CN204407896U - A kind of active power filtering and reactive-compensation comprehensive device - Google Patents
A kind of active power filtering and reactive-compensation comprehensive device Download PDFInfo
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- CN204407896U CN204407896U CN201520098759.8U CN201520098759U CN204407896U CN 204407896 U CN204407896 U CN 204407896U CN 201520098759 U CN201520098759 U CN 201520098759U CN 204407896 U CN204407896 U CN 204407896U
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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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- 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 a kind of active power filtering and reactive-compensation comprehensive device; Be provided with the phase active power filtering corresponding with three of three-phase power line phase lines and reactive-compensation comprehensive device; Phase active power filtering and reactive-compensation comprehensive device are provided with the IGBT switch S 1 and S2, IGBT switch S 3 and S4 that mutually also arrange, and are provided with the inductance L 1, electric capacity C1 ~ C4 and the inductance L 2 that connect successively between polar capacitor Cd, IGBT switch S 1 and the positive pole of S3; Tie point between electric capacity C1 and C2, and between the tie point between electric capacity C3 and C4, be provided with the inductance L 3, electric capacity C5 ~ C6 and the inductance L 4 that connect successively successively; Tie point wherein between inductance L 3 and electric capacity C5 connects live wire, and live wire connects phase line corresponding in three-phase power line; Tie point between inductance L 4 and electric capacity C6 connects zero line, and zero line connects the neutral line in three-phase power line, and be provided with some groups of storage capacitor C0 between live wire and zero line, each storage capacitor is provided with relay K.
Description
Technical field
The utility model relates to a kind of active power filtering and the reactive-compensation comprehensive device of field of power electronics.
Background technology
Filtering and reactive-compensation comprehensive device are the significant problems affecting grid supply quality, if above-mentioned two problems can not get solving, will have a strong impact on power supply safety.Current utility power quality control device, cannot meet the demand of filtering and reactive power compensation simultaneously, namely enable satisfied, also cannot be applicable to three-phase equilibrium and unbalanced system simultaneously, and bulky, controls difficulty.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of active power filtering and reactive-compensation comprehensive device, and its volume is little, and can be applicable to three-phase equilibrium and unbalanced system simultaneously.
A kind of technical scheme realizing above-mentioned purpose is: a kind of active power filtering and reactive-compensation comprehensive device, is provided with the phase active power filtering corresponding with the phase line of three on three-phase power line and reactive-compensation comprehensive device;
Described phase active power filtering and reactive-compensation comprehensive device are provided with four IGBT switches, i.e. IGBT switch S 1, IGBT switch S 2, IGBT switch S 3, IGBT switch S 4; The negative pole of described IGBT switch S 4 connects the positive pole of described IGBT switch S 3, the negative pole of described IGBT switch S 2 connects the positive pole of described IGBT switch S 1, the negative pole of described IGBT switch S 3 connects the negative pole of described IGBT switch S 1, and the positive pole of described IGBT switch S 4 connects the positive pole of described IGBT switch S 2; Be connected with polar capacitor Cd between the negative pole of described IGBT switch S 1 and the positive pole of described IGBT switch S 4, wherein the positive pole of polar capacitor Cd connects the negative pole of described IGBT switch S 1, and negative pole connects the positive pole of described IGBT switch S 4; Described IGBT switch S 1, described IGBT switch S 2, described IGBT switch S 3, described IGBT switch S 4 define the inverter of a parallel connection type;
Be provided with the inductance L 1, electric capacity C1, electric capacity C2, electric capacity C3, electric capacity C4 and the inductance L 2 that connect successively between the positive pole of described IGBT switch S 1 and the positive pole of described IGBT switch S 3, the tie point between wherein said electric capacity C2 and described electric capacity C3 is ground connection;
Tie point between described electric capacity C1 and described electric capacity C2, and between the tie point between described electric capacity C3 and described electric capacity C4, be provided with the inductance L 3, electric capacity C5, electric capacity C6 and the inductance L 4 that connect successively successively; Tie point between wherein said electric capacity C5 and described electric capacity C6 is ground connection;
Tie point between wherein said inductance L 3 and described electric capacity C5 connects live wire, and described live wire connects phase line corresponding in three-phase power line;
Tie point between described inductance L 4 and described electric capacity C6 connects zero line, and described zero line connects the neutral line in three-phase power line, and be provided with electric capacity C0 described in some groups of energy storage between described live wire and described zero line, described in each described energy storage, electric capacity is provided with relay K.
