CN202474862U - Active fully-compensated arc extinguishing coil apparatus - Google Patents

Active fully-compensated arc extinguishing coil apparatus Download PDF

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Publication number
CN202474862U
CN202474862U CN2011204260442U CN201120426044U CN202474862U CN 202474862 U CN202474862 U CN 202474862U CN 2011204260442 U CN2011204260442 U CN 2011204260442U CN 201120426044 U CN201120426044 U CN 201120426044U CN 202474862 U CN202474862 U CN 202474862U
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China
Prior art keywords
arc extinguishing
arc suppression
suppression coil
extinguishing coil
active
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Expired - Fee Related
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CN2011204260442U
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Chinese (zh)
Inventor
李晓波
袁朋生
孟献仪
程玉凯
李琦
薛馨
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XUZHOU RUNZE ELECTRIC Co Ltd
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XUZHOU RUNZE ELECTRIC Co Ltd
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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

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Abstract

The utility model discloses an active fully-compensated arc extinguishing coil apparatus, belonging to the field of electrical power system, comprising an arc extinguishing coil primary winding L0, arc extinguishing coil secondary windings L1, L2, L3 and L4, bidirectional thyristors SC1, SC2, SC3 and SC4, and an inverting unit DC side power supply Ud, wherein an IDBT and diodes V1, V2, V3 and V4 form an inverting unit, the extinguishing coil secondary windings L1, L2, L3 and L4 are respectively connected with the bidirectional thyristors SC1, SC2, SC3 and SC4 in parallel to form a phase control electric reactor, and an arc extinguishing coil secondary winding L5 is connected with the inverting unit in parallel to form an active tracking inverting apparatus. The active fully-compensated arc extinguishing coil apparatus has the beneficial effects of performing dynamic compensation stepless regulation on reactive components, active components and harmonic wave components in a residual current, and being excellent in regulation speed and adaptability.

Description

The arc suppression coil device of active full compensation
Technical field
The utility model relates to a kind of arc suppression coil device product, relates in particular to a kind of arc suppression coil device of active full compensation, belongs 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
Problem to above-mentioned prior art existence; The utility model 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 utility model 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 phase control type reactor, arc suppression coil secondary winding L5 and inversion unit compose in parallel active tracking inverter.
Said inversion unit DC side power supply U dParallelly connected with inversion unit.
The beneficial effect of the utility model is: 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 the schematic diagram of the utility model;
Neutral point was through the circuit diagram of the grounding through arc of active full compensation when Fig. 2 was the utility model generation single phase ground fault;
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 utility model is described further below.
As shown in Figure 1, the utility model 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 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 in the utility model 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;
Figure 733665DEST_PATH_IMAGE001
is the electrical network residual voltage;
Figure 598853DEST_PATH_IMAGE002
is the A phase voltage;
Figure 268868DEST_PATH_IMAGE003
is the equivalent reactance of secondary side controlled reactor;
Figure 852296DEST_PATH_IMAGE004
is the arc suppression coil device zero sequence excitation reactance of active full compensation;
Figure 164329DEST_PATH_IMAGE005
is the relatively total insulation resistance of electrical network three;
Figure 680761DEST_PATH_IMAGE006
is electrical network three total distributed capacitance relatively;
Figure 990520DEST_PATH_IMAGE007
is the earth point transition resistance; L is the out put reactor equivalent reactance,
Figure 592402DEST_PATH_IMAGE008
be the voltage of the controllable voltage source of inversion unit equivalence.
Regulating arc suppression coil equivalent reactance
Figure 176967DEST_PATH_IMAGE003
through the angle of flow of control bidirectional thyristor SC1 ~ SC4 makes itself and
Figure 547906DEST_PATH_IMAGE004
and that resonance take place just; Then making fundamental reactive component is zero, that is:
Figure 852165DEST_PATH_IMAGE010
If the inverter equivalence becomes controllable voltage source
Figure 709263DEST_PATH_IMAGE011
, then the electric current on the output reactance L is:
Figure 934708DEST_PATH_IMAGE012
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 phase control type reactor (1), arc suppression coil secondary winding L5 and inversion unit compose in parallel active tracking inverter (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.
CN2011204260442U 2012-05-18 2012-05-18 Active fully-compensated arc extinguishing coil apparatus Expired - Fee Related CN202474862U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011204260442U CN202474862U (en) 2012-05-18 2012-05-18 Active fully-compensated arc extinguishing coil apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011204260442U CN202474862U (en) 2012-05-18 2012-05-18 Active fully-compensated arc extinguishing coil apparatus

Publications (1)

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CN202474862U true CN202474862U (en) 2012-10-03

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103280793A (en) * 2013-04-17 2013-09-04 河北旭辉电气股份有限公司 Electric network grounding compensation device based on arc suppression transformer
CN109980624A (en) * 2019-04-02 2019-07-05 云南电网有限责任公司电力科学研究院 A kind of full compensation implementation method of controllable current source cooperation preset arc suppression coil
CN115693630A (en) * 2023-01-05 2023-02-03 国网山西省电力公司朔州供电公司 Mixed arc quenching system based on split winding and working method thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103280793A (en) * 2013-04-17 2013-09-04 河北旭辉电气股份有限公司 Electric network grounding compensation device based on arc suppression transformer
CN109980624A (en) * 2019-04-02 2019-07-05 云南电网有限责任公司电力科学研究院 A kind of full compensation implementation method of controllable current source cooperation preset arc suppression coil
CN109980624B (en) * 2019-04-02 2020-11-17 云南电网有限责任公司电力科学研究院 Full compensation implementation method for matching controllable current source with pre-adjusted arc suppression coil
CN115693630A (en) * 2023-01-05 2023-02-03 国网山西省电力公司朔州供电公司 Mixed arc quenching system based on split winding and working method thereof
CN115693630B (en) * 2023-01-05 2023-04-25 国网山西省电力公司朔州供电公司 Hybrid arc extinguishing system based on split winding and working method thereof

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Granted publication date: 20121003

Termination date: 20130518