CN101860035A - Reactive compensation system of thyristor controlled magnetically controlled reactor - Google Patents
Reactive compensation system of thyristor controlled magnetically controlled reactor Download PDFInfo
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- CN101860035A CN101860035A CN201010169132A CN201010169132A CN101860035A CN 101860035 A CN101860035 A CN 101860035A CN 201010169132 A CN201010169132 A CN 201010169132A CN 201010169132 A CN201010169132 A CN 201010169132A CN 101860035 A CN101860035 A CN 101860035A
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- controlled reactor
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- thyristor
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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 invention discloses a reactive compensation system of a thyristor controlled magnetically controlled reactor, comprising an automatic control system, a magnetically controlled reactor and filter equipment, wherein the automatic control system is electrically connected with the magnetically controlled reactor; the filter equipment is composed of a plurality of reactive filter circuit branches; and the magnetically controlled reactor and the filter equipment are connected on three-phase alternating current in parallel. The system is characterized in that the reactive filter circuit branches are composed of filter capacitors and filter reactors which are mutually connected in series. According to reactive power sampling carried out on the grid system by a voltage sampling circuit and a current sampling circuit in the automatic control system, the signal is sent to a controller and the controller automatically adjusts the thyristor control angle of the magnetically controlled reactor to change the winding DC and control core saturation and realizes continuous adjustment of the reactance, thus realizing fast reactive power compensation. The system can quickly track reactive fluctuation of the grid or load and carry out random real-time compensation to maintain voltage stability.
Description
Technical field
The present invention relates to the harmonic wave control and the reactive power compensation technology field of three-phase alternating current electrical power trans mission/distribution system, is a kind of reactive compensation system of thyristor controlled magnetically controlled reactor specifically.
Background technology
In recent years, interconnected and remote, the large capacity transmission of electric power system have become an important trend of electric power industry development.But developing rapidly of electric power system also causes new contradiction and problem to become increasingly conspicuous, developing rapidly and constantly enlarge along with power electronic equipment in the utilization of industrial circle, a large amount of inductive loads that exist in the electrical network, such as motor, transformer and fluorescent lamp etc. all is inductive load, and these inductive loads have seriously reduced the power factor of electrical network in the process of putting into operation.Reactive power changes quite violent during some electric device work, not only cause fluctuation, flickering and the imbalance of system voltage, and inject a large amount of high order harmonic components to system, all electric equipments that are connected in the electrical network such as engine, transformer, motor, capacitor all there is the harm of differing in size, mainly be to produce the harmonic wave supplementary load loss, thereby increase the loss of transmission lines such as cable, had a strong impact on the quality of power supply of electric power system.
Traditional thyristor-controlled reactor (TCR) all adopts the delta connection mode, be the reactor La that all to connect an inductance value between per two phase lines be L, and the reactor winding (La1, La2) that this reactor has two electrical parameters to equate is in series, and the inductance value of each coil is 0.5L.And the thyristor valve of control usefulness is connected in the middle of two reactor windings.Two other terminal of reactor winding is connected to the line voltage of power supply.Though this reactive power compensator that reactor winding is divided into two can protect thyristor to avoid too high short circuit current when coil damages; when overvoltage takes place; it is little that thyristor bears overvoltage; but shortcoming is at total reactance value one regularly; the reactor winding that those two electrical parameters of intelligence and art equate increases production cost than adopting single reactor winding will consume more materials.
Summary of the invention
Deficiency at the prior art existence, technical problem to be solved by this invention is, provide a kind of simple in structure, with low cost, to idle carry out continuously adjustable, and follow the tracks of the reactive power fluctuation of electrical network or load fast and carry out randomness enforcement compensation, the reactive compensation system of the thyristor controlled magnetically controlled reactor of the three-phase voltage of filtering harmonic wave, systems stabilisation access point.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of reactive compensation system of thyristor controlled magnetically controlled reactor, comprise automatic control system, magnet controlled reactor and filter apparatus, described automatic control system is electrically connected with magnet controlled reactor, filter apparatus is made up of a plurality of passive filtering branch roads, and described magnet controlled reactor and filter apparatus are connected in parallel on the three-phase alternating current; Described passive filtering props up filtering capacitor, the filter reactor composition that route is contacted mutually.
