CN203466573U - Three-phase common compensation type dynamic harmonic suppression intelligent capacitor - Google Patents
Three-phase common compensation type dynamic harmonic suppression intelligent capacitor Download PDFInfo
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- CN203466573U CN203466573U CN201320583131.8U CN201320583131U CN203466573U CN 203466573 U CN203466573 U CN 203466573U CN 201320583131 U CN201320583131 U CN 201320583131U CN 203466573 U CN203466573 U CN 203466573U
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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
Disclosed in the utility model is a three-phase common compensation type dynamic harmonic suppression intelligent capacitor comprising an upper split module and a lower split module. An intelligent measurement and control unit, a zero switch board, a miniature circuit breaker and a liquid crystal display are arranged in the upper split module; and a filter reactor, two delta type low-voltage power capacitors and a miniature current transformer are arranged in the lower split module. The intelligent measurement and control unit is provided with an electric energy metering chip and a main control board; the zero switch board is welded to the main control board; and a silicon controlled rectifier noncontact switch is arranged at the zero switch board. Besides, the miniature circuit breaker, the silicon controlled rectifier noncontact switch, the miniature current transformer, the filter reactor, and the low-voltage power capacitors are successively connected in series. The provided intelligent capacitor has the advantages of high-intelligence and high-precision reactive compensation and harmonic suppression, good fault self-diagnosis performance, small size, low cost, convenient maintenance, simple filed wiring application, high efficiency, low power consumption, and saved time and effort.
Description
Technical field:
The utility model relates to a kind of Intelligent capacitor, and particularly a kind of three-phase total compensation type dynamic harmonic suppresses Intelligent capacitor.
Background technology:
In electric power system, reactive power is a key factor that affects voltage stabilization, and can it is related to whole electric power system move with security and stability, and reactive power compensation is to guarantee one of effective measures of electric power system high efficient and reliable operation.At present, most of idle compensating control is usingd power factor, reactive current as switching criterion, and the height of power factor and reactive current can not directly reflect the size of no-power vacancy, and reactive power compensation is accurate not, produces extra electric energy loss.
Harmonic wave is mainly used in a large number non-linear equipments to produce in electrical network.The harmonic wave that this kind equipment produces causes user's active energy to increase, and grid electricity fee cost rises, transformer heating aggravation, and electronic equipment is malfunctioning, and capacitance compensation cannot move.More seriously when capacitor group and system generation parallel resonance, electric current is multiplied, and causes switch trip, fuse blows, and fling-cut switch burns, and harmonic voltage speed-up condenser decay in addition, shortens its useful life.Conventional harmonic wave management method has anti-harmonic wave, harmonic wave inhibition, passive filtering, active power filtering.Thereby anti-harmonic wave is mainly to improve the anti-harmonic wave interference performance of compensation equipment by improving the method for the withstand voltage and through-flow parameter of the components and parts such as electric capacity, switch, can not fundamentally solve the problem of harmonic pollution.
Utility model content:
For the deficiencies in the prior art, the purpose of this utility model is to provide a kind of three-phase total compensation type dynamic harmonic and suppresses Intelligent capacitor, has high-intelligentization, high accuracy reactive power compensation and suppresses harmonic wave, fault self-diagnosis function and easy to maintenance.
It is as follows that the utility model solves the problems of the technologies described above adopted technical scheme: a kind of three-phase total compensation type dynamic harmonic suppresses Intelligent capacitor, comprise split module and lower split module, intelligent measurement and control unit, zero fling-cut switch plate, miniature circuit breaker and liquid crystal display are set in described upper split module; In described lower split module, filter reactor, △ Type Low Voltage Power Capacitor and micro-transformer of current are set; Described intelligent measurement and control unit arranges electric energy computation chip and master control borad, and described zero fling-cut switch plate is welded on master control borad, on described zero fling-cut switch plate, controllable silicon noncontacting switch is set; Described miniature circuit breaker, controllable silicon noncontacting switch, micro-transformer of current, filter reactor and low voltage power capacitor are connected successively.
Described controllable silicon noncontacting switch is mainly comprised of high-power anti-parallel thyristor, photoelectric isolating circuit, circuits for triggering, protective circuit, heat abstractor;
Described intelligent measurement and control unit is provided with DSP digital processing circuit;
In described upper split module, fin is also set;
The reactance Rate of described filter reactor is selected according to harmonic number, is a kind of in 4.5%, 6%, 7%, 12%, 13%;
Described △ Type Low Voltage Power Capacitor quantity is at least 1 group;
Described △ Type Low Voltage Power Capacitor set temperature transducer;
Described filter reactor set temperature transducer.
