CN103023042A - Three-phase capacitor switching type reactive compensator - Google Patents
Three-phase capacitor switching type reactive compensator Download PDFInfo
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- CN103023042A CN103023042A CN2012104625811A CN201210462581A CN103023042A CN 103023042 A CN103023042 A CN 103023042A CN 2012104625811 A CN2012104625811 A CN 2012104625811A CN 201210462581 A CN201210462581 A CN 201210462581A CN 103023042 A CN103023042 A CN 103023042A
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- switch circuit
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- chip microcomputer
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- normally closed
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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 provides a three-phase capacitor switching type reactive compensator, comprising capacitors, resistors and a singlechip microcomputer, wherein a voltage sensor is arranged at the input end of the singlechip microcomputer; the output end of the singlechip microcomputer is connected with a three-phase normally open switch circuit K1 through an executing mechanism; one end of the three-phase switch circuit K1 is connected with an engine of power utilization equipment through an electric reactor; the other end of the three-phase switch circuit K1 is connected with input ends of the capacitor which are in start-shaped connection; the executing mechanism is connected with a three-phase normally closed switch circuit K2; one end of the three-phase normally closed switch circuit K2 is respectively connected with connecting points of the triangularly-connected resistors; and the other end of the three-phase normally closed switch circuit K2 is respectively connected with input ends of the capacitors which are in start-shaped connection. According to the three-phase capacitor switching type reactive compensator provided by the invention, the very fine compensation control can be realized. In an operation process, if conditions that the voltage is too high, the voltage is too low, system harmonic content is too high and the like happen, the three-phase capacitor switching type reactive compensator automatically enters an alarming state, all the capacitors are switched off, and a display displays an alarming condition.
Description
Technical field
The present invention relates to distribution servicing unit technical field, be specifically related to a kind of three-phase capacitor switching type reactive-load compensator.
Background technology
At present, general user's controller switching equipment often adopts van-type transformer station, or the controller switching equipment three-phase load that the user adopts is in a basic balance, all needs reactive power compensation, thereby can reduce to greatest extent the reading of reactive energy-meter, reduce to greatest extent user's power factor adjustment charge.Because existing reactive-load compensator generally adopts the capacitor realization to compensate, the connected mode between its capacity cell is that triangle connects.This connected mode makes capacity cell always be in the lower operation of fully loaded load, if in the system load to have impact be that electric current is suddenly big or suddenly small, will damage capacity cell, so the impact resistance of this compensator is relatively poor, affected and reduction of service life by external factor.
Summary of the invention
Technical problem to be solved by this invention provides a kind of three-phase capacitor switching type reactive-load compensator.The resistance ability is strong, reliable reactive-load compensator.
For achieving the above object, following technical scheme is adopted in the invention:
A kind of three-phase capacitor switching type reactive-load compensator, comprise: capacitor, resistance, single-chip microcomputer, described single-chip microcomputer input is provided with voltage sensor, the single-chip microcomputer output links to each other with three-phase normal open switch circuit K1 by actuator, and threephase switch circuit K1 one end links to each other with the power consumption equipment motor by reactor; The threephase switch circuit K1 other end is connected with the input of each capacitor of Y-connection; Actuator links to each other with three-phase normally closed switch circuit K2, and each resistance tie point that three-phase normally closed switch circuit K2 one end is connected with triangle respectively links to each other, and the three-phase normally closed switch circuit K2 other end is connected with the input of each capacitor of Y-connection respectively.
When the voltage sensor that the single-chip microcomputer input arranges, collect system voltage and surpass prescribed limit, single-chip microcomputer carries out automatic overvoltage protection by the threephase switch circuit K1 that actuator cuts off the compensator loop.When system voltage recovered normal, the single-chip microcomputer time-delay dropped into the compensator loop automatically after 5 minutes.
Because adopt aforesaid technical scheme, the present invention has following superiority:
A kind of three-phase capacitor switching type reactive-load compensator is applicable to three-phase load user in a basic balance.Can install separately, also can be the supporting installation of van-type transformer station.Can realize quite meticulous compensation control.And have appropriate overcompensation function, can compensate in the reactive current of low-pressure side to transformer self,
The present invention adopts capacitor and resistance and reactor arrangement, can realize quite meticulous compensation control.And has appropriate overcompensation function, can compensate in the reactive current of low-pressure side to transformer self, the overcompensation amount can be set, be specially adapted to hand over the user of power factor adjustment charge, use 32 ARM High Performance SCM LPC2132 to realize control operation as control core, thereby the power that guarantees controller is achieved.Accuracy of detection is high, and tested analog quantity is directly inputted the A/D converter of LPC2132 and sampled the error of having avoided input processing circuit to cause after dividing potential drop.In running, if run into overtension, brownout, the situations such as system harmonics too high levels can automatically enter alarm condition and excise all capacitors, and display shows alarm condition.After the reason that causes warning is eliminated, can automatically again put into operation.Both had impact resistance, had again over-voltage protecting function, can guarantee that compensator was in the safe operation state all the time.