The reactive compensation system of above-mentioned thyristor controlled magnetically controlled reactor, described filtering capacitor is provided with constructed parameter, and three parallel connections and filter reactor polyphone also are parallel with inductance coil on filter reactor.
The reactive compensation system of above-mentioned thyristor controlled magnetically controlled reactor, described automatic control system comprises voltage sampling circuit, current sampling circuit and controller, voltage sampling circuit and current sampling circuit be access controller respectively, and described controller is connected with magnet controlled reactor.
The reactive compensation system of above-mentioned thyristor controlled magnetically controlled reactor, described voltage sampling circuit is electrically connected with three-phase alternating current.
The reactive compensation system of above-mentioned thyristor controlled magnetically controlled reactor, all contact on described magnet controlled reactor, passive filtering branch road and the circuit that three-phase alternating current is electrically connected current transformer and A.C. contactor.
The advantage of the reactive compensation system of thyristor controlled magnetically controlled reactor of the present invention is: the passive filter and the magnet controlled reactor that is used for the balance inductive load that are used for reactive power compensation and harmonic, according to voltage sampling circuit in the automatic control system and current sampling circuit the reactive power of network system is taken a sample, signal is sent to controller, controller is regulated the thyristor pilot angle of magnet controlled reactor automatically, change winding direct current size control core sataration, realize that reactance value is adjustable continuously, thereby realize the quick compensating action of reactive power.The reactive compensation system of this thyristor controlled magnetically controlled reactor can be followed the tracks of the reactive power fluctuation of electrical network or load fast, and carries out random real-time compensation, and it is stable to keep voltage.Based on Thyristor Controlled principle and instantaneous reactive theory, uses advanced is vector algorithm efficiently, and then reach the fast automatic tracking load variations, the compensation network reactive power fluctuation, thereby the three-phase voltage that suppresses voltage fluctuation, voltage flicker, raising power factor, filtering harmonic wave, systems stabilisation access point rapidly, reduce the voltage and current tri-phase unbalance factor, enhanced system stability comprehensively solves power quality problem.
Description of drawings
Fig. 1 is the circuit theory diagrams of the reactive compensation system of thyristor controlled magnetically controlled reactor of the present invention.
Embodiment
Below in conjunction with drawings and the specific embodiments the present invention is described in further details;
As shown in Figure 1, the reactive compensation system of a kind of thyristor controlled magnetically controlled reactor of the present invention comprises automatic control system 1, magnet controlled reactor 2 and filter apparatus 3.Automatic control system 1 comprises voltage sampling circuit 11, current sampling circuit 12 and controller 13; Described voltage sampling circuit 11 and current sampling circuit 12 difference access controllers 13, controller 13 is connected with magnet controlled reactor 2; Voltage sampling circuit 11 is connected with three-phase alternating current 4, and isolating switch 7 is installed between three-phase alternating current 4 and the electrical network, controls the electric power break-make of whole working net.
On magnet controlled reactor 2, passive filtering branch road 31 and circuit that three-phase alternating current 4 is connected, all contact current transformer 5 and A.C. contactor 6.With on every branch road that three-phase alternating current 4 is connected circuit breaker 8 is set all.Magnet controlled reactor 2 adopts direct current magnetic assist principle, utilizes the DC excitation magnetization of autonomous induction unshakable in one's determination, changes magnetic permeability unshakable in one's determination, realizes the adjustable continuously of resistance value; Each passive filtering branch road 31 and characteristic of correspondence harmonic wave, its resistance value is very little, therefore can sponge the harmonic wave of wanting filtering, eliminate in the electrical network harmonic wave thus to power equipment 9, protective device, measuring instrument, harm that communications service is brought and interference, the passive filtering branch road is for fundamental frequency, all be capacitive, promptly be equivalent to a capacitive compensation device, when the introspection load increases in the electrical network, these inductive loads have seriously reduced the power factor of electrical network in the process of putting into operation, and that these are connected in parallel in the electrical network filter apparatus is required idle in can compensation network, improves power factor of electric network, improves the electrical network quality of power supply; Zero load or load is when becoming very little when electrical network, and it is nonadjustable during the idle output of filter apparatus, magnetite might produce the idle phenomenon of sending, but installed magnet controlled reactor 2 additional in the device, can pass through the perceptual idle of smooth adjustment magnet controlled reactor 2, capacitive reactive power with superfluous in the balance electrical network is in the acceptability limit line voltage all the time.
