CN104466975B - High-reliability compensation reactor - Google Patents
High-reliability compensation reactor Download PDFInfo
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- CN104466975B CN104466975B CN201410578293.1A CN201410578293A CN104466975B CN 104466975 B CN104466975 B CN 104466975B CN 201410578293 A CN201410578293 A CN 201410578293A CN 104466975 B CN104466975 B CN 104466975B
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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
Abstract
The invention discloses a high-reliability compensation reactor. The high-reliability compensation reactor comprises a power module, an energy taking module, a controller, a trigger module, a trigger feedback module and a connection point, wherein the power module is connected with a mains supply and used for receiving electric energy from a power grid; the energy taking module comprises a first voltage-regulator tube and a second voltage-regulator tube which are connected in series, and the first voltage-regulator tube converts a DC voltage from the power module into a 12-V voltage; the controller is connected to a photoelectric interface module and used for regulating the switching angle of the reactor according to the reactive value in the power grid; the trigger module is connected to a gate pole of a thyristor and used for amplifying synchronous current signals and converting the synchronous current signals into current pulses driving the gate pole of the thyristor; the trigger feedback module is used for collecting voltages and gate voltages at the two ends of the thyristor to generate voltage-state feedback signals; the connection point is used for indicating that a third light emitting diode in a trigger state and a seventh resistor are connected in series and then connected to a second diode and a third diode. According to the high-reliability compensation reactor, the thyristor can be monitored and protected conveniently in real time, and the high-reliability compensation reactor has the advantages of being accurate in triggering, good in stability and low in power consumption, overcomes large currents in a main circuit and has certain anti-interference performance.
Description
Technical field
The present invention relates to a kind of high reliability compensation reactor, belong to reactor technical field.
Background technology
Due to the lack of uniformity of China's energy Yu power load distributing, it is aobvious prominent that the dynamic reactive power in electrical network supports problem day, and electric energy conveying capacity is restricted.Simultaneously because large capacity single phase load and a large amount of uses of unbalanced load, the three-phase imbalance problem also day of electrical network is aobvious prominent.For administering the problems referred to above, power system introduces reactive power compensator and carries out reactive-load compensation, magnet controlled reactor (MCR) be conventional always, it supports at dynamic reactive, administer in terms of electrical network three-phase imbalance and played an important role.Comparing with active equipment, it has big advantage in terms of stability and compensation capacity.Wherein, the reliable triggering of IGCT is one of key technology of whole device.The most conventional IGBT group mode has electromagnetism triggering mode, photoelectricity triggering mode and light triggering mode.Traditional electromagnetism triggering mode cannot monitor the triggering state of IGCT in real time, cannot the most accurately grasp actual triggering situation, is not easy to the accuracy of realization triggering and the protection to IGCT.
Summary of the invention
It is an object of the invention to provide a kind of high reliability compensation reactor, this magnet controlled reactor monitors the most in real time and protects, and have triggering accurately, good stability, power consumption little, overcome the big electric current in main circuit, there is certain interference free performance.
