CN201797323U - Automatic capacitance-adjusting capacitor device - Google Patents
Automatic capacitance-adjusting capacitor device Download PDFInfo
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- CN201797323U CN201797323U CN2010205386212U CN201020538621U CN201797323U CN 201797323 U CN201797323 U CN 201797323U CN 2010205386212 U CN2010205386212 U CN 2010205386212U CN 201020538621 U CN201020538621 U CN 201020538621U CN 201797323 U CN201797323 U CN 201797323U
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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
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Abstract
The utility model discloses an automatic capacitance-adjusting capacitor device, which comprises an integrated parallel capacitor, an excitation-free adjusting switch, an electric controller and an automatic controller, wherein the integrated parallel capacitor comprises three phases of same capacitor units; the capacitor unit of each phase consists of a parallel capacitor set, a reactor and a discharge coil; the wire inlet end of the parallel capacitor set is connected in series with the reactor; the parallel capacitor set is connected in parallel with the discharge coil; and two parallel capacitors are in the parallel capacitor set, and the wire outlet ends of the capacitors are connected in series with different junctions of the excitation-free adjusting switch to form neutral points respectively. The secondary circuit of the excitation-free adjusting switch is connected with the electric controller, and the electric connector is connected with the automatic controller. The device overcomes the defect that the interior of the conventional integrated capacitor cannot automatically adjust the capacitance, automatically compensates reactive power of power circuits according to comprehensive judgment of power grid voltage and power factors, and solves the problems of reactive power overcompensation and under compensation.
Description
Technical field
The utility model belongs to the technical field of electric device, is specifically related to widely used reactive-load compensation capacitor in electric power system.
Background technology
Because the reactive power in the electric power system has taken the capacity of power supplying and distributing equipment, increased the loss of circuit, cause line voltage to descend, power factor reduces, have a strong impact on the economical operation of the quality of power supply and electrical network, from the angle of power consumer, reactive power can not in-situ balancing, visualize is that power factor is on the low side, and the reactive power impact of generation causes pressure drop of grid.Voltage fluctuation and flicker; A series of harmful effects such as the high order harmonic component that produces makes the line voltage distortion, thereby causes protective device malfunction, capacitor super-load overvoltage, and electric equipment loss increase, heating, insulation are easily aging.Along with development and national economy, each industry electric load all increases considerably, in the newly-increased load, load or burden without work has increased the electric power system loss, and the most box-like capacitor group of fixed set reactive power compensation modes that adopt in the transformer station of the present power distribution network of China, since lack idle regulating measure, bigger in the power factor fluctuation therebetween of power supply peak valley, and complementarity problem appearred mending and owing often.
Summary of the invention
The utility model provides a kind of automatic capacitor tuning type capacitor device, can realize the idle of automatic compensates electric circuit according to the synthetic determination to line voltage and power factor.
A kind of automatic capacitor tuning type capacitor device comprises: assembling shunt capacitor and the secondary circuit that is used for automatic capacity transfer control, wherein,
Described secondary circuit comprises no excitation regulation switch, electric controller and automatic controller, and described no excitation regulation switch is connected with described electric controller, and described electric controller connects described automatic controller;
Described assembling shunt capacitor comprises the capacitor unit that three-phase is identical, every phase capacitor unit is made of Shunt Capacitor Unit, reactor and discharge coil, described Shunt Capacitor Unit end of incoming cables and reactor are connected in series, described Shunt Capacitor Unit and discharge coil are connected in parallel, the capacitor that two parallel connections are arranged in the described Shunt Capacitor Unit, the outlet of each capacitor respectively with the different contacts of the no excitation regulation switch formation neutral point that is connected in series.
Described assembling shunt capacitor is linked in the described secondary circuit by no excitation regulation switch.
Described no excitation regulation switch is made up of the motor of driving switch and control gear break-make.
Described electric controller is made up of gear input module, gear output module and Executive Module.
Described automatic controller is made up of analog quantity modular converter, gear input module, logic judgment module and Executive Module.
Described secondary circuit is made up of no excitation regulation switch, electric controller, automatic controller, driving switch output cable, Electric Machine Control cable, primary voltage cable and inlet wire current cable.
In the described secondary circuit, the driving switch of described no excitation regulation switch links to each other with the gear input module of electric controller by the driving switch output cable, the gear output module of described electric controller links to each other with the gear input module of automatic controller by the driving switch output cable, described primary voltage links to each other with the analog quantity modular converter of automatic controller by described primary voltage cable, described inlet wire current links to each other with the analog quantity modular converter of automatic controller by described inlet wire current cable, the Executive Module of described automatic controller links to each other with an end of the Executive Module of electric controller by the Electric Machine Control cable, and the other end of the Executive Module of electric controller links to each other with the motor of no excitation regulation switch by the Electric Machine Control cable.