Have employed the technical scheme of a kind of active power filtering of the present utility model and reactive-compensation comprehensive device, comprise the phase active power filtering corresponding with three of three-phase power line phase lines and reactive-compensation comprehensive device; Phase active power filtering and reactive-compensation comprehensive device are provided with the IGBT switch S 1 and S2, IGBT switch S 3 and S4 that mutually also arrange, and are provided with the inductance L 1, electric capacity C1 ~ C4 and the inductance L 2 that connect successively between polar capacitor Cd, IGBT switch S 1 and the positive pole of S3; Tie point between electric capacity C1 and C2, and between the tie point between electric capacity C3 and C4, be provided with the inductance L 3, electric capacity C5 ~ C6 and the inductance L 4 that connect successively successively; Tie point wherein between inductance L 3 and electric capacity C5 connects live wire, and live wire connects phase line corresponding in three-phase power line; Tie point between inductance L 4 and electric capacity C6 connects zero line, and zero line connects the neutral line in three-phase power line, and be provided with some groups of storage capacitor C0 between live wire and zero line, each storage capacitor is provided with relay K.Its technique effect is: its volume is little, and can be applicable to three-phase equilibrium and unbalanced system simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of active power filtering of the present utility model and reactive-compensation comprehensive device.
Embodiment
Refer to Fig. 1, inventor of the present utility model, in order to understand the technical solution of the utility model better, below by embodiment particularly, and is described in detail by reference to the accompanying drawings:
Refer to Fig. 1, a kind of active power filtering of the present utility model and reactive-compensation comprehensive device, be provided with the phase active power filtering corresponding with the phase line of three on three-phase power line and reactive-compensation comprehensive device, i.e. a phase active power filtering and reactive-compensation comprehensive device, b phase active power filtering and reactive-compensation comprehensive device and c phase active power filtering and reactive-compensation comprehensive device.
Each described phase active power filtering and reactive-compensation comprehensive device are provided with four IGBT switches, i.e. IGBT switch S 1, IGBT switch S 2, IGBT switch S 3, IGBT switch S 4.Wherein the negative pole of IGBT switch S 4 connects the positive pole of IGBT switch S 3, and the negative pole of IGBT switch S 2 connects the positive pole of IGBT switch S 1, and the negative pole of IGBT switch S 3 connects the negative pole of IGBT switch S 1, and the positive pole of IGBT switch S 4 connects the positive pole of IGBT switch S 2.Meanwhile, be connected with polar capacitor Cd between the negative pole of IGBT switch S 1 and the positive pole of IGBT switch S 4, wherein the positive pole of polar capacitor Cd connects the negative pole of IGBT switch S 1, and positive pole connects the positive pole of IGBT switch S 4.IGBT switch S 1, IGBT switch S 2, IGBT switch S 3, IGBT switch S 4 and polar capacitor Cd define the inverter of a parallel connection type.
Meanwhile, passive L-C filter network is provided with between the positive pole of IGBT switch S 1 and the positive pole of IGBT switch S 3.That is:
Be provided with the inductance L 1, electric capacity C1, electric capacity C2, electric capacity C3, electric capacity C4 and the inductance L 2 that connect successively between the positive pole of IGBT switch S 1 and the positive pole of IGBT switch S 3, the tie point wherein between electric capacity C2 and electric capacity C3 is ground connection.
Tie point between electric capacity C1 and electric capacity C2, and between the tie point between electric capacity C3 and electric capacity C4, be provided with the inductance L 3, electric capacity C5, electric capacity C6 and the inductance L 4 that connect successively successively.Tie point wherein between electric capacity C5 and electric capacity C6 is ground connection.
Tie point wherein between inductance L 3 and electric capacity C5 connects live wire, described live wire connects phase line corresponding in three-phase power line, namely a phase active power filtering is connected a phase line in three-phase power line with the live wire in reactive-compensation comprehensive device, b phase active power filtering is connected the b phase line in three-phase power line with the live wire in reactive-compensation comprehensive device, c phase active power filtering is connected the c phase line in three-phase power line with the live wire in reactive-compensation comprehensive device.
