CN202495771U - Active full-compensation arc-suppression coil device - Google Patents
Active full-compensation arc-suppression coil device Download PDFInfo
- Publication number
- CN202495771U CN202495771U CN2012201240598U CN201220124059U CN202495771U CN 202495771 U CN202495771 U CN 202495771U CN 2012201240598 U CN2012201240598 U CN 2012201240598U CN 201220124059 U CN201220124059 U CN 201220124059U CN 202495771 U CN202495771 U CN 202495771U
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- Prior art keywords
- suppression coil
- arc
- compensation
- arc suppression
- active full
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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
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
-
- 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
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/40—Arrangements for reducing harmonics
Abstract
The utility model discloses an active full-compensation arc-suppression coil device, belonging to the field of power systems. The active full-compensation arc-suppression coil device comprises an arc-suppression coil primary winding L0, arc-suppression coil secondary windings of L1, L2, L3 and L4, bidirectional thyristors of SC2, SC1, SC3 and SC4 and an inverter unit DC side power supply of Ud. The inverter unit is composed of an IGBT and diodes of V1, V2, V3 and V4. The arc-suppression coil secondary windings of L1, L2, L3 and L4 are in parallel with the bidirectional thyristors of SC1, SC2, SC3 and SC4 respectively to form a controllable electric reactor. An arc-suppression coil secondary winding of L5 is in parallel with the inverter unit to form a load. The active full-compensation arc-suppression coil device of the utility model is advantaged in that: the device is capable of realizing stepless adjustment of dynamic compensation of a reactive component, an active component and a harmonic component in residual current with high adjustment speed and good adaptability.
Description
Technical field
The present invention relates to a kind of arc suppression coil device product, relate in particular to a kind of arc suppression coil device of active full compensation, belong to field of power.
Background technology
Traditional automatic tracking and compensating arc distinction coil mostly can only compensation of ground fault point residual flow fundamental reactive component, can not the real component harmonic component in the residual flow effectively be compensated.Along with the expansion of China's urban power distribution network scale, real component in the earth fault residual flow and harmonic component are also improving constantly.When system's generation single phase ground fault, only compensate the fail safe that idle component in the residual flow can not satisfy current power distribution network, real component in the residual flow of fault point and harmonic component still can make electric arc keep, thereby accident is further enlarged.
This technical field also has some patents at present; Like number of patent application 200410010260.3 " controlled reactor "; Thereby through regulating the permeability of Circuit Fault on Secondary Transformer electric current perunit value change transformer core, make the equiva lent impedance of transformer adjustable continuously, self can not bring Harmonic Interference for electrical network; Can compensating reactive power, filtering harmonic, but do not consider compensation to real component in the residual flow.Number of patent application 00206677.7 " quick adjustment arc suppression coil device "; Through regulating equivalent inductance and the direct-to-ground capacitance generation resonance that the silicon controlled trigger angle makes arc suppression coil; Capacitive reactive power electric current with compensation of ground point; It adopts a plurality of windings to constitute the adjustable range increase that continuous regulative mode makes arc suppression coil, thereby makes the harmonic component of tiding over arc suppression coil less, but it also reckons without the compensation to real component in the residual flow.
Summary of the invention
To the problem that above-mentioned prior art exists, the present invention provides a kind of arc suppression coil device of active full compensation, has realization to the step-less adjustment of idle component, real component and harmonic component dynamic compensation, the effect that governing speed is fast, adaptability is good are arranged in the residual flow.
To achieve these goals; The technical scheme that the present invention adopts is: a kind of arc suppression coil device of active full compensation comprises winding L 0 of arc suppression coil, arc suppression coil secondary winding L1, L2, L3, L4; Bidirectional thyristor SC1, SC2, SC3, SC4, inversion unit DC side power supply U
dSaid IGBT and diode V1, V2, V3, V4 form inversion unit; Arc suppression coil secondary winding L1, L2, L3, L4 respectively with bidirectional thyristor SC1, SC2, SC3, the parallelly connected formation of SC4 controlled reactor, arc suppression coil secondary winding L5 and inversion unit compose in parallel load.
Said inversion unit DC side power supply U
dParallelly connected with inversion unit.
The invention has the beneficial effects as follows: can realize that governing speed is fast, adaptability good to the step-less adjustment of idle component, real component and harmonic component dynamic compensation is arranged in the residual flow.
Description of drawings
Fig. 1 is a schematic diagram of the present invention;
Fig. 2 during for generation single phase ground fault of the present invention neutral point through the circuit diagram of the grounding through arc of active full compensation;
Fig. 3 is the equivalent circuit diagram of Fig. 2.
Among the figure: 1, phase control type reactor, 2, active tracking inverter.
Embodiment
To combine accompanying drawing that the present invention is described further below.
As shown in Figure 1, the present invention includes winding L 0 of arc suppression coil, arc suppression coil secondary winding L1, L2, L3, L4, bidirectional thyristor SC1, SC2, SC3, SC4, inversion unit DC side power supply U
dSaid IGBT and diode V1, V2, V3, V4 form inversion unit; It is characterized in that; Arc suppression coil secondary winding L1, L2, L3, L4 are respectively with bidirectional thyristor SC1, SC2, SC3, the parallelly connected formation of SC4 can be to the phase control type reactor of reactive-current compensation, and arc suppression coil secondary winding L5 and inversion unit compose in parallel can be to the active tracking inverter of harmonic wave and active current compensation; Inversion unit DC side power supply U
dParallelly connected with inversion unit.
