CN203039367U - Low pressure filtering reactive compensation circuit structure - Google Patents
Low pressure filtering reactive compensation circuit structure Download PDFInfo
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- CN203039367U CN203039367U CN2012207428079U CN201220742807U CN203039367U CN 203039367 U CN203039367 U CN 203039367U CN 2012207428079 U CN2012207428079 U CN 2012207428079U CN 201220742807 U CN201220742807 U CN 201220742807U CN 203039367 U CN203039367 U CN 203039367U
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- voltage transformation
- transformation circuit
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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 low pressure filtering reactive compensation circuit structure. The structure comprises a filtering compensating circuit and a voltage transformation circuit. The filtering compensating circuit is connected with the voltage transformation circuit. The voltage transformation circuit comprises a three-phase boost voltage transformation circuit. Primary windings of the phases of the three-phase boost voltage transformation circuit are mutually connected with each other. The windings of the phases of the three-phase boost voltage transformation circuit are mutually connected with each other. The primary windings of the three-phase boost voltage transformation circuit are connected with a three-phase switch. Secondary windings of the phases of the three-phase boost voltage transformation circuit are connected with a filter capacitor through a contactor. Connection of the primary windings of the phases of the three-phase boost voltage transformation circuit is a delta connection. The connection of the secondary windings of the phases of the three-phase boost voltage transformation circuit is the delta connection. Compared to the prior art, by using the structure of the utility model, voltage quality is increased and is stable; a harmonic interference is relatively suppressed; power supply quality is increased; an ore distribution system realizes low-voltage local reactive power balancing; a power factor of the system is increased and energy consumption is reduced.
Description
Technical field
The utility model relates to the reactive power compensation circuit field, exactly refers to a kind of low-voltage filter reactive compensation circuit structure.
Background technology
At present, the technology of reactive power compensation mainly is divided into following several: one, hot stove becomes the high-pressure side and carries out reactive power compensation filtering in the ore deposit, namely connect the high-pressure reactive compensation filter in the ore heat furnace transformer high-pressure side, the high-pressure side compensation is generally fixed compensation, it is simple that it has a device structure, small investment, maintenance workload is little, device and advantages such as transformer does not interact, but because its access point at high pressure, the power factor of ore heat furnace transformer can not improve, thereby can not solve the problem of imbalance of three-phase voltage, and the high-pressure side compensation can not effectively improve low-pressure side voltage and power factor, can not increase ore heat furnace transformer and exert oneself, can only improve the power factor that the ore heat furnace transformer high-pressure side is the electrical network end of incoming cables; Simultaneously, the high-pressure side compensation because the reactive load transformation forms overcompensation and undercompensation, is beaten the effect less than stable compensation easily; Two, hot stove becomes low-pressure side and carries out reactive power compensation filtering in the ore deposit, namely in the ore heat furnace transformer low-pressure side low-voltage reactive power compensation capacitor is installed and is carried out reactive power compensation filtering, it can significantly improve power factor, improve and stabilizing low voltage side voltage, absorb harmonic wave, reduction stove power transformation consumption and raising stove become exerts oneself, but because low-voltage reactive-load compensation capacitor price is very high, influences it and apply; Three, hot stove uprises in the ore deposit, low-pressure side installs the reactive power compensation filter simultaneously, and its shortcoming is to reach the optimum efficiency that low-pressure reactive compensation is held concurrently filtering.In sum, existing ore heat furnace transformer reactive power compensation technology ubiquity can't effectively improve ore heat furnace transformer power factor, be not easy to promote, problem that compensation effect is not good, be necessary to invent a kind of power factor that can effectively improve ore heat furnace transformer for this reason, be convenient to promote and ore deposit hot stove transformation reactive power compensator that compensation effect is good.
The utility model content
At above-mentioned defective, the technical problem that the utility model solves is to provide a kind of low-voltage filter reactive compensation circuit structure, quality of voltage is improved and stablizes, humorous wave interference suppresses, has improved power supply quality ore distribution system relatively and realized the low-voltage reactive power in-situ balancing, improved the power factor of system, energy consumption reduces.