For reaching above-mentioned purpose, the technical solution used in the present invention is: a kind of high reliability compensation reactor, described magnet controlled reactor includes reactor and for controlling the IGCT of reactor switching angle；
Also including: connect the power module of civil power, for receiving the electric energy from electrical network, it includes transformator and the 1st diode, and described transformator obtains DC voltage by removing positive half cycle through described 1st diode again after the voltage step-down of civil power；
Take energy module, described taking module can include the first stabilivolt of series connection, the second stabilivolt, DC voltage from described power module is converted into 12V voltage by this first stabilivolt, 12V photovoltaic conversion from the first stabilivolt is 5V voltage by described second stabilivolt, the contact of described first stabilivolt and the second stabilivolt as the first outfan of powering to the 1st audion and the 2nd diode, the second stabilivolt away from one end of the first stabilivolt as the 3rd audion and the second outfan of optic electric interface module for power supply；
Optic electric interface module, it includes optical receiving circuit unit and optical transmission circuit unit, and optical receiving circuit unit is for being converted into synchronizing current signal by fetching the light pulse signal from controller；Optical transmission circuit unit is for being converted into optical signal transmission to described controller from the voltage status feedback signal triggering feedback module；
It is connected to the controller of optic electric interface module, for adjusting described reactor switching angle according to idle amount in electrical network；
nullIt is connected to the trigger module of described gate circuit transistor gate，Synchronizing current signal is amplified the current impulse being converted to drive gate circuit transistor gate，It include series connection by the 2nd audion、3rd audion composition preamplifying circuit and by the 1st audion、2nd diode and the rear class amplifying circuit of the 3rd Diode series composition，Described 2nd audion、The 3rd respective base stage of audion be connected to through the 4th resistance and the 3rd resistance respectively described in take can the second outfan of module，The junction point of described 2nd diode cathode and the 3rd diode cathode is connected to described gate circuit transistor gate，Synchronizing current signal from optic electric interface module drives it to drive the 2nd audion successively after turning on by the 3rd transistor base、1st triode ON，Thus enter IGCT gate leve by the junction point output of the 2nd diode and the 3rd diode for the synchronous triggering signal controlling reactor switching angle；
Trigger feedback module, be used for gathering the voltage at described IGCT two ends and gate voltage thus generate voltage status feedback signal；One protection trigger module is between described triggering feedback module and IGCT, according to from triggering the feedback module voltage status feedback signal described thuristor working state of adjustment；One is connected to the 2nd diode and the junction point of the 3rd diode after the 3rd light emitting diode indicating triggering state and the 7th resistant series.
In technique scheme, further improvement project is as follows:
1, in such scheme, one the 1st electric capacity and described transformers connected in parallel, it is used for filtering AC influence.
2, in such scheme, between described first outfan and ground connection, bridging has the 2nd electric capacity, and between the second outfan and ground connection, bridging has the 3rd electric capacity.
Owing to technique scheme is used, the present invention compared with prior art has following advantages and an effect:
High reliability compensation reactor of the present invention; it is compared by the voltage and gate voltage gathering IGCT two ends; if IGCT both end voltage is more than its rated voltage; and judge that IGCT does not turns on by gate voltage; now; protection triggers circuit and generation is triggered signal, forces turn on thyristors to protect IGCT, prevents it by over-voltage breakdown；Secondly, it is positioned at electrical network hot side, gate circuit transistor gate and optic electric interface module and is provided with trigger module, uses optical fiber to complete the isolation of signal transmission and high electronegative potential, no matter is better than the equipment of electromagnetism triggering mode in pulse quality or isolation performance；Again, circuit design of the present invention can obtain the working power stable, ripple is little from equipment primary side, in more severe electromagnetic environment, overcome the big electric current in main circuit, IGCT cut-off the strong electromagnetic that circuit is caused, there is certain interference free performance；Again, magnet controlled reactor of the present invention, its branch road connected by the 1st resistance and the 1st light emitting diode is in parallel with described 2nd electric capacity, the branch road connected by the 2nd resistance and the 2nd light emitting diode is in parallel with described 3rd electric capacity, is connected to the 2nd diode and the junction point of the 3rd diode after the 3rd light emitting diode indicating triggering state and the 7th resistant series；Realize the triggering of thyristor module, it is ensured that trigger accurate, timely and synchronize.
Accompanying drawing explanation
Accompanying drawing 1 is for implementing high reliability compensation reactor structure principle chart of the present invention；
Accompanying drawing 2 is for implementing power module circuitry figure of the present invention；
Accompanying drawing 3 takes energy module circuit diagram for implementing the present invention；
Accompanying drawing 4 is for implementing trigger module circuit diagram of the present invention.
In the figures above: 1, reactor；2, IGCT；3, power module；4, taking can module；5, optic electric interface module；51, optical receiving circuit unit；52, optical transmission circuit unit；6, controller；7, trigger module；8, feedback module is triggered；9, protection trigger module.
