CN101145694A - Integrated intelligent powerless compensation device - Google Patents
Integrated intelligent powerless compensation device Download PDFInfo
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- CN101145694A CN101145694A CNA2007101347141A CN200710134714A CN101145694A CN 101145694 A CN101145694 A CN 101145694A CN A2007101347141 A CNA2007101347141 A CN A2007101347141A CN 200710134714 A CN200710134714 A CN 200710134714A CN 101145694 A CN101145694 A CN 101145694A
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- intelligent powerless
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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 invention discloses an integrated intelligent reactive compensation device, which is characterized in that the device has a supporting board, two power capacitor groups are arranged on the supporting board, a circuit breaker is arranged on the top cover of the capacitor bank, a wiring upright post is correspondingly connected with a switch device on a circuit board, and the capacitor bank is also provided with an upper cover, and an element and a circuit interface are provided on the upper cover. The device comprises no capacitor and current transformer, so as to reduce manufacturing cost under the prerequisite of assuring the detection accuracy. The invention has the advantages of real-time detection and control, complete and intuitive displayed items, wide capacity transformation ratio and accurate compensation, complete protection and warning functions, high degree of intellectualization, good compensation effect, small volume, modularized and compact structure, convenience for power grid and user capacity-increasing reconstruction, zero-cross switching, high reliability, and remarkably improved service life of product. Multiple compensation devices can be combined for operation to meet the requirement of large arranged capacity. A plurality of compensation device can be on-line operated, therefore, meeting the demands of large installed capacity.
Description
Technical field:
The present invention relates to power supply technique, is a kind of reactive power compensator that is used for power supply unit, specifically, is a kind of integrated intelligent powerless compensation device.
Background technology:
Reactive power compensation is to improve the electricity consumption power-factor of load, an important conservation measures of the loss that the reactive current in the minimizing electric energy transmitting circuit causes.Traditional reactive power compensation system mainly is contained in the industrial casing with set of devices such as contactor, current transformer, the anti-reactors that shoves by power capacitor, electric power factor detection controller, switching capacitance and constitutes.Its shortcoming: volume is big, occupied ground is big, engineering cost is high and compensation capacity-increasing transformation difficulty, and applicable scope, place are restricted.
Summary of the invention:
It is complete directly perceived to the purpose of this invention is to provide a kind of real-time detection, control, display items display, and the capacity no-load voltage ratio is wide, compensation precisely, the capacitorless current transformer.Low cost of manufacture, the protection warning function is complete, intelligent degree height, compensation effect is good, and volume is little, the integrated intelligent powerless compensation device of modularization compactness.
Technical solution of the present invention is: a kind of integrated intelligent powerless compensation device, it is characterized in that: supporting plate is arranged, two power capacitor groups are installed on the supporting plate, capacitor group top cover is equipped with circuit breaker, and wiring column and corresponding joining of switching device on the circuit board arranged, on the capacitor group top cover, circuit board and circuit interface are installed.
Circuit interface described in the present invention comprises that circuit interface comprises three-phase electricity, phase current, communication interface, circuit breaker, liquid crystal display screen window, temperature sensor socket.Temperature sensor is fixedly mounted on capacitor upper cover plate outside, touches with the capacitor close proximity.Have single-chip microcomputer to detect control circuit on the circuit board, electric current, voltage, temperature signal all detect control circuit with dedicated connector with single-chip microcomputer and are connected, and buzzer also is installed on the circuit board.Fixing hole and protective earthing point mark are arranged on supporting plate.