Operation principle: intelligent measurement and control unit comprises high-precision electric energy computation chip and master control borad, three-phase current, voltage are inputted electric energy computation chip after current transformer, voltage transformer, by DSP circuit, calculate three-phase current, voltage effective value, each and stores in master control borad chip by exchanges data mutually or close active power, reactive power, the power factor (PF) of phase; Master control borad also receives the detection signal of each electric elements in primary circuit simultaneously; Finally; master control borad chip is according to all signals and the data that gather; by default control strategy, carry out intelligent operation/cutting judgement; control zero fling-cut switch and realize input or the excision of capacitor group, realize intelligent powerless compensation process and realize capacitor switch and capacitor overvoltage, under-voltage, decompression, short circuit, overcurrent, disconnected phase, cross the functions such as harmonic wave, overheat protector.
Beneficial effect: 1, altitude figure, intellectuality, utilize microelectric technique, to the calculating of sampling of distribution voltage, electric current, then calculate other relevant parameter, whole process is real-time fast, and demonstration, computing, transmission are all to adopt digital form; By Intelligent Network Techniques, build RS-485 communication network, make each unit co-ordination, and realize information exchange, form intelligent control system, can realize fault self-diagnosis function, working service is convenient, operational reliability is high.
2, energy-saving and cost-reducing, the utility model adopts reactive power as the main criterion of switching, usings power factor as assistant criteria, drops into immediate compensation capacitors close according to the variation of power load.Wherein capacitor group number, each pool-size can configure flexibly, obtain the reactive power compensation effect of optimum electrical network, improve the quality of power supply, the conservation of power energy.
3, the utility model is by the filter reactor that series connection matches with it in capacitance compensation loop, thereby effectively absorb the fractional harmonic in electrical network, can series reactors be 4.5%, 6%, 7%, 12%, 13% reactor, can effectively suppress 3,5,7 times and above current harmonics and superpotential generation.
4, controllable silicon noncontacting switch is mainly comprised of high-power anti-parallel thyristor, photoelectric isolating circuit, circuits for triggering, protective circuit, heat abstractor; Realize real operating passing zero, no-flashy-flow, without switching overvoltage, action response speed fast (20ms), can frequent operation, low in energy consumption, volume is little, can conveniently realize dynamic compensation and control, and has failure rate extremely low, the feature of long service life.
5, the utility model is two-piece unit formula modular construction, and volume is little, easy to maintenance, on-the-spot use wiring is very simple, and efficiency is high, and power consumption is little, time saving and energy saving, standardized production and long distance transportation are very convenient, and separate unit cabinet device capacity is large, and cost is low, both be applicable to local compensation, dispersion compensation, is also applicable to centralized compensation, and extending capacity reformation only need increase module number in the future.
Accompanying drawing explanation:
Fig. 1 is structural representation of the present utility model
Fig. 2 is split pattern block structure schematic diagram on this
Fig. 3 is the utility model fundamental diagram
Wherein, split module 3-intelligent measurement and control unit 4-controllable silicon noncontacting switch 5-miniature circuit breaker 6-liquid crystal display 7-filter reactor 8-△ Type Low Voltage Power Capacitor 9-micro-transformer of current 10-fin under the upper split module of 1-2-
Embodiment:
Below in conjunction with accompanying drawing, the utility model is described in further detail:
As shown in Figure 1, 2, 3, a kind of three-phase total compensation type dynamic harmonic suppresses Intelligent capacitor, comprises split module 1 and lower split module 2, and intelligent measurement and control unit 3, zero fling-cut switch plate, miniature circuit breaker 5 and liquid crystal display 6 are set in described upper split module 1; In described lower split module 2, filter reactor 7, △ Type Low Voltage Power Capacitor 8 and micro-transformer of current 9 are set; Described intelligent measurement and control unit 3 arranges electric energy computation chip and master control borad, and described zero fling-cut switch plate is welded on master control borad, on described zero fling-cut switch plate, controllable silicon noncontacting switch 4 is set; Described miniature circuit breaker 5, controllable silicon noncontacting switch 4, micro-transformer of current 9, filter reactor 7 and low voltage power capacitor 8 are connected successively.
Described controllable silicon noncontacting switch 4 is mainly comprised of high-power anti-parallel thyristor, photoelectric isolating circuit, circuits for triggering, protective circuit, heat abstractor;
Described intelligent measurement and control unit 3 is provided with DSP digital processing circuit;
In described upper split module 1, fin 10 is also set;
The reactance Rate of described filter reactor 7 is selected according to harmonic number, is a kind of in 7%;
Described △ Type Low Voltage Power Capacitor quantity is 2 groups;
Described △ Type Low Voltage Power Capacitor 8 set temperature transducers;
Described filter reactor 7 set temperature transducers.
