CN104269865A - Magnetic controllable reactor with anti-interference function - Google Patents
Magnetic controllable reactor with anti-interference function Download PDFInfo
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- CN104269865A CN104269865A CN201410578079.6A CN201410578079A CN104269865A CN 104269865 A CN104269865 A CN 104269865A CN 201410578079 A CN201410578079 A CN 201410578079A CN 104269865 A CN104269865 A CN 104269865A
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- voltage
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- diode
- thyristor
- triode
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/18—Arrangements for adjusting, eliminating or compensating reactive power in networks
- H02J3/1821—Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators
- H02J3/1835—Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators with stepless control
- H02J3/1864—Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators with stepless control wherein the stepless control of reactive power is obtained by at least one reactive element connected in series with a semiconductor switch
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
- H03K17/78—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used using opto-electronic devices, i.e. light-emitting and photoelectric devices electrically- or optically-coupled
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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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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
Abstract
The invention discloses a magnetic controllable reactor with an anti-interference function. The magnetic controllable reactor comprises a power supply module which is connected with an electric supply and is used for receiving electric energy from a power grid, an energy taking module which comprises a first voltage stabilizing tube for converting direct current voltage from the power supply into 12V voltage and a second voltage stabilizing tube, a photoelectric interface module which comprises a light receiving circuit unit and a light emitting circuit unit, and a triggering feedback module for acquiring voltage at two ends of a transistor and voltage of a gate pole so as to generate a voltage state feedback signal, wherein a protection triggering module is positioned between the triggering feedback module and the transistor and is used for adjusting a working state of the transistor according to the voltage state feedback signal from the triggering feedback module; a second capacitor is bridged between the first output end and the ground. The magnetic controllable reactor can take stable working power with low corrugation at a time from equipment; in a more severe electromagnetic environment, strong electromagnetic interference caused by high current in a main circuit and switching-on and switching-off of the transistor on the circuit is avoided; the magnetic controllable reactor has certain anti-interference performance.
Description
Technical field
The present invention relates to a kind of magnet controlled reactor with anti-interference function, belong to reactor technical field.
Background technology
Reactor is also inductor, the certain space scope occupied by it will produce magnetic field during a conductor energising, so the electric conductor of all energy current-carrying has perception in general sense.But the inductance of the long straight conductor that is energized is less, the magnetic field produced is not strong, and therefore actual reactor is that wire is coiled into solenoid form, claims air core reactor; Sometimes in order to allow this solenoid have larger inductance, just inserting unshakable in one's determination in solenoid, claiming iron-core reactor.
In electric power system, introduce reactive power compensator carry out reactive power compensation, magnet controlled reactor (MCR) is always conventional, and it has played important effect in dynamic reactive support, improvement electrical network three-phase imbalance.Compare with active equipment, it has huge advantage in stability and compensation capacity.Wherein, the reliable triggering of thyristor is one of key technology of whole device.IGBT group mode conventional at present has electromagnetism triggering mode, photoelectricity triggering mode and light triggering mode.Traditional electromagnetism triggering mode cannot monitor the trigger state of thyristor in real time, cannot accurately grasp in real time the triggering situation of reality, is not easy to realize the accuracy of triggering and the protection to thyristor.
Summary of the invention
The object of this invention is to provide a kind of magnet controlled reactor with anti-interference function, this magnet controlled reactor can obtain stable, that ripple is little working power from equipment primary side, in more severe electromagnetic environment, overcome the big current in main circuit, thyristor cut-off the strong electromagnetic that circuit is caused, there is certain interference free performance.
