CN201975797U - Magnetic valve type controllable reactor excitation control device - Google Patents
Magnetic valve type controllable reactor excitation control device Download PDFInfo
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- CN201975797U CN201975797U CN2011201327351U CN201120132735U CN201975797U CN 201975797 U CN201975797 U CN 201975797U CN 2011201327351 U CN2011201327351 U CN 2011201327351U CN 201120132735 U CN201120132735 U CN 201120132735U CN 201975797 U CN201975797 U CN 201975797U
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- magnetic valve
- branch
- type controllable
- valve type
- controllable reactor
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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 utility model discloses a magnetic valve type controllable reactor excitation control device which comprises a box body, wherein a photoelectric trigger circuit, a pair of parallel magnetic valves and a follow current diode are arranged in the box body, wherein each magnetic valve is connected with a fuse in series to form a branch; the follow current diode independently forms a branch, and the other branch comprises a lead; and a resistor is connected between a follow current diode branch and a lead branch. Low-voltage direct current is changed to quickly, smoothly and polelessly adjust the impedance of a main circuit so as to change inductive reactive power current in the main circuit. The requirement on compensating bus reactive power is achieved by cooperating with capacitance compensation and filter branches, and meanwhile, the function of stabilizing the bus voltage is achieved.
Description
Technical field
The utility model belongs to fields such as electroporation, electronic technology, optical communication technology, relate to a kind of reactor excitation controlling device, the particularly a kind of magnetic valve type controllable reactor excitation controlling device that can follow the tracks of compensation, burning voltage specially at the fast load of big, the idle variation of voltage fluctuation automatically fast.
Background technology
Along with various arc furnace and a large amount of application of power electronic equipment in industry, the problem of the quality of power supply becomes more and more outstanding, reactive power impact fast, voltage fluctuation and flickering and a large amount of Harmonic Interference have seriously influenced the safety and economic operation of electrical network and subscriber equipment.
Adopt TCR type SVC to solve this type of problem in the market, but there is following weak point in such Equipment Control valve:
1, control valve is serially connected in the conditioning equipment; it is bigger to bear electric current and voltage; and there is not the high voltage valve device in the market; can only use the low-voltage valve to carry out connection in series-parallel and reach requirement; technological requirement is than higher, and wherein a certain as voltage breakdown, then causes chain puncture easily; therefore safeguard measure is also relatively complicated, involves great expense.
2, owing to series-parallel cause, this control valve floor space is bigger, and the heat dissipation capacity height need be placed in special air-conditioned room and cool off.
3, under the voltage levels, as use this valve group, then need much more extremely connection in series-parallel, and voltage bigger than normal a little all can cause fault and breakdown to it, can not finish during practical application, therefore can only be applicable to the mesolow grade, limitation is bigger.
Summary of the invention
At defective or deficiency that above prior art exists, the purpose of this utility model is, a kind of magnetic valve type controllable reactor excitation controlling device is provided, and this device can move, control high voltage output and can put arbitrarily under low-voltage.
In order to realize above-mentioned task, the technical solution that the utility model adopts is:
A kind of magnetic valve type controllable reactor excitation controlling device, comprise casing, it is characterized in that, be provided with an optical trigger, a pair of magnet valve in parallel and fly-wheel diode in the casing, wherein, be serially connected with fuse on each magnet valve and constitute branch road, fly-wheel diode constitutes branch road separately, prop up the route lead in addition and constitute, be connected with resistance between fly-wheel diode branch road and the lead branch road.
Other characteristics of the present utility model are, described optical trigger utilizes the reactor tap voltage, need not external power supply, have a style of one's own.
Described optical trigger comprises power circuit, photoelectric switching circuit and thyristor gating circuit.
Magnetic valve type controllable reactor excitation controlling device of the present utility model, the technique effect that brings is:
1, the magnet valve group is connected in parallel in the circuit system, need not bear the big electric current of circuit system, and part in parallel only is the sub-fraction in loop, though therefore at high potential, but be operated in low-voltage state, and isolate fully with the low spot position, well guaranteed the reliability service of equipment by the photoelectricity isolation.
2, because the magnet valve group is operated under little electric current, the low-voltage, so magnet valve do not need connection in series-parallel, singly only just can satisfy job requirement, low in energy consumption, heat dissipation capacity is little, and floor space is little.Only need a little chest just can satisfy installation requirement, and all can install indoor and outdoor.
3, this magnet valve can satisfy equipment moving under the electric pressure arbitrarily, not retrained by voltage, voltage levels particularly, but also there is not the quick adjustment device of a maturation now on the market, so market prospects are very big.
Description of drawings
The primary circuit figure that Fig. 1 uses in the power transformation system for magnet valve.
Fig. 2 is magnetic valve type controllable reactor excitation controlling device and MCR body connection diagram.
Fig. 3 is a magnetic valve type controllable reactor excitation controlling device equivalent circuit diagram: wherein: K1, K2 are the control magnet valve, and N is a coil windings.
Fig. 4 is that K1, K2 take turns conducting figure.
Fig. 5 is optical trigger figure.
The utility model is described in further detail below in conjunction with embodiment that accompanying drawing and inventor provide.
Embodiment
The design principle of magnetic valve type controllable reactor excitation controlling device of the present utility model is, by changing the size of low voltage direct current, fast, thereby level and smooth electrodeless adjusting major loop impedance changes the size of perceptual reactive current in the major loop, cooperate the capacitor that is parallel on the bus, reach the demand of compensation bus reactive power, the power factor of dynamic response and raising bus reaches the function of stablizing busbar voltage simultaneously.