In the utility model, in the integrated capacitor group every phase capacitor unit all adopt the different contact of no excitation regulation switch respectively with Shunt Capacitor Unit in respective electrical container leading-out terminal connect and compose the neutral point of capacitor group, every phase capacitor unit is divided into two groups of combinations of forming three kinds of different capabilities through the break-make of no excitation regulation make and break contact.And control no excitation regulation switch by electric controller and realize that three gears switch.Adopt the no excitation regulation switch of electric controller control, with the electronic capacity transfer of transferring the files of electric controller; Simultaneously, use idle automatic controller detection of grid voltage, electric current, calculating active power, reactive power and power factor,, adopt automatic controller control electric controller to carry out capacity transfer by synthetic determination to line voltage and power factor.During capacity transfer, jump into wiretap earlier, cut off the electricity supply, adjust automatically the inner no excitation regulation switch of integrated capacitor, close service entrance switch again, recover to send to satisfying the gear that power factor requires.
Automatic capacitor tuning type capacitor device of the present utility model, overcome the existing integrated capacitor inside defective of capacity transfer automatically, according to synthetic determination to line voltage and power factor, automatically the compensates electric circuit is idle, realized the raising power factor, reduce line loss, guarantee power supply quality, solve idle overcompensation and undercompensation problem.
Description of drawings
Fig. 1 is the structural representation of the automatic capacitor tuning type capacitor device of the utility model;
Wherein, reactor L; Capacitor C1 C2; Fuse FU1 FU2; No excitation regulation K switch; Discharge coil TV; Electric controller DK; Automatic controller ZK.
Fig. 2 is the control connection schematic diagram of secondary circuit in the automatic capacitor tuning type capacitor device of the utility model;
Wherein, no excitation regulation K switch; Driving switch K1, K2, K3; Motor D 1, D2; Gear input module KI2; Gear output module KO; Executive Module ZX2; Analog quantity modular converter A/D; Gear input module KI1; Logic judgment module LOG; Executive Module ZX1; Inlet wire AC phase line voltage YMa, YMc; Inlet wire B phase current TAb.
Embodiment
Describe the utility model in detail below in conjunction with embodiment and accompanying drawing, but the utility model is not limited in this.
As shown in Figure 1, a kind of automatic capacitor tuning type capacitor device comprises: reactor L, capacitor C1 (including fuse FU1), capacitor C2 (including fuse FU2), no excitation regulation K switch, discharge coil TV, electric controller DK and automatic controller ZK.
Wherein, a contact series connection of capacitor C1 and no excitation regulation K switch constitutes a capacitor branch road, another contact series connection of capacitor C2 and no excitation regulation K switch constitutes another capacitor branch road, article two, the branch road parallel connection constitutes Shunt Capacitor Unit, Shunt Capacitor Unit and reactor L are connected in series, and Shunt Capacitor Unit and discharge coil TV are connected in parallel.One be in parallel capacitor group, a phase reactor L and discharge coil TV constitutes single-phase electricity container unit, and the capacitor unit that three-phase is identical constitutes assembling shunt capacitor.Assembling shunt capacitor is linked in the secondary circuit by no excitation regulation K switch.
As shown in Figure 2, secondary circuit is made up of no excitation regulation K switch, electric controller DK, automatic controller ZK, driving switch output cable, Electric Machine Control cable, inlet wire AC phase line voltage cables YMa, YMc and inlet wire B phase current cable TAb.Wherein, no excitation regulation K switch is made up of driving switch K1, K2, K3 and motor D 1, D2; Electric controller DK is made up of gear input module KI2, gear output module KO and Executive Module ZX2; Automatic controller ZK is by analog quantity modular converter A/D, gear input module KI1, logic judgment module LOG, and Executive Module ZX1 forms; Inlet wire AC phase line voltage YMa, YMc and inlet wire B phase current TAb constitute electric parameter.The driving switch K1 of no excitation regulation switch, K2, K3 links to each other with the gear input module KI2 of electric controller DK by the driving switch output cable, the gear output module KO of DK links to each other with the gear input module KI1 of automatic controller ZK by the driving switch output cable, inlet wire AC phase line voltage is by inlet wire AC phase line voltage cables YMa, YMc links to each other with the analog quantity A/D modular converter of automatic controller ZK, inlet wire B phase current links to each other with the analog quantity A/D modular converter of automatic controller ZK by inlet wire current TAb cable, the Executive Module ZX1 of automatic controller ZK links to each other with the end of the Executive Module ZX2 of electric controller DK by the Electric Machine Control cable, and the other end of the Executive Module ZX2 of electric controller DK is by the motor D 1 of Electric Machine Control cable with the K of no excitation regulation switch, D2 links to each other.
Because no excitation regulation K switch is connected with electric controller DK in the secondary circuit, realize monitoring and the adjusting of electric controller DK to gear; Simultaneously, electric controller DK links to each other with automatic controller ZK, automatic controller is gathered the AC phase line voltage, B phase current of inlet wire and the gear signal of the no excitation regulation switch that changed over to by electric controller, by analog quantity A/D modular converter carry out A/D conversion, logic judgment module LOG carries out logic determines, start Executive Module ZX1, Executive Module ZX2 by electric controller DK, automatically control the forward or reverse of no excitation regulation K switch motor D 1, D2, realize the electric capacity function of transferring the files, thereby realize the purpose of transferring the files.