For achieving the above object, the technical solution used in the present invention is: a kind of magnet controlled reactor with anti-interference function, and described magnet controlled reactor comprises reactor and the thyristor for controlling reactor switching angle;
Also comprise: the power module connecting civil power, for receiving the electric energy from electrical network, it comprises transformer and the 1st diode, and described transformer obtains direct voltage by from removing positive half cycle through described 1st diode again after the voltage step-down of civil power;
Get energy module, described the first voltage-stabiliser tube, the second voltage-stabiliser tube got energy module and comprise series connection, direct voltage from described power module is converted into 12V voltage by this first voltage-stabiliser tube, 12V photovoltaic conversion from the first voltage-stabiliser tube is 5V voltage by described second voltage-stabiliser tube, the contact of described first voltage-stabiliser tube and the second voltage-stabiliser tube as the first output for powering to the 1st triode and the 2nd diode, the second voltage-stabiliser tube away from one end of the first voltage-stabiliser tube as the second output for giving the 3rd triode and optic electric interface module for power supply;
Optic electric interface module, it comprises optical receiving circuit unit and optical transmission circuit unit, and optical receiving circuit unit is used for the light pulse signal fetching self-controller to be converted into synchronizing current signal; Optical transmission circuit unit is used for the voltage status feedback signal from trigger feedback module being converted into optical signal transmission to described controller;
Be connected to the controller of optic electric interface module, for adjusting described reactor switching angle according to amount idle in electrical network;
Be connected to the trigger module of described gate circuit transistor gate, synchronizing current signal is amplified the current impulse being converted to and driving gate circuit transistor gate, it comprise series connection by the 2nd triode, 3rd triode composition preamplifying circuit and by the 1st triode, the rear class amplifying circuit of the 2nd diode and the 3rd Diode series composition, described 2nd triode, the second output of energy module is got described in 3rd triode base stage is separately connected to through the 4th resistance and the 3rd resistance respectively, the tie point of described 2nd diode cathode and the 3rd diode cathode is connected to described gate circuit transistor gate, the 2nd triode is driven successively after driving its conducting from the synchronizing current signal of optic electric interface module by the 3rd transistor base, 1st triode ON, thus enter thyristor gate leve by the tie point output of the 2nd diode and the 3rd diode for the synchronous triggering signal controlling reactor switching angle,
Trigger feedback module, for gathering the voltage at described thyristor two ends and gate voltage thus formation voltage status feedback signal, one protection trigger module, between described trigger feedback module and thyristor, adjusts described thuristor working state according to from trigger feedback module voltage status feedback signal;
Between described first output and ground connection, cross-over connection has the 2nd electric capacity, and between the second output and ground connection, cross-over connection has the 3rd electric capacity; One branch road of being connected by the 1st resistance and the 1st light-emitting diode and described 2nd Capacitance parallel connection, the branch road of being connected by the 2nd resistance and the 2nd light-emitting diode and described 3rd Capacitance parallel connection.
In technique scheme, further improvement project is as follows:
In such scheme, one the 1st electric capacity and described transformers connected in parallel, for filtering AC influence.
Because technique scheme is used, the present invention compared with prior art has following advantages and effect:
The present invention has the magnet controlled reactor of anti-interference function, it is compared by the voltage and gate voltage gathering thyristor two ends, if thyristor both end voltage is greater than its rated voltage, and judge the non-conducting of thyristor by gate voltage, now, protection circuits for triggering will produce triggering signal, force turn on thyristors to protect thyristor, prevent it by over-voltage breakdown; Secondly, it is positioned at electrical network hot side, and gate circuit transistor gate and optic electric interface module are provided with trigger module, uses the transmission of optical fiber settling signal and the isolation of high electronegative potential, pulse quality or isolation performance are all better than the equipment of electromagnetism triggering mode; Again, circuit design of the present invention can obtain stable, that ripple is little working power from equipment primary side, in more severe electromagnetic environment, overcome the big current in main circuit, thyristor 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 of being connected by the 1st resistance and the 1st light-emitting diode and described 2nd Capacitance parallel connection, the branch road of being connected by the 2nd resistance and the 2nd light-emitting diode and described 3rd Capacitance parallel connection, be connected to the tie point of the 2nd diode and the 3rd diode after being used to indicate the 3rd light-emitting diode of trigger state and the 7th resistant series; Realize the triggering of thyristor module, ensure that triggering accurately, in time and synchronously.