Detailed description of the invention
Below in conjunction with the accompanying drawings and embodiment the invention will be further described:
Embodiment: a kind of high reliability compensation reactor, as shown in accompanying drawing 1 ~ 4, described magnet controlled reactor includes reactor 1 and for controlling the IGCT 2 of reactor 1 switching angle；
Also including: connect the power module 3 of civil power, for receiving the electric energy from electrical network, it includes that transformator T1 and the 1st diode D1, described transformator T1 obtain DC voltage by removing positive half cycle through described 1st diode D1 again after the voltage step-down of civil power,；
Take energy module 4, the described energy module 4 that takes includes the first stabilivolt U1 of series connection, second stabilivolt U2, this first stabilivolt U1 will be converted into 12V voltage from the DC voltage of described power module 3, 12V photovoltaic conversion from the first stabilivolt U1 is 5V voltage by described second stabilivolt U2, the contact of described first stabilivolt U1 and the second stabilivolt U2 is as the 1st audion Q1, the first outfan that 2nd diode D2 powers, second stabilivolt U2 away from one end of the first stabilivolt U1 as the 3rd audion Q3, second outfan of optic electric interface module for power supply；
Optic electric interface module 5, it includes that optical receiving circuit unit 51 and optical transmission circuit unit 52, optical receiving circuit unit 51 are used for being converted into synchronizing current signal by fetching from the light pulse signal of controller 6；Optical transmission circuit unit 52 is for being converted into optical signal transmission to described controller 6 from the voltage status feedback signal triggering feedback module；
It is connected to the controller 6 of optic electric interface module 5, for adjusting described reactor 1 switching angle according to idle amount in electrical network；
nullIt is connected to the trigger module 7 of described IGCT 2 gate pole，Synchronizing current signal is amplified the current impulse being converted to drive IGCT 2 gate pole，It include series connection by the 2nd audion Q2、3rd audion Q3 composition preamplifying circuit and by the 1st audion Q1、The rear class amplifying circuit that 2nd diode D2 and the 3rd diode D3 is composed in series，Described 2nd audion Q2、The 3rd respective base stage of audion Q3 be connected to through the 4th resistance R4 and the 3rd resistance R3 respectively described in take can the second outfan of module 4，The junction point of described 2nd diode D2 negative pole and the 3rd diode D3 negative pole states IGCT 2 gate pole described in being connected to，From optic electric interface module 5 synchronizing current signal by the 3rd audion Q3 base drive its conducting after drive the 2nd audion Q2 successively、1st audion Q1 conducting，Thus enter IGCT 2 gate leve by the junction point output of the 2nd diode D2 and the 3rd diode D3 for the synchronous triggering signal controlling reactor 1 switching angle；
Trigger feedback module 8, be used for gathering the voltage at described IGCT 2 two ends and gate voltage thus generate voltage status feedback signal.
One protection trigger module 9 is between described triggering feedback module 8 and IGCT 2, according to from triggering feedback module 8 voltage status feedback signal described IGCT 2 duty of adjustment；
One the 1st electric capacity C1 is in parallel with described transformator T1, is used for filtering AC influence.
Between above-mentioned first outfan and ground connection, bridging has the 2nd electric capacity C2, and between the second outfan and ground connection, bridging has the 3rd electric capacity C3.
One branch road connected by the 1st resistance and the 1st LED 1 is in parallel with described 2nd electric capacity C2, the 2nd resistance and the 2nd LED 2 branch road connected is in parallel with described 3rd electric capacity C3.
One for indicating the 3rd LED 3 of triggering state to be connected to the 2nd diode D2 and the junction point of the 3rd diode D3 after connecting with the 7th resistance R7.
The present embodiment reactive compensator of electrical network work process is as follows.