Beneficial effect of the present invention is: the utility model is based on two triangular forms or two star-like low voltage power capacitor groups, adopt advanced high-performance, high anti-interference chip design to detect the control display system, really realized the electron recombination contactor design that no-voltage input, zero current excise, remove the anti-reactor that shoves, and there is multi-parameter Chinese backlight to show liquid crystal display screen, small size, the compact integrated structural design of modular.Microelectronics software and hardware technology, micro sensing technology, the network communications technology etc. are its intellectuality, realize low-voltage reactive power automatic compensation, reliable operation, easy to use and possess zero switching, protection, measurement, signal, series function such as online.Its performance like product at present has new raising.Can detect in real time, control, display items display is complete directly perceived.As the power-factor of load before and after each phase voltage of electrical network, electric current, compensation, the quantity, electric capacitor working temperature, switching capacitance cumulative number etc. of input compensation electric capacity in real time.The capacity no-load voltage ratio is wide, and compensation precisely.Mend device altogether for one and have 0: 1: 2: 3 switching capacity no-load voltage ratios guarantee that compensation effect is accurate; A branch is mended device also 0: 1: 2: 3 switching capacity no-load voltage ratios, this technology are at present domestic state-of-the-art.The capacitorless current transformer is guaranteeing to save the current transformer of capacitor under the prerequisite of accuracy of detection, reduces manufacturing cost.The protection warning function is complete.As protections such as overcurrent, overvoltage, under-voltage, phase shortage, outage, excess temperature, condenser failures, in case break down, sound and light alarm is arranged, and liquid crystal display screen shows trouble location.The overheat protector of product can the serious overvoltage of electric capacity, cross under harmonic wave, ambient temperature and the leakage current serious situation out of service automatically immediately and be effectively protected.Intelligent degree height, good this electric capacity of compensation effect uses from input, need not artificial control and monitors or adjustment that it can change according to the inductive load electricity consumption effectively, real-time precise control input compensation electric capacity, with power factor controlling in 0.96～0.99 most economical range of operation.Volume is little, and this low-voltage intelligent reactive power compensator adopts microelectronics integrated technology, and modularized compact type integral structure, its mounting means can be vertical, horizontal, composite type etc., according to user's different application occasion, and selected flexibly mounting means.Can be widely used in the New Residential Quarters distribution box, in the industrial and mining enterprises' controller switching equipment, box change, outdoor distribution transforming or the like.Very convenient to electrical network, user's capacity-increasing transformation.Real zero switching, reliability height, this product have been realized real auto zero voltage input, the zero current excision, switching process no-flashy-flow need not reactor, and the microelectronics intelligence software is handled, need not artificial setting, do not have the trial throw action, guarantee that the switching single compensation puts in place, power factor promptly reaches 0.96～0.99, eliminate the invalid switching frequency of capacitor, promote the useful life of product significantly.Communication, online function, advanced Communication Control technology realizes many electric capacity on-line executes, combination is flexible, connection is convenient, can realize 30 compensation arrangement concurrent connections operations as required at most.Produce a main control system during on-line execute, all the other then are slave, constitute the low-voltage reactive power automatic control system, automatically withdraw from after indivedual slave faults, do not influence bucking-out system work, hostdown withdraws from the back automatically and generate a new main control system automatically in all the other slave, constitutes new system works, the capacitor that capacity is identical is pressed the switching cycle principle, and the different capacitor of capacity is mended the principle switching by fitting.
Below in conjunction with drawings and Examples invention is further described:
Description of drawings:
Fig. 1 is the external form figure of a kind of integrated intelligent powerless compensation device of the present invention;
Fig. 2 is used for the system block diagram of common benefit for integrated intelligent powerless compensation device of the present invention;
Fig. 3 is used for the system block diagram that branch is mended for integrated intelligent powerless compensation device of the present invention.
Embodiment:
By power capacitor group 1 (two), carriage 2 (installing and fixing hole and protection ground mark on the carriage), loam cake 3 (making with plastics or metal), there are ventilation and heat round 4, multi-parameter backlight Chinese liquid crystal display screen, button 5, electric power incoming line jack interface, on-line communication socket etc. in both sides on it among Fig. 1.
Among Fig. 2, Fig. 3: 11 is the power capacitor group; 12 is internal electric source; 13 is the electron recombination contactor; 14 is the photoelectricity isolation controller; 15 is protective circuit breaker; 16 is interface circuit; 17 are communication; 18 are single-chip microcomputer detection control system; 19 is buzzer; 20 is work light; 21 is trouble light; 22 is change over switch; 23 are the sampling of C phase current signal; 24 is the capacitance temperature sample of signal; 25 is A, B, the sampling of C phase current signal.
The structure explanation:
Two power capacitor groups are installed on carriage, and capacitor group top cover is equipped with circuit breaker, the wiring column is installed joins with switching device on the circuit board is corresponding.The loam cake that has plastics or cold rolled plate to make on the capacitor group has three-phase electricity phase current, communication interface on it, circuit breaker, liquid crystal display screen window, temperature sensor, phase current, communication socket.