Accompanying drawing explanation
Accompanying drawing 1 is implement the magnet controlled reactor structure principle chart that the present invention has anti-interference function;
Accompanying drawing 2 is for implementing power module circuitry figure of the present invention;
Accompanying drawing 3 gets energy module circuit diagram for implementing the present invention;
Accompanying drawing 4 is for implementing trigger module circuit diagram of the present invention.
In above accompanying drawing: 1, reactor; 2, thyristor; 3, power module; 4, energy module is got; 5, optic electric interface module; 51, optical receiving circuit unit; 52, optical transmission circuit unit; 6, controller; 7, trigger module; 8, trigger feedback module; 9, trigger module is protected.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described:
Embodiment: a kind of magnet controlled reactor with anti-interference function, as shown in accompanying drawing 1 ~ 4, described magnet controlled reactor comprises reactor 1 and the thyristor 2 for controlling reactor 1 switching angle;
Also comprise: the power module 3 connecting civil power, for receiving the electric energy from electrical network, it comprises transformer T1 and the 1st diode D1, and described transformer T1 obtains direct voltage by from removing positive half cycle through described 1st diode D1 again after the voltage step-down of civil power;
Get energy module 4, described the first voltage-stabiliser tube U1 getting energy module 4 and comprise series connection, second voltage-stabiliser tube U2, direct voltage from described power module 3 is converted into 12V voltage by this first voltage-stabiliser tube U1, 12V photovoltaic conversion from the first voltage-stabiliser tube U1 is 5V voltage by described second voltage-stabiliser tube U2, the contact of described first voltage-stabiliser tube U1 and the second voltage-stabiliser tube U2 is as giving the 1st triode Q1, the first output that 2nd diode D2 powers, second voltage-stabiliser tube U2 away from the first voltage-stabiliser tube U1 one end as give the 3rd triode Q3, second output of optic electric interface module for power supply,
Optic electric interface module 5, it comprises 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 the light pulse signal fetching self-controller 6; Optical transmission circuit unit 52 is for being converted into optical signal transmission to described controller 6 by the voltage status feedback signal from trigger feedback module;
Be connected to the controller 6 of optic electric interface module 5, for adjusting described reactor 1 switching angle according to amount idle in electrical network;
Be connected to the trigger module 7 of described thyristor 2 gate pole, synchronizing current signal is amplified the current impulse being converted to and driving thyristor 2 gate pole, it comprise series connection by the 2nd triode Q2, 3rd triode Q3 form preamplifying circuit and by the 1st triode Q1, the rear class amplifying circuit that 2nd diode D2 and the 3rd diode D3 is composed in series, described 2nd triode Q2, the second output of energy module 4 is got described in 3rd triode Q3 base stage is separately connected to through the 4th resistance R4 and the 3rd resistance R3 respectively, thyristor 2 gate pole is stated described in the tie point of described 2nd diode D2 negative pole and the 3rd diode D3 negative pole is connected to, from the synchronizing current signal of optic electric interface module 5 by driving the 2nd triode Q2 successively after the 3rd its conducting of triode Q3 base drive, 1st triode Q1 conducting, thus enter thyristor 2 gate leve by the tie 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, for gathering the voltage at described thyristor 2 two ends and gate voltage thus formation voltage status feedback signal.
One protection trigger module 9, between described trigger feedback module 8 and thyristor 2, adjusts described thyristor 2 operating state according to from trigger feedback module 8 voltage status feedback signal;
One the 1st electric capacity C1 is in parallel with described transformer T1, for filtering AC influence.
Between above-mentioned first output and ground connection, cross-over connection has the 2nd electric capacity C2, and between the second output and ground connection, cross-over connection has the 3rd electric capacity C3.
One branch road of being connected by the 1st resistance and the 1st LED 1 is in parallel with described 2nd electric capacity C2, and the branch road of being connected by the 2nd resistance and the 2nd LED 2 is in parallel with described 3rd electric capacity C3.