Passive filtering branch road 31 is according to system harmonics operating mode design installing, the effectively harmonic wave that exists in the filtering electrical network; Controller is by sampling to system voltage and current signal, and thyristor silicon controlled pulse signal in the output control triggering and conducting magnet controlled reactor 2, at any time the idle variation of tracking system, the idle output of smooth adjustment, simultaneously, controller 13 is determined the size that perception is idle by to the sampling of magnet controlled reactor 2 body output currents, makes power factor of electric network move closer in 1.Thereby when passive filtering equipment is to the mains by harmonics filtering,, finally realize flexible compensation by regulating magnet controlled reactor 2 perceptual idle outputs.
Certainly, above-mentioned explanation is not to be limitation of the present invention, and the present invention also is not limited to above-mentioned giving an example; those skilled in the art; in essential scope of the present invention, the variation of making, remodeling, interpolation or replacement all should belong to protection scope of the present invention.
Claims (5)
1. the reactive compensation system of a thyristor controlled magnetically controlled reactor, comprise automatic control system, magnet controlled reactor and filter apparatus, described automatic control system is electrically connected with magnet controlled reactor, filter apparatus is made up of a plurality of passive filtering branch roads, and described magnet controlled reactor and filter apparatus are connected in parallel on the three-phase alternating current; It is characterized in that: described passive filtering props up filtering capacitor, the filter reactor composition that route is contacted mutually.
2. the reactive compensation system of thyristor controlled magnetically controlled reactor according to claim 1, it is characterized in that: described filtering capacitor is provided with constructed parameter, and three parallel connections and filter reactor polyphone also are parallel with inductance coil on filter reactor.
3. the reactive compensation system of thyristor controlled magnetically controlled reactor according to claim 2, it is characterized in that: described automatic control system comprises voltage sampling circuit, current sampling circuit and controller, voltage sampling circuit and current sampling circuit be access controller respectively, and described controller is connected with magnet controlled reactor.
4. the reactive compensation system of thyristor controlled magnetically controlled reactor according to claim 3, it is characterized in that: described voltage sampling circuit is electrically connected with three-phase alternating current.