A winding among the present invention is as main sense; Secondary winding adopts many winding types structure; Arc suppression coil secondary winding L1, L2, L3, L4 respectively with bidirectional thyristor SC1, SC2, SC3, the parallelly connected formation of SC4 controlled reactor 1; The angle of flow through control bidirectional thyristor SC1, SC2, SC3, SC4 is regulated the arc suppression coil equivalent reactance, with the fundamental reactive component in the compensation residual flow; Another secondary winding L5 connects inversion unit as its load 2; Inversion unit can equivalence become a controllable voltage source; The voltage that adopts the mode of active injection to change this controllable voltage source can generate needed offset current, to accomplish the compensation to real component in the residual flow and harmonic component.
Like accompanying drawing 2, shown in Figure 3;
is the electrical network residual voltage;
is the A phase voltage;
is the equivalent reactance of secondary side controlled reactor;
is the arc suppression coil device zero sequence excitation reactance of active full compensation;
is the relatively total insulation resistance of electrical network three;
is electrical network three total distributed capacitance relatively;
is the earth point transition resistance; L is the out put reactor equivalent reactance,
be the voltage of the controllable voltage source of inversion unit equivalence.Regulating arc suppression coil equivalent reactance
through the angle of flow of control bidirectional thyristor SC1 ~ SC4 makes itself and
and
that resonance take place just; Then making fundamental reactive component is zero, that is:
If the inverter equivalence becomes controllable voltage source
, then the electric current on the output reactance L is:
Size and phase place through changing controllable voltage source voltage can be regulated the required output current of active arc suppression coil, can realize the compensation to real component in the residual flow and harmonic component, the final The optimal compensation that realizes residual flow.
Claims (2)
1. the arc suppression coil device of an active full compensation comprises winding L 0 of arc suppression coil, arc suppression coil secondary winding L1, L2, L3, L4, bidirectional thyristor SC1, SC2, SC3, SC4, inversion unit DC side power supply U
dSaid IGBT and diode V1, V2, V3, V4 form inversion unit; It is characterized in that; Arc suppression coil secondary winding L1, L2, L3, L4 respectively with bidirectional thyristor SC1, SC2, SC3, the parallelly connected formation of SC4 controlled reactor (1), arc suppression coil secondary winding L5 and inversion unit compose in parallel load (2).
2. the arc suppression coil device of a kind of active full compensation according to claim 1 is characterized in that, said inversion unit DC side power supply U
dParallelly connected with inversion unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201240598U CN202495771U (en) | 2012-03-29 | 2012-03-29 | Active full-compensation arc-suppression coil device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201240598U CN202495771U (en) | 2012-03-29 | 2012-03-29 | Active full-compensation arc-suppression coil device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202495771U true CN202495771U (en) | 2012-10-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201240598U Expired - Fee Related CN202495771U (en) | 2012-03-29 | 2012-03-29 | Active full-compensation arc-suppression coil device |
Country Status (1)
| Country | Link |
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| CN (1) | CN202495771U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103474979A (en) * | 2013-08-28 | 2013-12-25 | 徐州润泽电气有限公司 | Arc suppression coil device of active and full compensation |
| CN104319757A (en) * | 2014-11-13 | 2015-01-28 | 中国矿业大学 | Arc suppression coil device and method for compensating for active component in single-phase grounding fault current |
| CN113422369A (en) * | 2021-07-29 | 2021-09-21 | 湖南大学 | Optimized operation and control method of fault flexible arc extinction and power quality regulation and control composite system |
| CN113422368A (en) * | 2021-07-29 | 2021-09-21 | 湖南大学 | Multifunctional grid-connected converter with single-phase earth fault regulation and control and reactive compensation capabilities |
-
2012
- 2012-03-29 CN CN2012201240598U patent/CN202495771U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103474979A (en) * | 2013-08-28 | 2013-12-25 | 徐州润泽电气有限公司 | Arc suppression coil device of active and full compensation |
| CN104319757A (en) * | 2014-11-13 | 2015-01-28 | 中国矿业大学 | Arc suppression coil device and method for compensating for active component in single-phase grounding fault current |
| CN104319757B (en) * | 2014-11-13 | 2017-06-06 | 中国矿业大学 | The arc suppression coil device and method of active component in compensation single-phase earth fault current |
| CN113422369A (en) * | 2021-07-29 | 2021-09-21 | 湖南大学 | Optimized operation and control method of fault flexible arc extinction and power quality regulation and control composite system |
| CN113422368A (en) * | 2021-07-29 | 2021-09-21 | 湖南大学 | Multifunctional grid-connected converter with single-phase earth fault regulation and control and reactive compensation capabilities |
| CN113422369B (en) * | 2021-07-29 | 2022-05-06 | 湖南大学 | Optimized operation and control method of fault flexible arc extinction and power quality regulation and control composite system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 221116 Jiangsu province Xuzhou city Copper Mt. District Dongsheng Silver Hill Road Science and technology building A Patentee after: Jiangsu Guangzhi Electric Co., Ltd. Address before: 221116 Jiangsu province Xuzhou city Copper Mt. District Dongsheng Silver Hill Road Science and technology building A Patentee before: Xuzhou Runze Electric Co., Ltd. |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Arc suppression coil device of active and full compensation Effective date of registration: 20191218 Granted publication date: 20121017 Pledgee: Xuzhou Productivity Promotion Center Pledgor: Jiangsu Guangzhi Electric Co., Ltd. Registration number: Y2019320000374 |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121017 Termination date: 20210329 |