Above embodiment is only in order to illustrate that the technical solution of the utility model is not intended to limit; those of ordinary skill in the field are to be understood that: those skilled in the art still can modify or be equal to replacement specific embodiment of the utility model, but among the claim protection range that these modifications or change are all awaited the reply in application.
Claims (8)
1. three-phase total compensation type dynamic harmonic suppresses an Intelligent capacitor, it is characterized in that, comprises split module and lower split module, and intelligent measurement and control unit, zero fling-cut switch plate, miniature circuit breaker and liquid crystal display are set in described upper split module; In described lower split module, filter reactor, △ Type Low Voltage Power Capacitor and micro-transformer of current are set; Described intelligent measurement and control unit arranges electric energy computation chip and master control borad, and described zero fling-cut switch plate is welded on master control borad, on described zero fling-cut switch plate, controllable silicon noncontacting switch is set; Described miniature circuit breaker, controllable silicon noncontacting switch, micro-transformer of current, filter reactor and low voltage power capacitor are connected successively.
2. a kind of three-phase total compensation type dynamic harmonic according to claim 1 suppresses Intelligent capacitor; it is characterized in that, described controllable silicon noncontacting switch is mainly comprised of high-power anti-parallel thyristor, photoelectric isolating circuit, circuits for triggering, protective circuit, heat abstractor.
3. a kind of three-phase total compensation type dynamic harmonic according to claim 1 suppresses Intelligent capacitor, it is characterized in that, described intelligent measurement and control unit is provided with DSP digital processing circuit.
4. a kind of three-phase total compensation type dynamic harmonic according to claim 1 suppresses Intelligent capacitor, it is characterized in that, in described upper split module, fin is also set.
5. a kind of three-phase total compensation type dynamic harmonic according to claim 1 suppresses Intelligent capacitor, it is characterized in that, the reactance Rate of described filter reactor is selected according to harmonic number, is a kind of in 4.5%, 6%, 7%, 12%, 13%.
6. a kind of three-phase total compensation type dynamic harmonic according to claim 1 suppresses Intelligent capacitor, it is characterized in that, described △ Type Low Voltage Power Capacitor quantity is at least 1 group.
7. a kind of three-phase total compensation type dynamic harmonic according to claim 1 suppresses Intelligent capacitor, it is characterized in that described △ Type Low Voltage Power Capacitor set temperature transducer.
8. a kind of three-phase total compensation type dynamic harmonic according to claim 1 suppresses Intelligent capacitor, it is characterized in that described filter reactor set temperature transducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320583131.8U CN203466573U (en) | 2013-09-18 | 2013-09-18 | Three-phase common compensation type dynamic harmonic suppression intelligent capacitor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320583131.8U CN203466573U (en) | 2013-09-18 | 2013-09-18 | Three-phase common compensation type dynamic harmonic suppression intelligent capacitor |
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|---|---|
| CN203466573U true CN203466573U (en) | 2014-03-05 |
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| CN201320583131.8U Expired - Fee Related CN203466573U (en) | 2013-09-18 | 2013-09-18 | Three-phase common compensation type dynamic harmonic suppression intelligent capacitor |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103595056A (en) * | 2013-09-18 | 2014-02-19 | 宁夏天地经纬电力设备工程有限公司 | Intelligent capacitor |
| CN104934980A (en) * | 2015-07-13 | 2015-09-23 | 江苏现代电力科技股份有限公司 | Self-tuning low voltage passive filtering compensation device |
| CN108718090A (en) * | 2018-08-08 | 2018-10-30 | 江苏安科瑞电器制造有限公司 | High type harmonics restraint electric capacitor compensation device |
-
2013
- 2013-09-18 CN CN201320583131.8U patent/CN203466573U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103595056A (en) * | 2013-09-18 | 2014-02-19 | 宁夏天地经纬电力设备工程有限公司 | Intelligent capacitor |
| CN104934980A (en) * | 2015-07-13 | 2015-09-23 | 江苏现代电力科技股份有限公司 | Self-tuning low voltage passive filtering compensation device |
| CN108718090A (en) * | 2018-08-08 | 2018-10-30 | 江苏安科瑞电器制造有限公司 | High type harmonics restraint electric capacitor compensation device |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHANDONG HALEI ELECTRICAL TECHNOLOGY CO., LTD. Free format text: FORMER NAME: ZIBO HALLEY ELECTRIC POWER TECHNOLOGY CO., LTD. |
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| CP01 | Change in the name or title of a patent holder |
Address after: Waanje Road Development Zone in Zibo City, Shandong Province, No. 119 255086 Patentee after: SHANDONG HALEI POWER TECHNOLOGY CO., LTD. Address before: Waanje Road Development Zone in Zibo City, Shandong Province, No. 119 255086 Patentee before: Zibo Halley Electric Power Technology Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140305 Termination date: 20150918 |
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| EXPY | Termination of patent right or utility model |