Use the advanced photoelectricity triggering mode monitored.Use photoelectricity trigger and IGCT opening state can be monitored in real time, feed back to control system and carry out better monitoring and protection.The realization of the present embodiment mainly has techniques below difficult point: 1. thyristor trigger board is that realization is effectively isolated needs from equipment primary side acquirement working power；2. the present embodiment can monitor the triggering state of MCR valve group IGCT in real time, and feeds back to Ore-controlling Role, it is achieved the more triggering of precise and safety；3. protection trigger circuit can IGCT do not turn on state bear overvoltage time, forced-triggered its conducting to protect IGCT.
The monitored trigger board of described applicable magnet controlled reactor (MCR) type reactive-load compensator includes taking energy module, optical-electric module, trigger module, triggering feedback circuit and trigger protection circuit.
1. the monitored trigger board of the present embodiment magnet controlled reactor MCR is in operation, and takes and module can obtain the required working power of system work from hot side；
2. receive the optical signal from control system optical-fibre channel by the receiving portion of optical-electric module, and be translated in signal of telecommunication entrance trigger module；Trigger the signal that feedback circuit is sent here simultaneously, through the light emission part of optical-electric module, be translated into optical signal and send control system back to, it is achieved the monitoring to IGBT group state；
3. weak pulse signal is amplified the current impulse being converted to meet triggering requirement by the circuit in subsequent triggers module, and the gate leve exporting IGCT triggers thyristor controlled series compensation；
4. protection triggering circuit is compared by the voltage and gate voltage gathering IGCT two ends; if IGCT both end voltage is more than its rated voltage; and judge that IGCT does not turns on by gate voltage; now; protection triggers circuit and generation is triggered signal; force turn on thyristors to protect IGCT, prevent it by over-voltage breakdown；
Owing to have employed above technical scheme, the present embodiment provides the benefit that: the operating current of (1) circuit board own is little, low in energy consumption, on main circuit work substantially without impact；(2) due to have employed protection trigger circuit can protect IGCT, prevent it by over-voltage breakdown；(3) the triggering synchronicity of signal, accuracy and promptness are achieved owing to have employed photoelectricity triggering mode；(4) owing to have employed triggering feedback circuit, IGBT group state can be returned control system, monitor the most in real time and protect；(5) low cost, hardware circuit is simple, it is easy to accomplish.
Above-described embodiment only for technology design and the feature of the present invention are described, its object is to allow person skilled in the art will appreciate that present disclosure and to implement according to this, can not limit the scope of the invention with this.All equivalence changes made according to spirit of the invention or modification, all should contain within protection scope of the present invention.
Claims (3)
1. a high reliability compensation reactor, described high reliability compensation reactor includes reactor (1) and is used for controlling the IGCT (2) of reactor (1) switching angle, it is characterised in that:
Also including: connect the power module (3) of civil power, for receiving the electric energy from electrical network, it includes transformator and the 1st diode, and described transformator obtains DC voltage by removing positive half cycle through described 1st diode again after the voltage step-down of civil power；
Take energy module (4), described taking module (4) can include the first stabilivolt of series connection, the second stabilivolt, this first stabilivolt will be converted into 12V voltage from the DC voltage of described power module (3), 12V photovoltaic conversion from the first stabilivolt is 5V voltage by described second stabilivolt, the contact of described first stabilivolt and the second stabilivolt as the first outfan of powering to the 1st audion and the 2nd diode, the second stabilivolt away from one end of the first stabilivolt as the 3rd audion and the second outfan of optic electric interface module for power supply；