One the 3rd LED 3 being used to indicate trigger state is connected to the tie point of the 2nd diode D2 and the 3rd diode D3 after connecting with the 7th resistance R7.
The present embodiment reactive compensator of electrical network course of work is as follows.
Adopt the advanced photoelectricity triggering mode monitored.Adopt photoelectricity trigger and thyristor 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 contains following technological difficulties: 1. thyristor trigger board needs to obtain working power from equipment primary side for realizing effectively isolation; 2. the present embodiment can monitor the trigger state of MCR valve group thyristor in real time, and feeds back to Ore-controlling Role, realizes the triggering of precise and safety more; 3. protection circuits for triggering can when the non-conducting state of thyristor bears overvoltage, and its conducting of forced-triggered is to protect thyristor.
The trigger board monitored of described applicable magnet controlled reactor (MCR) type reactive-load compensator comprises gets energy module, optical-electric module, trigger module, trigger feedback circuit and trigger protection circuit.
1. the trigger board monitored of the present embodiment magnet controlled reactor MCR is in operation, and gets and module can obtain working power needed for system works from hot side;
2. receive the light signal from control system optical-fibre channel by the receiving unit of optical-electric module, and be translated into the signal of telecommunication and enter in trigger module; Simultaneously the signal sent here of trigger feedback circuit, through the light radiating portion of optical-electric module, is translated into light signal and sends control system back to, realize the monitoring to IGBT group state;
3. by the circuit in subsequent triggers module, weak pulse signal is amplified the current impulse being converted to and meeting and trigger and require, output to the gate leve of thyristor to trigger thyristor controlled series compensation;
4. protect circuits for triggering to be compared by the voltage and gate voltage gathering thyristor two ends, if thyristor both end voltage is greater than its rated voltage, and judge the non-conducting of thyristor by gate voltage, now, protection circuits for triggering will produce triggering signal, force turn on thyristors to protect thyristor, prevent it by over-voltage breakdown;
Owing to have employed above technical scheme, the beneficial effect of the present embodiment is: the operating current of (1) circuit board own is little, low in energy consumption, on main circuit work substantially without impact; (2) can thyristor be protected owing to have employed protection circuits for triggering, prevent it by over-voltage breakdown; (3) synchronism of triggering signal, accuracy and promptness is achieved owing to have employed photoelectricity triggering mode; (4) owing to have employed trigger feedback circuit, IGBT group state can be returned control system, conveniently monitor in real time and protect; (5) cost is low, and hardware circuit is simple, is easy to realize.
Above-described embodiment, only for technical conceive of the present invention and feature are described, its object is to person skilled in the art can be understood content of the present invention and implement according to this, can not limit the scope of the invention with this.All equivalences done according to Spirit Essence of the present invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (2)
1. have a magnet controlled reactor for anti-interference function, described magnet controlled reactor comprises reactor (1) and the thyristor (2) for controlling reactor (1) switching angle, it is characterized in that:
Also comprise: the power module (3) connecting civil power, for receiving the electric energy from electrical network, it comprises transformer and the 1st diode, and described transformer obtains direct voltage by from removing positive half cycle through described 1st diode again after the voltage step-down of civil power;
Get energy module (4), described the first voltage-stabiliser tube, the second voltage-stabiliser tube got energy module (4) and comprise series connection, direct voltage from described power module (3) is converted into 12V voltage by this first voltage-stabiliser tube, 12V photovoltaic conversion from the first voltage-stabiliser tube is 5V voltage by described second voltage-stabiliser tube, the contact of described first voltage-stabiliser tube and the second voltage-stabiliser tube as the first output for powering to the 1st triode and the 2nd diode, the second voltage-stabiliser tube away from one end of the first voltage-stabiliser tube as the second output for giving the 3rd triode and optic electric interface module for power supply;