Tie point wherein between inductance L 4 and electric capacity C6 connects zero line, and described zero line connects the neutral line in three-phase power line, and be provided with some groups of storage capacitor C0 between described live wire and described zero line, each described storage capacitor is provided with relay K.
Three phase active power filterings in a kind of active power filtering of the present utility model and reactive-compensation comprehensive device and reactive-compensation comprehensive device by parallel-type converter, in conjunction with jumbo Passive LC filter network composition.In this structure, the task that harmonic carcellation and damping Passive LC filter network and line impedance produce resonance born by inverter, thus make the electric current of harmonic wave control part, voltage rating greatly reduces, and reduces cost and the volume of device.Simultaneously, due to a phase active power filtering and reactive-compensation comprehensive device, b phase active power filtering and reactive-compensation comprehensive device and c phase active power filtering and reactive-compensation comprehensive device have employed identical structure, make a kind of active power filtering of utility model and reactive-compensation comprehensive device can run on three-phase equilibrium and unbalanced system, can neutral current be compensated
Those of ordinary skill in the art will be appreciated that, above embodiment is only used to the utility model is described, and be not used as restriction of the present utility model, as long as in spirit of the present utility model, all will drop in Claims scope of the present utility model the change of the above embodiment, modification.
Claims (1)
1. active power filtering and a reactive-compensation comprehensive device, is characterized in that: be provided with the phase active power filtering corresponding with the phase line of three on three-phase power line and reactive-compensation comprehensive device;
Described phase active power filtering and reactive-compensation comprehensive device are provided with four IGBT switches, i.e. IGBT switch S 1, IGBT switch S 2, IGBT switch S 3, IGBT switch S 4; The negative pole of described IGBT switch S 4 connects the positive pole of described IGBT switch S 3, the negative pole of described IGBT switch S 2 connects the positive pole of described IGBT switch S 1, the negative pole of described IGBT switch S 3 connects the negative pole of described IGBT switch S 1, and the positive pole of described IGBT switch S 4 connects the positive pole of described IGBT switch S 2; Be connected with polar capacitor Cd between the negative pole of described IGBT switch S 1 and the positive pole of described IGBT switch S 4, wherein the positive pole of polar capacitor Cd connects the negative pole of described IGBT switch S 1, and negative pole connects the positive pole of described IGBT switch S 4; Described IGBT switch S 1, described IGBT switch S 2, described IGBT switch S 3, described IGBT switch S 4 define the inverter of a parallel connection type;
Be provided with the inductance L 1, electric capacity C1, electric capacity C2, electric capacity C3, electric capacity C4 and the inductance L 2 that connect successively between the positive pole of described IGBT switch S 1 and the positive pole of described IGBT switch S 3, the tie point between wherein said electric capacity C2 and described electric capacity C3 is ground connection;
Tie point between described electric capacity C1 and described electric capacity C2, and between the tie point between described electric capacity C3 and described electric capacity C4, be provided with the inductance L 3, electric capacity C5, electric capacity C6 and the inductance L 4 that connect successively successively; Tie point between wherein said electric capacity C5 and described electric capacity C6 is ground connection;
Tie point between wherein said inductance L 3 and described electric capacity C5 connects live wire, and described live wire connects phase line corresponding in three-phase power line;
Tie point between described inductance L 4 and described electric capacity C6 connects zero line, and described zero line connects the neutral line in three-phase power line, and be provided with electric capacity C0 described in some groups of energy storage between described live wire and described zero line, described in each described energy storage, electric capacity is provided with relay K.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520098759.8U CN204407896U (en) | 2015-02-11 | 2015-02-11 | A kind of active power filtering and reactive-compensation comprehensive device |
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| CN201520098759.8U CN204407896U (en) | 2015-02-11 | 2015-02-11 | A kind of active power filtering and reactive-compensation comprehensive device |
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| CN204407896U true CN204407896U (en) | 2015-06-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104578077A (en) * | 2015-02-11 | 2015-04-29 | 国网上海市电力公司 | Active power filter and reactive compensation integrated device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104578077A (en) * | 2015-02-11 | 2015-04-29 | 国网上海市电力公司 | Active power filter and reactive compensation integrated device |
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