In order to solve above technical problem, the low-voltage filter reactive compensation circuit structure that the utility model provides comprises compensation filter circuit and transforming circuit, and described filtering compensation circuit is connected with described transforming circuit; Described filtering compensation circuit comprises threephase switch and contactor; Described transforming circuit comprises the three-phase voltage increasing transforming circuit, each of described three-phase voltage increasing transforming circuit interconnects between a winding mutually, interconnect between each phase winding of three-phase voltage increasing transforming circuit, a winding of three-phase voltage increasing transforming circuit links to each other with threephase switch, each phase secondary winding of three-phase voltage increasing transforming circuit all is connected with filtering capacitor by contactor, the triangle that is connected between winding of each phase of described three-phase voltage increasing transforming circuit connects, and the triangle that is connected between each phase secondary winding of three-phase voltage increasing transforming circuit connects.
Preferably, described contactor is three-phase contactor or three single-phase contactors.
During work, reactive power compensation and filtering requirements according to the ore heat furnace transformer low-pressure side, namely need the reactive capability that compensates and suppress filter times and harmonic content, connect several filtering compensation circuit at the ore heat furnace transformer low-voltage bus bar, the ore heat furnace transformer low-pressure side is carried out reactive power compensation and filtering, the filtering compensation circuit is divided into three times, four times, five filtering compensation circuit, wherein three filtering compensation circuit adopt three-phase and phase-splitting to control the multi-stage switching compensation filter of combination, namely a part is the switching filtering compensation circuit of multistage three-phase, another part is multistage single-phase switching filtering compensation circuit, four times, five filtering compensation circuit are the switching filtering compensation circuit of multistage three-phase; Some groups of homogeneous filtering compensation circuit can be chanted a three-phase voltage increasing transforming circuit by every suite of song, also can organize to share a three-phase voltage increasing transforming circuit more; The leakage reactance value of three-phase voltage increasing transforming circuit is by corresponding secondary, three times, four times, five times, six times or No. seven filter reactor inductance value of filtering requirements; Compare with existing ore heat furnace transformer reactive power compensation technology, the ore furnace low-pressure reactive compensation of the present invention filter of holding concurrently is controlled the multi-stage switching compensation filter that combines by adopting three-phase with phase-splitting, improved the imbalance of three-phase voltage state, effectively improved the power factor of ore heat furnace transformer, it is because the rising that three-phase rises the secondary voltage of transformer simultaneously, the reactive-load compensation capacitor cost is reduced, thus easy to utilize.The ore furnace low-pressure reactive compensation of the present invention filter of holding concurrently not only can compensate the reactive power of the hot stove in ore deposit, improve the electric power factor of the hot stove in ore deposit, stablize the voltage levvl of the hot stove in ore deposit, and can suppress the humorous rich injection electrical network of high order, it is no matter aspect improving power factor, absorbing harmonic wave, still aspect the volume increase consumption reduction, the incomparable advantage of existing ore heat furnace transformer reactive power compensation technology is arranged.
Compared with prior art, the low-voltage filter reactive compensation circuit structure that the utility model provides, quality of voltage is improved and stablizes, and humorous wave interference suppresses, has improved power supply quality ore distribution system relatively and realized the low-voltage reactive power in-situ balancing, improved the power factor of system, energy consumption reduces.
Description of drawings
Fig. 1 is the structural representation of the utility model mesolow filter reactive compensation circuit structure.
Embodiment
For those skilled in the art can understand technical scheme provided by the utility model better, set forth below in conjunction with specific embodiment.
See also Fig. 1, this figure is the structural representation of the utility model mesolow filter reactive compensation circuit structure.
