车研究所有限公司 | Grid-connected control method and device by utilizing grid-side converter of doubly-fed wind-driven generator set |
| CN102916437A (en) * | 2011-12-24 | 2013-02-06 | 许继集团有限公司 | Soft grid connection method of grid-connected converter |
| CN209593003U (en) * | 2018-12-11 | 2019-11-05 | 深圳市长昊机电有限公司 | A kind of double-feed current transformer and power electronic equipment |
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2019
- 2019-07-10 CN CN201910619438.0A patent/CN110429806A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102222939A (en) * | 2011-06-28 | 2011-10-19 | 南车株洲电力机车研究所有限公司 | Grid-connected control method and device by utilizing grid-side converter of doubly-fed wind-driven generator set |
| CN102916437A (en) * | 2011-12-24 | 2013-02-06 | 许继集团有限公司 | Soft grid connection method of grid-connected converter |
| CN209593003U (en) * | 2018-12-11 | 2019-11-05 | 深圳市长昊机电有限公司 | A kind of double-feed current transformer and power electronic equipment |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| IT202200007097A1 (en) * | 2022-04-11 | 2023-10-11 | Imer Int S P A | Device that can be used for the input stage of electronic equipment |
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