Every phase capacitor unit all adopts no excitation regulation make and break contact to be connected with each capacitors in series in the Shunt Capacitor Unit respectively in the above-mentioned integrated capacitor group, and every phase capacitor unit is divided into two groups of three gears; And, realize transferring the files capacity transfer by the no excitation regulation switch of electric controller control; Simultaneously, use idle automatic controller detection of grid voltage, electric current, calculate active power, reactive power and power factor.During capacity transfer,, jump into wiretap, cut off the electricity supply, adjust automatically the inner no excitation regulation switch of integrated capacitor, close service entrance switch again, recover to send to satisfying the gear that power factor requires by synthetic determination to line voltage and power factor.
Above-mentioned automatic capacitor tuning type capacitor device; overcome the existing integrated capacitor inside defective of capacity transfer automatically; according to synthetic determination to line voltage and power factor; automatically the compensates electric circuit is idle; realized the raising power factor; reduce line loss, the protection power supply quality solves idle overcompensation and undercompensation problem.
Claims (6)
1. an automatic capacitor tuning type capacitor device is characterized in that, comprising: assembling shunt capacitor and the secondary circuit that is used for automatic capacity transfer control, wherein,
Described secondary circuit comprises no excitation regulation switch, electric controller and automatic controller, and described no excitation regulation switch is connected with described electric controller, and described electric controller connects described automatic controller;
Described assembling shunt capacitor comprises the capacitor unit that three-phase is identical, every phase capacitor unit is made of Shunt Capacitor Unit, reactor and discharge coil, described Shunt Capacitor Unit end of incoming cables and reactor are connected in series, described Shunt Capacitor Unit and discharge coil are connected in parallel, the capacitor that two parallel connections are arranged in the described Shunt Capacitor Unit, the outlet of each capacitor respectively with the different contacts of the no excitation regulation switch formation neutral point that is connected in series.
2. automatic capacitor tuning type capacitor device as claimed in claim 1 is characterized in that, described no excitation regulation switch is made up of the motor of driving switch and control gear break-make.
3. automatic capacitor tuning type capacitor device as claimed in claim 1 is characterized in that described electric controller is made up of gear input module, gear output module and Executive Module.
4. automatic capacitor tuning type capacitor device as claimed in claim 1 is characterized in that described automatic controller is made up of analog quantity modular converter, gear input module, logic judgment module and Executive Module.
5. automatic capacitor tuning type capacitor device as claimed in claim 1, it is characterized in that described secondary circuit is made up of no excitation regulation switch, electric controller, automatic controller, driving switch output cable, Electric Machine Control cable, primary voltage cable and inlet wire current cable.
6. automatic capacitor tuning type capacitor device as claimed in claim 5, it is characterized in that, in the described secondary circuit, the driving switch of described no excitation regulation switch links to each other with the gear input module of electric controller by the driving switch output cable, the gear output module of described electric controller links to each other with the gear input module of automatic controller by the driving switch output cable, described primary voltage links to each other with the analog quantity modular converter of automatic controller by described primary voltage cable, described inlet wire current links to each other with the analog quantity modular converter of automatic controller by described inlet wire current cable, the Executive Module of described automatic controller links to each other with an end of the Executive Module of electric controller by the Electric Machine Control cable, and the other end of the Executive Module of electric controller links to each other with the motor of no excitation regulation switch by the Electric Machine Control cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205386212U CN201797323U (en) | 2010-09-21 | 2010-09-21 | Automatic capacitance-adjusting capacitor device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205386212U CN201797323U (en) | 2010-09-21 | 2010-09-21 | Automatic capacitance-adjusting capacitor device |
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| CN201797323U true CN201797323U (en) | 2011-04-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010205386212U Expired - Fee Related CN201797323U (en) | 2010-09-21 | 2010-09-21 | Automatic capacitance-adjusting capacitor device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101938134A (en) * | 2010-09-21 | 2011-01-05 | 宁波天安（集团）股份有限公司 | Automatic capacitance-adjusting capacitor device |
| CN111122982A (en) * | 2019-12-27 | 2020-05-08 | 安徽航睿电子科技有限公司 | Combined capacitor control system |
-
2010
- 2010-09-21 CN CN2010205386212U patent/CN201797323U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101938134A (en) * | 2010-09-21 | 2011-01-05 | 宁波天安（集团）股份有限公司 | Automatic capacitance-adjusting capacitor device |
| CN111122982A (en) * | 2019-12-27 | 2020-05-08 | 安徽航睿电子科技有限公司 | Combined capacitor control system |
| CN111122982B (en) * | 2019-12-27 | 2022-04-08 | 安徽航睿电子科技有限公司 | Combined capacitor control system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20110413 Termination date: 20160921 |