Description of drawings
Fig. 1 is the circuit diagram of three-phase capacitor switching type reactive-load compensator of the present invention;
Embodiment
In conjunction with Fig. 1, a kind of three-phase capacitor switching type reactive-load compensator, comprise: capacitor, resistance, single-chip microcomputer, described single-chip microcomputer input is provided with voltage sensor, the single-chip microcomputer output links to each other with three-phase normal open switch circuit K1 by actuator, and threephase switch circuit K1 one end links to each other with the power consumption equipment motor by reactor; The threephase switch circuit K1 other end is connected with the input of each capacitor of Y-connection; Actuator links to each other with three-phase normally closed switch circuit K2, and each resistance tie point that three-phase normally closed switch circuit K2 one end is connected with triangle respectively links to each other, and the three-phase normally closed switch circuit K2 other end is connected with the input of each capacitor of Y-connection respectively.
When the voltage sensor that the single-chip microcomputer input arranges, collect system voltage and surpass prescribed limit, single-chip microcomputer carries out automatic overvoltage protection by the threephase switch circuit K1 that actuator cuts off the compensator loop.When system voltage recovered normal, the single-chip microcomputer time-delay dropped into the compensator loop automatically after 5 minutes.
Claims (3)
1. it is characterized in that: a kind of three-phase capacitor switching type reactive-load compensator, comprise: capacitor, resistance, single-chip microcomputer, described single-chip microcomputer input is provided with voltage sensor, the single-chip microcomputer output links to each other with three-phase normal open switch circuit K1 by actuator, and threephase switch circuit K1 one end links to each other with the power consumption equipment motor by reactor; The threephase switch circuit K1 other end is connected with the input of each capacitor of Y-connection; Actuator links to each other with three-phase normally closed switch circuit K2, and each resistance tie point that three-phase normally closed switch circuit K2 one end is connected with triangle respectively links to each other, and the three-phase normally closed switch circuit K2 other end is connected with the input of each capacitor of Y-connection respectively.
2. the voltage sensor that arranges when the single-chip microcomputer input collects system voltage and surpasses prescribed limit, and single-chip microcomputer carries out automatic overvoltage protection by the threephase switch circuit K1 that actuator cuts off the compensator loop.
3. when system voltage recovered normal, the single-chip microcomputer time-delay dropped into the compensator loop automatically after 5 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104625811A CN103023042A (en) | 2012-11-16 | 2012-11-16 | Three-phase capacitor switching type reactive compensator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104625811A CN103023042A (en) | 2012-11-16 | 2012-11-16 | Three-phase capacitor switching type reactive compensator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103023042A true CN103023042A (en) | 2013-04-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104625811A Pending CN103023042A (en) | 2012-11-16 | 2012-11-16 | Three-phase capacitor switching type reactive compensator |
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| CN (1) | CN103023042A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018072125A1 (en) * | 2016-10-19 | 2018-04-26 | 周东 | Anti-corrosion low-voltage reactive power compensation cabinet |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101013688A (en) * | 2006-01-31 | 2007-08-08 | 夏普株式会社 | Electronic circuit module and method for fabrication thereof |
| CN201038781Y (en) * | 2007-03-27 | 2008-03-19 | 蒋少庆 | Three-phase split-supplement type composite switch |
| CN203205877U (en) * | 2012-11-16 | 2013-09-18 | 新安县电业公司 | Reactive power compensator |
-
2012
- 2012-11-16 CN CN2012104625811A patent/CN103023042A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101013688A (en) * | 2006-01-31 | 2007-08-08 | 夏普株式会社 | Electronic circuit module and method for fabrication thereof |
| CN201038781Y (en) * | 2007-03-27 | 2008-03-19 | 蒋少庆 | Three-phase split-supplement type composite switch |
| CN203205877U (en) * | 2012-11-16 | 2013-09-18 | 新安县电业公司 | Reactive power compensator |
Non-Patent Citations (1)
| Title |
|---|
| 张志伟: "低压智能无功补偿器的研究与设计", 《产业与科技论坛》, vol. 11, no. 14, 31 July 2012 (2012-07-31), pages 98 - 99 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018072125A1 (en) * | 2016-10-19 | 2018-04-26 | 周东 | Anti-corrosion low-voltage reactive power compensation cabinet |
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Application publication date: 20130403 |
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| RJ01 | Rejection of invention patent application after publication |