5. the reactive compensation system of thyristor controlled magnetically controlled reactor according to claim 4 is characterized in that: all contact on described magnet controlled reactor, passive filtering branch road and the circuit that three-phase alternating current is electrically connected current transformer and A.C. contactor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201010169132A CN101860035A (en) | 2010-05-11 | 2010-05-11 | Reactive compensation system of thyristor controlled magnetically controlled reactor |
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| CN201010169132A CN101860035A (en) | 2010-05-11 | 2010-05-11 | Reactive compensation system of thyristor controlled magnetically controlled reactor |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102055195A (en) * | 2010-12-14 | 2011-05-11 | 广西电网公司南宁供电局 | Method for controlling reactive voltages of transformer substation based on magnetic control reactor (MCR) |
| CN102270846A (en) * | 2011-08-22 | 2011-12-07 | 珠海市汇通电气有限公司 | High power factor treatment device for user harmonic |
| CN102810867A (en) * | 2011-05-30 | 2012-12-05 | 青岛海电电气有限公司 | Dynamic reactive compensation system based on magnetic control electric reactor |
| CN103199535A (en) * | 2013-04-08 | 2013-07-10 | 苏州士林电机有限公司 | Dynamic compensation filtering module device |
| CN103269077A (en) * | 2013-05-29 | 2013-08-28 | 国家电网公司 | Harmonic suppression device of magnetically controlled reactor |
| WO2014169618A1 (en) * | 2013-04-19 | 2014-10-23 | 国家电网公司 | Joint regulator test device for magnetically controlled shunt reactor |
| CN104300549A (en) * | 2014-08-13 | 2015-01-21 | 上海致维电气有限公司 | Reactive power compensation device |
| CN105576668A (en) * | 2014-10-11 | 2016-05-11 | 湖南电器研究所 | Passive filtering and reactive compensation device based on magnetic control tuning |
| CN110912159A (en) * | 2019-11-12 | 2020-03-24 | 许继变压器有限公司 | Three-phase unbalanced load governing system |
| CN112086974A (en) * | 2020-08-05 | 2020-12-15 | 国网浙江省电力有限公司杭州供电公司 | Regional substation reactive voltage control system based on reactive power continuous adjustment |
| CN113036775A (en) * | 2021-02-25 | 2021-06-25 | 杭州银湖电气设备有限公司 | Structure based on magnetic control reactor type hybrid dynamic compensation and control method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201398081Y (en) * | 2009-02-20 | 2010-02-03 | 杭州银湖电气设备有限公司 | Low-voltage magnetic control type filtering powerless dynamic compensation device |
-
2010
- 2010-05-11 CN CN201010169132A patent/CN101860035A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201398081Y (en) * | 2009-02-20 | 2010-02-03 | 杭州银湖电气设备有限公司 | Low-voltage magnetic control type filtering powerless dynamic compensation device |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102055195A (en) * | 2010-12-14 | 2011-05-11 | 广西电网公司南宁供电局 | Method for controlling reactive voltages of transformer substation based on magnetic control reactor (MCR) |
| CN102055195B (en) * | 2010-12-14 | 2012-11-28 | 广西电网公司南宁供电局 | Method for controlling reactive voltages of transformer substation based on magnetic control reactor (MCR) |
| CN102810867A (en) * | 2011-05-30 | 2012-12-05 | 青岛海电电气有限公司 | Dynamic reactive compensation system based on magnetic control electric reactor |
| CN102270846A (en) * | 2011-08-22 | 2011-12-07 | 珠海市汇通电气有限公司 | High power factor treatment device for user harmonic |
| CN103199535A (en) * | 2013-04-08 | 2013-07-10 | 苏州士林电机有限公司 | Dynamic compensation filtering module device |
| WO2014169618A1 (en) * | 2013-04-19 | 2014-10-23 | 国家电网公司 | Joint regulator test device for magnetically controlled shunt reactor |
| CN103269077A (en) * | 2013-05-29 | 2013-08-28 | 国家电网公司 | Harmonic suppression device of magnetically controlled reactor |
| CN103269077B (en) * | 2013-05-29 | 2016-02-03 | 国家电网公司 | A kind of magnet controlled reactor harmonic suppression apparatus |
| CN104300549A (en) * | 2014-08-13 | 2015-01-21 | 上海致维电气有限公司 | Reactive power compensation device |
| CN105576668A (en) * | 2014-10-11 | 2016-05-11 | 湖南电器研究所 | Passive filtering and reactive compensation device based on magnetic control tuning |
| CN110912159A (en) * | 2019-11-12 | 2020-03-24 | 许继变压器有限公司 | Three-phase unbalanced load governing system |
| CN112086974A (en) * | 2020-08-05 | 2020-12-15 | 国网浙江省电力有限公司杭州供电公司 | Regional substation reactive voltage control system based on reactive power continuous adjustment |
| CN113036775A (en) * | 2021-02-25 | 2021-06-25 | 杭州银湖电气设备有限公司 | Structure based on magnetic control reactor type hybrid dynamic compensation and control method |
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Application publication date: 20101013 |