Optic electric interface module (5), it comprises 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 the light pulse signal fetching self-controller (6); Optical transmission circuit unit (52) is for being converted into optical signal transmission to described controller (6) by the voltage status feedback signal from trigger feedback module;
Be connected to the controller (6) of optic electric interface module (5), for adjusting described reactor (1) switching angle according to amount idle in electrical network;
Be connected to the trigger module (7) of described thyristor (2) gate pole, synchronizing current signal is amplified the current impulse being converted to and driving thyristor (2) gate pole, it comprise series connection by the 2nd triode, 3rd triode composition preamplifying circuit and by the 1st triode, the rear class amplifying circuit of the 2nd diode and the 3rd Diode series composition, described 2nd triode, the second output of energy module (4) is got described in 3rd triode base stage is separately connected to through the 4th resistance and the 3rd resistance respectively, the tie point of described 2nd diode cathode and the 3rd diode cathode is connected to described thyristor (2) gate pole, the 2nd triode is driven successively after driving its conducting from the synchronizing current signal of optic electric interface module (5) by the 3rd transistor base, 1st triode ON, thus enter thyristor (2) gate leve by the tie point output of the 2nd diode and the 3rd diode for the synchronous triggering signal controlling reactor (1) switching angle,
Trigger feedback module (8), for gathering the voltage at described thyristor (2) two ends and gate voltage thus formation voltage status feedback signal; One protection trigger module (9) is positioned between described trigger feedback module (8) and thyristor (2), adjusts described thyristor (2) operating state according to from trigger feedback module (8) voltage status feedback signal;
Between described first output and ground connection, cross-over connection has the 2nd electric capacity, and between the second output and ground connection, cross-over connection has the 3rd electric capacity; One branch road of being connected by the 1st resistance and the 1st light-emitting diode and described 2nd Capacitance parallel connection, the branch road of being connected by the 2nd resistance and the 2nd light-emitting diode and described 3rd Capacitance parallel connection.
2. the magnet controlled reactor with anti-interference function according to claim 1, is characterized in that: one the 1st electric capacity and described transformers connected in parallel, for filtering AC influence.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410578079.6A CN104269865B (en) | 2013-01-23 | 2013-01-23 | There is the magnet controlled reactor of anti-interference function |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410578079.6A CN104269865B (en) | 2013-01-23 | 2013-01-23 | There is the magnet controlled reactor of anti-interference function |
| CN201310025325.0A CN103138274B (en) | 2013-01-23 | 2013-01-23 | Monitorable magnetically-controlled reactor |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310025325.0A Division CN103138274B (en) | 2013-01-23 | 2013-01-23 | Monitorable magnetically-controlled reactor |
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| Publication Number | Publication Date |
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| CN104269865A true CN104269865A (en) | 2015-01-07 |
| CN104269865B CN104269865B (en) | 2016-08-31 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107634688A (en) * | 2017-09-22 | 2018-01-26 | 杭州银湖电气设备有限公司 | Magnet controlled reactor pulse control unit and method |
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| CN201282340Y (en) * | 2008-10-07 | 2009-07-29 | 王运虎 | Magnetic valve type controllable inductor type SVC dynamic reactive compensator |
| 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) |
| CN203103973U (en) * | 2013-01-23 | 2013-07-31 | 苏州工业园区和顺电气股份有限公司 | Monitorable magnetically controlled reactor |
| CN104319789A (en) * | 2013-01-23 | 2015-01-28 | 苏州工业园区和顺电气股份有限公司 | Electric reactor for electric power |
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Patent Citations (4)
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| CN201282340Y (en) * | 2008-10-07 | 2009-07-29 | 王运虎 | Magnetic valve type controllable inductor type SVC dynamic reactive compensator |
| 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) |
| CN203103973U (en) * | 2013-01-23 | 2013-07-31 | 苏州工业园区和顺电气股份有限公司 | Monitorable magnetically controlled reactor |
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| CN107634688A (en) * | 2017-09-22 | 2018-01-26 | 杭州银湖电气设备有限公司 | Magnet controlled reactor pulse control unit and method |
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| CN104269865B (en) | 2016-08-31 |
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