The low-voltage filter reactive compensation circuit structure that present embodiment provides comprises filtering compensation circuit and transforming circuit, and the filtering compensation circuit is connected with transforming circuit; The filtering compensation circuit comprises threephase switch 1 and contactor; Transforming circuit comprises three-phase voltage increasing transforming circuit 2, each of three-phase voltage increasing transforming circuit 2 interconnects between a winding mutually, interconnect between each phase winding of three-phase voltage increasing transforming circuit 2, a winding of three-phase voltage increasing transforming circuit 2 links to each other with threephase switch, each phase secondary winding of three-phase voltage increasing transforming circuit 2 all is connected with filtering capacitor 3 by contactor, the triangle that is connected between winding of each phase of three-phase voltage increasing transforming circuit 2 connects, and the triangle that is connected between each phase secondary winding of three-phase voltage increasing transforming circuit 2 connects.Contactor is three-phase contactor 4.
Compared with prior art, the low-voltage filter reactive compensation circuit structure that the utility model provides, quality of voltage is improved and stablizes, and humorous wave interference suppresses, has improved power supply quality ore distribution system relatively and realized the low-voltage reactive power in-situ balancing, improved the power factor of system, energy consumption reduces.According to measuring and calculating, year save about 40,000 degree of an electric weight, simultaneously, solved voltage fluctuation and flicker and made the line voltage distortion cause error action of device, the capacitor super-load overvoltage of protection, the electric equipment loss increases, easily a series of harmful effects such as aging of heating, insulation.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the utility model.Multiple modification to these embodiment will be apparent concerning those skilled in the art, and defined General Principle can realize under the situation that does not break away from spirit or scope of the present utility model in other embodiments herein.Therefore, the utility model will can not be restricted to these embodiment shown in this article, but will meet the wideest scope consistent with principle disclosed herein and features of novelty.
Claims (2)
1. a low-voltage filter reactive compensation circuit structure is characterized in that, comprises filtering compensation circuit and transforming circuit, and described filtering compensation circuit is connected with described transforming circuit; Described filtering compensation circuit comprises threephase switch and contactor; Described transforming circuit comprises the three-phase voltage increasing transforming circuit, each of described three-phase voltage increasing transforming circuit interconnects between a winding mutually, interconnect between each phase winding of three-phase voltage increasing transforming circuit, a winding of three-phase voltage increasing transforming circuit links to each other with threephase switch, each phase secondary winding of three-phase voltage increasing transforming circuit all is connected with filtering capacitor by contactor, the triangle that is connected between winding of each phase of described three-phase voltage increasing transforming circuit connects, and the triangle that is connected between each phase secondary winding of three-phase voltage increasing transforming circuit connects.
2. low-voltage filter reactive compensation circuit structure according to claim 1 is characterized in that, described contactor is three-phase contactor or three single-phase contactors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012207428079U CN203039367U (en) | 2012-12-30 | 2012-12-30 | Low pressure filtering reactive compensation circuit structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012207428079U CN203039367U (en) | 2012-12-30 | 2012-12-30 | Low pressure filtering reactive compensation circuit structure |
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| Publication Number | Publication Date |
|---|---|
| CN203039367U true CN203039367U (en) | 2013-07-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012207428079U Expired - Lifetime CN203039367U (en) | 2012-12-30 | 2012-12-30 | Low pressure filtering reactive compensation circuit structure |
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| CN (1) | CN203039367U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110360730A (en) * | 2019-08-06 | 2019-10-22 | 珠海格力电器股份有限公司 | Automatic compensation starting circuit, control method thereof and air conditioner |
-
2012
- 2012-12-30 CN CN2012207428079U patent/CN203039367U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110360730A (en) * | 2019-08-06 | 2019-10-22 | 珠海格力电器股份有限公司 | Automatic compensation starting circuit, control method thereof and air conditioner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SICHUAN DESHENG GROUP VANADIUM-TITANIUM CO., LTD. Free format text: FORMER NAME: SICHUAN DESHENG GROUP IRON + STEEL CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 610000 Shawan District, Sichuan Province Patentee after: SICHUAN DESHENG GROUP VANADIUM-TITANIUM Co.,Ltd. Address before: 610000 Shawan Wang, Shawan District, Sichuan, Leshan Patentee before: SICHUAN DESHENG GROUP IRON STEEL Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130703 |