Referring to Fig. 2, according to the technical solution of the utility model, present embodiment provides a kind of magnetic valve type controllable reactor excitation controlling device, comprises casing, is provided with optical trigger in the casing, a pair of magnet valve thyristor, fly-wheel diode, fuse and resistance.These devices constitute 4 parallel branches, and promptly fuse of serial connection constitutes branch road on each magnet valve, and fly-wheel diode constitutes branch road separately, prop up the route lead in addition and constitute, and are connected with resistance between fly-wheel diode branch road and the lead branch road.
The magnetic valve type controllable reactor excitation controlling device is gathered electric current and voltage in real time and is calculated, draw current voltage and idle value, controller changes into light signal earlier with the signal of telecommunication, light signal returns the angle of flow of controlling the magnet valve thyristor for the signal of telecommunication to circuits for triggering, conducting number of degrees difference, size of current by the magnet valve thyristor changes thereupon, thereby changes the magnetic saturation of reactor, the inductance value of smooth adjustment controlled reactor.The magnet valve thyristor only need bear low pressure, and safety and stability is the advantage on know-why.
The primary circuit figure that Fig. 1 uses in the power transformation system for magnet valve.Wherein QL is the inductive load that magnet valve will be regulated, QC is capacitance compensation and the filter branch that matches, and QF is a load branch, when detecting the idle variation of system voltage, capacitance compensation and filter branch carry out rough condition earlier, and MCR is according to circumstances fast meticulous then follows the tracks of adjusting.
Referring to Fig. 2, the diagram left side is a magnetic valve type controllable reactor excitation controlling device of the present utility model, the MCR reactor of right side for regulating, wherein terminal K1, D2; K2, D2 are magnet valve thyristor break-make direct current usefulness, K1, D1; The double power supply of doing circuits for triggering of K2, D1, D1, D2 afterflow, G1, G2 trigger for the magnet valve gate circuit transistor gate.
As seen from Figure 3, as if K1, not conductings of K2, because the symmetry of structure, reactor and unloaded transformer do not have difference.Suppose that supply voltage is in positive half cycle, thyristor K1 bears forward voltage, and K2 bears reverse voltage.If the K1 conducting (2 equipotentials of a and b) that is triggered, supply voltage provides DC control electric current for the N1 coil to circuit by the number of turn, shown in equivalent circuit Fig. 4 (left side) after being the coil self coupling transformation of N1/N(N=2N1+2N2) through no-load voltage ratio; If supply voltage is in negative half period, when the K2 conducting, in the loop, produce the DC control electric current equally, and the direction of the Control current that is produced is the same during with the K1 conducting, shown in equivalent circuit Fig. 4 (right side), promptly in a power frequency period of power supply, two silicon controlleds take turns conducting and have played the full-wave rectification effect, and sustained diode plays the afterflow effect, is beneficial to the shutoff of thyristor.
Fig. 5 is the optical trigger schematic diagram, and this circuit is made up of power circuit, photoelectric switching circuit, thyristor gating circuit.Power circuit is by power transformer (T1), rectifier diode D1(IN4007), three terminal regulator VAR1(LM7812), three terminal regulator VAR2(LM7805), electrochemical capacitor C1, C2, C3 etc. form, and 12V and 5V power supply are provided.Photoelectric switching circuit is mainly used HFBR-2521 fiber optic receiver spare, and light trigger pulse is become the level triggers pulse.Thyristor gating circuit is mainly by transistor Q1(S9013), Q2(TIP122), Q3(IP127), diode D2(IN4007), D3(IN4007), LED luminous tube, resistance, electric capacity etc. form.Circuits for triggering triggered thyristor afterwards to the triggering level amplification.
Claims (3)
1. magnetic valve type controllable reactor excitation controlling device, comprise casing, it is characterized in that, be provided with an optical trigger, a pair of magnet valve in parallel and fly-wheel diode in the casing, wherein, be serially connected with fuse on each magnet valve and constitute branch road, fly-wheel diode constitutes branch road separately, prop up the route lead in addition and constitute, be connected with resistance between fly-wheel diode branch road and the lead branch road.
2. magnetic valve type controllable reactor excitation controlling device as claimed in claim 1 is characterized in that described optical trigger utilizes the reactor tap voltage, need not external power supply.
3. magnetic valve type controllable reactor excitation controlling device as claimed in claim 1 is characterized in that described optical trigger comprises power circuit, photoelectric switching circuit and thyristor gating circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201327351U CN201975797U (en) | 2011-04-29 | 2011-04-29 | Magnetic valve type controllable reactor excitation control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201327351U CN201975797U (en) | 2011-04-29 | 2011-04-29 | Magnetic valve type controllable reactor excitation control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201975797U true CN201975797U (en) | 2011-09-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201327351U Expired - Fee Related CN201975797U (en) | 2011-04-29 | 2011-04-29 | Magnetic valve type controllable reactor excitation control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201975797U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102412583A (en) * | 2011-11-23 | 2012-04-11 | 中国船舶重工集团公司第七一二研究所 | Excitation control box for magnetically controlled reactor |
| CN103269077A (en) * | 2013-05-29 | 2013-08-28 | 国家电网公司 | Harmonic suppression device of magnetically controlled reactor |
-
2011
- 2011-04-29 CN CN2011201327351U patent/CN201975797U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102412583A (en) * | 2011-11-23 | 2012-04-11 | 中国船舶重工集团公司第七一二研究所 | Excitation control box for magnetically controlled reactor |
| CN102412583B (en) * | 2011-11-23 | 2014-08-13 | 中国船舶重工集团公司第七一二研究所 | Excitation control box for magnetically controlled 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110914 Termination date: 20200429 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |