CN204287852U - A kind of noble potential self-powered IGBT group system - Google Patents
A kind of noble potential self-powered IGBT group system Download PDFInfo
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- CN204287852U CN204287852U CN201420780753.4U CN201420780753U CN204287852U CN 204287852 U CN204287852 U CN 204287852U CN 201420780753 U CN201420780753 U CN 201420780753U CN 204287852 U CN204287852 U CN 204287852U
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Abstract
The utility model discloses a kind of noble potential self-powered IGBT group system, described triggering system comprises thyristor electronic board by Fiber connection and valve base electronic device, described valve base electronic device receives the order that master control system sends, thyristor is triggered by thyristor electronic board, and produce return signal, the state of thyristor is sent to master control system in real time by valve base electronic device.Noble potential self-powered IGBT group system provided by the utility model, receiving system is set out command triggers thyristor, and produce return signal, the state of thyristor is sent to control system in real time, it can mode be that energy is sent in coupling that power supply is got, logical circuit is take CPLD as the Programmable Logic Device of core, photoelectric direct contact is adopted to send out Optical Fiber Transmission, a trigger command can be realized trigger the thyristor groups of two inverse parallel common cathodes and have loop signal to feed back, be applicable in totally digitilized static reactive equipment, be widely used in D.C. high voltage transmission and flexible AC transmitting system.
Description
Technical field
The utility model relates to network reactive-load compensation equipment, particularly a kind of noble potential self-powered IGBT group system.
Background technology
Along with growing to reactive-load compensation equipment demand of electrical network, based on thyristor-controlled reactor (TCR) static passive compensation device due to the combination property in installation cost, running wastage and reliability, response speed and control ability etc. better, obtain increasing application.Wherein the triggering of thyristor is realized by high-potential electronic plate (Thyristor Electronics is called for short TE plate) with running detection.Usually and thyristor one_to_one corresponding, thyristor adopts netted series connection to TE plate now mostly in application, then TE plate quantity is a lot.Logical circuit is made up of general-purpose chip, is not easy to later development.
Summary of the invention
The utility model object is: provide a kind of noble potential self-powered IGBT group system.
The technical solution of the utility model is:
A kind of noble potential self-powered IGBT group system, described triggering system comprises thyristor electronic board by Fiber connection and valve base electronic device, described valve base electronic device receives the order that master control system sends, thyristor is triggered by thyristor electronic board, and produce return signal, the state of thyristor is sent to master control system in real time by valve base electronic device.
Concrete, described thyristor electronic board comprises CPLD, described CPLD carries out Signal reception and transmission respectively by optical receiving set and optical generator connecting fiber and valve base electronic device, connect gate circuit transistor gate by gate pole amplifying return circuit, detect thuristor working state by voltage detection circuit and du/dt measure loop; Described thyristor electronic board also comprises and gets energy and Power convert loop, provide power supply to maintain the triggering of thyristor and the controlling functions of thyristor electronic board.
Preferably, described thyristor electronic board also comprises the urgent triggering loop be simultaneously connected with CPLD and optical generator, described urgent triggering loop exports and is connected to gate circuit transistor gate.
Preferably, described master control system and valve base electronic device are integrated on same circuit board.
Preferably, described thyristor comprises many groups, and often group comprises the thyristor of two reverse parallel connections, often organizes thyristor net formula and connects to form thyristor controlled series compensation.
Preferably, described get can and Power convert loop comprise the voltage couples is connected with thyristor respectively and get and loop and current coupling can get energy loop, described voltage couples gets energy loop and current coupling is got and can be connected to charge circuit in loop, and described charge circuit controls selection by amplitude limiter circuit and gets energy mode.
Preferred further, described CPLD is also connected with power monitoring and reset circuit.
The utility model has the advantages that:
Noble potential self-powered IGBT group system provided by the utility model, receiving system is set out command triggers thyristor, and produce return signal, the state of thyristor is sent to control system in real time, it can mode be that energy is sent in coupling that power supply is got, logical circuit is take CPLD as the Programmable Logic Device of core, photoelectric direct contact is adopted to send out Optical Fiber Transmission, a trigger command can be realized trigger the thyristor groups of two inverse parallel common cathodes and have loop signal to feed back, be applicable in totally digitilized static reactive equipment, be widely used in D.C. high voltage transmission and flexible AC transmitting system.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further described:
Fig. 1 is the schematic diagram of noble potential self-powered IGBT group system described in the utility model;
Fig. 2 is the schematic diagram of thyristor electronic board described in the utility model;
Fig. 3 is the schematic diagram getting energy and Power convert loop described in the utility model.
Embodiment
Thyristor controlled series compensation is the control core part of the idle change of TCR, and thyristor controlled series compensation adopts some structures of connecting to antiparallel Thyristor, and the thyristor controlled series compensation after series winding can bear the overvoltage value of system voltage more than 4 times; In every phase valve group, the quantity of Thyristor possesses enough redundances, when every mutually in indivedual thyristor damage time, equipment still can normally run.Thyristor controlled series compensation adopts phase place firing control, and IGBT group angle is adjustable between 106 °-165 °.Noble potential self-powered thyristor trigger board, as triggering thyristor controlled series compensation and detecting the control electron plate returning signal, plays an important role to whole thyristor controlled series compensation.
As shown in Figure 1, the noble potential self-powered IGBT group system that the utility model discloses, two thyristor reverse parallel connections the netted composition thyristor controlled series compensation that is together in series.Noble potential self-powered IGBT group system is made up of thyristor electronic board TE, valve base electronic device VBE and light signal transmission system.Thyristor electronic board is installed near thyristor, provides suitable trigger current to thyristor, and detects the status information of thyristor.Be positioned on high-tension side thyristor electronic board (TE) and be positioned at low-pressure side valve base electronic device (VBE) between adopt Fiber connection, the master control system of device and valve base electronic device are integrated on same circuit board.
The triggering command of valve base electronic device (VBE) receiving trap master control system, the pulse code signal controlling thyristor electronic board (TE) sequential is converted thereof in triggering system, this pulse code signal delivers to TE plate by optical fiber after electro-optic conversion, TE plate receives triggering light signal, decode after opto-electronic conversion, complete the triggering of thyristor, simultaneously TE plate by the testing result signal response of thyristor state to valve base electronic device (VBE), after master control system will return signal opto-electronic conversion, according to corresponding thyristor working stage, by analysis, process show that the work state information of thyristor is sent to master control system, and send abort light for the trigger pulse of urgent locking thyristor valve or directly trip to master control system where necessary.
Fig. 2 is the schematic diagram of thyristor electronic board of the present utility model.Described thyristor electronic board comprises CPLD, described CPLD carries out Signal reception and transmission respectively by optical receiving set and optical generator connecting fiber and valve base electronic device, connect gate circuit transistor gate by gate pole amplifying return circuit, detect thuristor working state by voltage detection circuit and du/dt measure loop; Described thyristor electronic board also comprises and gets energy and Power convert loop, provide power supply to maintain the triggering of thyristor and the controlling functions of thyristor electronic board.Described thyristor electronic board also comprises the urgent triggering loop be simultaneously connected with CPLD and optical generator, described urgent triggering loop exports and is connected to gate circuit transistor gate.
Wherein programmable logic device (PLD) centered by CPLD chip, controls whole electron plate.Get and power supply can be provided to maintain the triggering of thyristor and the controlling functions of electron plate with power transfer module.Voltage detection circuit, to the monitoring state of thyristor controlled series compensation, realizes signal real-time repaying.And optical receiving set and optical generator and Fiber connection, realize reception and the return of signal.
It can mode be coupling energy taking that the power supply of the utility model noble potential self-powered thyristor trigger board is got, and gets the schematic diagram in energy and Power convert loop as shown in Figure 3.More high-pressure thyristor valve group is formed by connecting by the thyristor net formula organizing two reverse parallel connections, and often group crystalline substance explains Guan Jun turn-on and turn-off two states, carries out voltage couples get energy when ending by electric capacity; Carry out current coupling by inductance during conducting and get energy, ensure that crystalline substance explains the triggering of pipe.In figure, C2 is the charging capacitor of coupling energy taking, and VS is voltage stabilizing diode, forms amplitude limiter circuit with electric capacity C1, resistance R1 and resistance R2 and triode V.Tc is current transformer, completes current coupling and gets energy.When crystalline substance make a noise pipe VT be in forward voltage drop time, Rb, Cb in transient state equalizer circuit charges to by the electric capacity C2 in diode VD figure, until voltage stabilizing diode VS punctures, cause transistor V conducting simultaneously, by live part short circuit, charging end.The trigger process of brilliant noisy pipe only needs tens microseconds, and the electricity that therefore C2 stores is enough to trigger VT.When crystalline substance make a noise pipe VT be in conducting phase time, current transformer TC generation current, to C2 charging, obtains required electric energy.
Gate pole amplifying return circuit Received signal strength triggers thyristor, optical receiving set receives the pumped FIR laser signal that valve base electronic device VBE sends, after opto-electronic conversion and decoding circuit decoding, remove the work schedule triggering thyristor and control TE plate, complete the Trigger Function of thyristor, meanwhile, open the stage at thyristor, when the improper zero passage of thyristor current flows, complete the heavy Trigger Function of thyristor.
Voltage detecting circuit and du/dt testing circuit are in order to detect thuristor working state; thyristor is not in the course of the work for a certain reason by triggered as normal; thus forward superpotential will be born; forward overvoltage protecting device (or circuit) action before superpotential rising reaches thyristor break over voltage; force triggering thyristor, reach the object of protection thyristor.Meanwhile, standby can be produced and trigger circuit behavior return signal, and by return signal circuit, this actuating signal be delivered to valve base electronic device (VBE).
Thyristor is between the convalescence being conducting to cut-off; because blocking characteristics recovers not yet completely; too high du/dt disturbance can damage thyristor; when the voltage build-up rate du/dt at thyristor two ends is greater than setting value; and magnitude of voltage also higher than setting value time; du/dt actuating signal can be produced, and by return signal circuit, this signal is delivered to valve base electronic device (VBE), protection thyristor.
The major function of urgent triggering loop BOD blocks the thyristor forward superpotential caused by any reason, and when thyristor electronic board (TE) triggered as normal pulse passage breaks down, protect triggering in support.
The major function of optical receiver and optical generator is that the baseband signal realized between valve base electronic device (VBE) and thyristor electronic board (TE) by optical fiber is transmitted.
Above-described embodiment, only for technical conceive of the present utility model and feature are described, its object is to person skilled in the art can be understood content of the present utility model and implement according to this, can not limit protection domain of the present utility model with this.All modifications done according to the Spirit Essence of the utility model main technical schemes, all should be encompassed within protection domain of the present utility model.
Claims (7)
1. a noble potential self-powered IGBT group system, it is characterized in that: described triggering system comprises thyristor electronic board by Fiber connection and valve base electronic device, described valve base electronic device receives the order that master control system sends, thyristor is triggered by thyristor electronic board, and produce return signal, the state of thyristor is sent to master control system in real time by valve base electronic device.
2. noble potential self-powered IGBT group system according to claim 1, it is characterized in that: described thyristor electronic board comprises CPLD, described CPLD carries out Signal reception and transmission respectively by optical receiving set and optical generator connecting fiber and valve base electronic device, connect gate circuit transistor gate by gate pole amplifying return circuit, detect thuristor working state by voltage detection circuit and du/dt measure loop; Described thyristor electronic board also comprises and gets energy and Power convert loop, provide power supply to maintain the triggering of thyristor and the controlling functions of thyristor electronic board.
3. noble potential self-powered IGBT group system according to claim 2, it is characterized in that: described thyristor electronic board also comprises the urgent triggering loop be simultaneously connected with CPLD and optical generator, described urgent triggering loop exports and is connected to gate circuit transistor gate.
4. noble potential self-powered IGBT group system according to claim 1, is characterized in that: described master control system and valve base electronic device are integrated on same circuit board.
5. the noble potential self-powered IGBT group system according to Claims 2 or 3, it is characterized in that: described thyristor comprises many groups, often group comprises the thyristor of two reverse parallel connections, often organizes thyristor net formula and connects to form thyristor controlled series compensation.
6. noble potential self-powered IGBT group system according to claim 5, it is characterized in that: described in get can and Power convert loop comprise the voltage couples is connected with thyristor respectively and get and loop and current coupling can get energy loop, described voltage couples gets energy loop and current coupling is got and can be connected to charge circuit in loop, and described charge circuit controls selection by amplitude limiter circuit and gets energy mode.
7. noble potential self-powered IGBT group system according to claim 2, is characterized in that: described CPLD is also connected with power monitoring and reset circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420780753.4U CN204287852U (en) | 2014-12-12 | 2014-12-12 | A kind of noble potential self-powered IGBT group system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420780753.4U CN204287852U (en) | 2014-12-12 | 2014-12-12 | A kind of noble potential self-powered IGBT group system |
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| CN204287852U true CN204287852U (en) | 2015-04-22 |
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| CN201420780753.4U Expired - Fee Related CN204287852U (en) | 2014-12-12 | 2014-12-12 | A kind of noble potential self-powered IGBT group system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108718077A (en) * | 2018-05-25 | 2018-10-30 | 湖南省湘电试验研究院有限公司 | A kind of high-pressure thyristor triggering control and state monitoring apparatus and its application process |
| WO2019011080A1 (en) * | 2017-07-10 | 2019-01-17 | 南京南瑞继保电气有限公司 | Transparent forwarding-based thyristor valve test system |
| CN112003453A (en) * | 2020-07-15 | 2020-11-27 | 中国南方电网有限责任公司超高压输电公司广州局 | Converter valve triggering framework for realizing charged fault handling |
| CN112180192A (en) * | 2020-09-27 | 2021-01-05 | 云南电网有限责任公司昭通供电局 | Power electronic equipment field test detection method |
| CN112578258A (en) * | 2019-09-27 | 2021-03-30 | 上海宝信软件股份有限公司 | Detection method and system suitable for TE control panel |
-
2014
- 2014-12-12 CN CN201420780753.4U patent/CN204287852U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019011080A1 (en) * | 2017-07-10 | 2019-01-17 | 南京南瑞继保电气有限公司 | Transparent forwarding-based thyristor valve test system |
| CN109239587A (en) * | 2017-07-10 | 2019-01-18 | 南京南瑞继保电气有限公司 | A kind of thyristor valve test macro based on transparent forwarding |
| CN108718077A (en) * | 2018-05-25 | 2018-10-30 | 湖南省湘电试验研究院有限公司 | A kind of high-pressure thyristor triggering control and state monitoring apparatus and its application process |
| CN112578258A (en) * | 2019-09-27 | 2021-03-30 | 上海宝信软件股份有限公司 | Detection method and system suitable for TE control panel |
| CN112003453A (en) * | 2020-07-15 | 2020-11-27 | 中国南方电网有限责任公司超高压输电公司广州局 | Converter valve triggering framework for realizing charged fault handling |
| CN112003453B (en) * | 2020-07-15 | 2021-07-27 | 中国南方电网有限责任公司超高压输电公司广州局 | Converter valve triggering framework for realizing charged fault handling |
| CN112180192A (en) * | 2020-09-27 | 2021-01-05 | 云南电网有限责任公司昭通供电局 | Power electronic equipment field test detection method |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150422 Termination date: 20181212 |
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| CF01 | Termination of patent right due to non-payment of annual fee |