Optic electric interface module (5), it includes optical receiving circuit unit (51) and optical transmission circuit unit (52), and optical receiving circuit unit (51) is for being converted into synchronizing current signal by fetching the light pulse signal from controller (6)；Optical transmission circuit unit (52) is for being converted into optical signal transmission to described controller (6) from the voltage status feedback signal triggering feedback module；
It is connected to the controller (6) of optic electric interface module (5), for adjusting described reactor (1) switching angle according to idle amount in electrical network；
nullIt is connected to the trigger module (7) of described IGCT (2) gate pole，Synchronizing current signal is amplified the current impulse being converted to drive IGCT (2) gate pole，It include series connection by the 2nd audion、3rd audion composition preamplifying circuit and by the 1st audion、2nd diode and the rear class amplifying circuit of the 3rd Diode series composition，Described 2nd audion、The 3rd respective base stage of audion be connected to through the 4th resistance and the 3rd resistance respectively described in take can module (4) the second outfan，The junction point of described 2nd diode cathode and the 3rd diode cathode is connected to described IGCT (2) gate pole，Synchronizing current signal from optic electric interface module (5) drives it to drive the 2nd audion successively after turning on by the 3rd transistor base、1st triode ON，Thus it is used for controlling synchronous triggering signal entrance IGCT (2) gate leve of reactor (1) switching angle by the junction point output of the 2nd diode and the 3rd diode；
Trigger feedback module (8), be used for gathering the voltage at described IGCT (2) two ends and gate voltage thus generate voltage status feedback signal；One protection trigger module (9) is positioned between described triggering feedback module (8) and IGCT (2), according to from triggering feedback module (8) voltage status feedback signal adjustment described IGCT (2) duty；One is connected to the 2nd diode and the junction point of the 3rd diode after the 3rd light emitting diode indicating triggering state and the 7th resistant series.
High reliability compensation reactor the most according to claim 1, it is characterised in that: one the 1st electric capacity and described transformers connected in parallel, it is used for filtering AC influence.
High reliability compensation reactor the most according to claim 1, it is characterised in that: between described first outfan and ground connection, bridging has the 2nd electric capacity, and between the second outfan and ground connection, bridging has the 3rd electric capacity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410578293.1A CN104466975B (en) | 2013-01-23 | 2013-01-23 | High-reliability compensation reactor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410578293.1A CN104466975B (en) | 2013-01-23 | 2013-01-23 | High-reliability compensation reactor |
| CN201310025325.0A CN103138274B (en) | 2013-01-23 | 2013-01-23 | Monitorable magnetically-controlled reactor |
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| CN201310025325.0A Division CN103138274B (en) | 2013-01-23 | 2013-01-23 | Monitorable magnetically-controlled reactor |
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| CN104466975A CN104466975A (en) | 2015-03-25 |
| CN104466975B true CN104466975B (en) | 2017-01-11 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2712229B2 (en) * | 1988-02-12 | 1998-02-10 | 日新電機株式会社 | Reactive power compensator using inverter |
| CN201328101Y (en) * | 2008-11-05 | 2009-10-14 | 江苏省电力公司扬州供电公司 | Safe and reliable outer exciting magnetic control electric reactor device |
| CN201774450U (en) * | 2010-07-22 | 2011-03-23 | 荣信电力电子股份有限公司 | Thyristor triggering device of magnetic control reactor |
| CN102074960A (en) * | 2010-12-30 | 2011-05-25 | 中电普瑞科技有限公司 | Thyristor valve control type controllable shunt reactor device adopting valve series type configuration |
-
2013
- 2013-01-23 CN CN201410578293.1A patent/CN104466975B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2712229B2 (en) * | 1988-02-12 | 1998-02-10 | 日新電機株式会社 | Reactive power compensator using inverter |
| CN201328101Y (en) * | 2008-11-05 | 2009-10-14 | 江苏省电力公司扬州供电公司 | Safe and reliable outer exciting magnetic control electric reactor device |
| CN201774450U (en) * | 2010-07-22 | 2011-03-23 | 荣信电力电子股份有限公司 | Thyristor triggering device of magnetic control reactor |
| CN102074960A (en) * | 2010-12-30 | 2011-05-25 | 中电普瑞科技有限公司 | Thyristor valve control type controllable shunt reactor device adopting valve series type configuration |
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| CN104466975A (en) | 2015-03-25 |
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