Temperature sensor is fixedly mounted on capacitor upper cover plate outside, touches with the capacitor close proximity, guarantees that sampled data is accurate.
Electric current, voltage, temperature signal all detect control circuit with dedicated connector with single-chip microcomputer and are connected.On (this compensation arrangement does not need to install the capacitor electrode current transformer) circuit board buzzer is installed.Fixing hole and protective earthing point mark are arranged on carriage.
The compensation arrangement course of work (is the example explanation to be total to complement system):
As Fig. 2: A, B, C three-phase power line, through protective circuit breaker, respectively with " △ " connection, join with two power capacitor groups: C directly connects with capacitor mutually, and B, C electron recombination contact respectively link to each other.AC380V exports required operating voltage through internal electric source.
The voltage sample is taken a sample by AC380V, the sampling of C phase power line current, single-chip microcomputer is defeated by in two groups of power capacitor group working temperatures sampling etc., detect control system, this system through microcomputer computed in software, processing, obtains the switching control signal to sampled signal, through the photoelectricity isolation control circuit, control " B " phase " C " phase two group capacitor groups are implemented operating passing zero in real time;
Determine " automatically " and " manually " mode of operation by change over switch.Work light, trouble light indication total system operating state; Button is mainly used in original running parameter and sets, and normal operation need not adjusted, and is mainly used in the data of inquiry system operation.The system communication interface is used for many online controls of electric capacity.
Claims (5)
1. integrated intelligent powerless compensation device, it is characterized in that: supporting plate is arranged, two power capacitor groups are installed on the supporting plate, every capacitor is made of three capacitor units approximately, capacitor group top cover is equipped with circuit breaker, and wiring column and corresponding joining of switching device on the circuit board are arranged, and also have loam cake on the capacitor group, circuit board and circuit interface are arranged in the loam cake.
2. integrated intelligent powerless compensation device according to claim 1 is characterized in that: circuit interface comprises three-phase electricity, phase current, communication interface, circuit breaker, liquid crystal display screen window, temperature sensor socket.
3. integrated intelligent powerless compensation device according to claim 2 is characterized in that: temperature sensor is fixedly mounted on capacitor upper cover plate outside, touches with the capacitor close proximity.
4. according to claim 1,2 or 3 described integrated intelligent powerless compensation devices, it is characterized in that: have single-chip microcomputer to detect control circuit on the circuit board, electric current, voltage, temperature signal all detect control circuit with dedicated connector with single-chip microcomputer and are connected, and buzzer also is installed on the circuit board.
5. according to claim 1,2 or 3 described integrated intelligent powerless compensation devices, it is characterized in that: fixing hole and protective earthing point mark are arranged on supporting plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101347141A CN101145694A (en) | 2007-10-15 | 2007-10-15 | Integrated intelligent powerless compensation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101347141A CN101145694A (en) | 2007-10-15 | 2007-10-15 | Integrated intelligent powerless compensation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101145694A true CN101145694A (en) | 2008-03-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101347141A Pending CN101145694A (en) | 2007-10-15 | 2007-10-15 | Integrated intelligent powerless compensation device |
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| Country | Link |
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| CN (1) | CN101145694A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103972903A (en) * | 2014-04-21 | 2014-08-06 | 广西鼎轩科技有限公司 | Reactive in-place intelligent compensation device for three-phase asynchronous motor |
| CN106054790A (en) * | 2016-06-02 | 2016-10-26 | 国网山东省电力公司蓬莱市供电公司 | PLC-based low-voltage safety control device |
-
2007
- 2007-10-15 CN CNA2007101347141A patent/CN101145694A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103972903A (en) * | 2014-04-21 | 2014-08-06 | 广西鼎轩科技有限公司 | Reactive in-place intelligent compensation device for three-phase asynchronous motor |
| CN103972903B (en) * | 2014-04-21 | 2016-10-05 | 广西鼎轩科技有限公司 | A kind of device for the idle intelligent compensation on the spot of threephase asynchronous |
| CN106054790A (en) * | 2016-06-02 | 2016-10-26 | 国网山东省电力公司蓬莱市供电公司 | PLC-based low-voltage safety control device |
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Open date: 20080319 |