CN100353639C - Photoelectricity triggering and detecting system for static reactive-load compensation equipment based on multi-mode optical fibre - Google Patents
Photoelectricity triggering and detecting system for static reactive-load compensation equipment based on multi-mode optical fibre Download PDFInfo
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Abstract
The present invention relates to a photoelectric triggering and detection system based on multimode optical fibers, which comprises a photoelectric triggering unit and a photoelectric detection unit, wherein the photoelectric triggering unit comprises a triggering logic module, an AB phase, a BC phase and a CA phase photic drive modules and optical fibers; the photoelectric detection unit comprises six valve detection modules, an AB+, an AB-, a BC+, a BC-, a CA+, a CA-optical receiving modules and optical fibers. The photoelectric triggering unit and the photoelectric detection unit have the functions that a thyristor is triggered by autocoding optical pulses, the operating mode of the intelligent detection of the thyristor is responded by the optical pulses, pulse-loss detection and PT breakage detection are triggered by electricity, the photoelectric triggering unit and the photoelectric detection unit can be serially communicated with master-slave type distribution of upper computers, etc. The system has the advantages of reliable and stable triggering, fast detection of the operating mode of the thyristor, strong interference resistance performance and reliable communication; effective triggering and quick detection for thyristor valve groups can be realized well.
Description
Technical field
The present invention relates to Static Var Compensator in electric power system and the power electronic technology (SVC), particularly a kind of Static Var Compensator based on multimode fiber triggers and detection system the valve base electronic device that is otherwise known as (VBE-Valve BaseEquipment) with photoelectricity.
Background technology
Static Var Compensator based on multimode fiber is the important component part of SVC with the photoelectricity triggering with detection system, and valve base electronic device VBE is otherwise known as.It is the device that triggers thyristor valve group conducting and detect thyristor valve group running status, not only can be applied to Static Var Compensator (SVC), can also be widely used in having in the power electronic equipment of thyristor valve group as high voltage direct current transmission (HVDC) etc.The thyristor valve group of Static Var Compensator is in when operation, valve base electronic device VBE control system to its trigger, state-detection, and thyristor valve protected.The thyristor valve group is in high potential state, and valve base electronic device VBE is in low-potential state, normally earth potential.Valve base electronic device VBE sends the coding triggering light by multimode fiber, and accepts coded light pulses repayment signal, finishes and triggers and testing.
Mainly there are following technological difficulties in this technical research: 1) because triggering all adopts multimode fiber to be connected with the thyristor valve group of high potential with detection, the photoelectricity of paired pulses and electric light are changed, the triggering of all thyristors and the identification of repaying the signal of telecommunication, become the key and the difficult point of this technology; 2) the thyristor valve group is in series by many groups thyristor, and how by optical fiber whether breakdown the running status of up to a hundred thyristors (comprising thyristor and BOD protection action frequency etc.) being detected respectively becomes a difficult point; 3) to the fast detecting of forward and reverse thyristor valve group branch road of A, B, C phase and the coordination problem of detection system and the distributed communication of host computer; 4) effective control problem of the coding of trigger impulse and thyristor valve group comprises protection problem that trigger impulse is lost etc.These technological difficulties have determined to have very large technical difficulty based on the photoelectricity triggering of multimode fiber and the exploitation of detection system, at present, do not see identical or similar techniques based on the photoelectricity triggering of multimode fiber at home, outward as yet with detection system.
Summary of the invention
The purpose of this invention is to provide a kind of distributed, intelligent Static Var Compensator and trigger and detection system, make the safe and reliable to operation of thyristor valve group with photoelectricity based on multimode fiber.
The present invention solves the technical scheme that its technical problem takes: trigger with detection system based on the photoelectricity of multimode fiber and comprise the photoelectricity trigger element of valve and the photodetector unit of valve.The photoelectricity trigger element of valve triggers the three-phase valve by the triggering optical fiber of thyristor valve, and the photodetector unit of valve detects the running status of thyristor valve by the repayment optical fiber of thyristor valve.
The photoelectricity trigger element is in the frame of broken lines of Fig. 2, comprising: trigger logic module, AB phase, BC phase, CA phase optical drive module and optical fiber.
The photoelectricity trigger element forms three trigger protection windows according to system's three-phase voltage locking phase to AB, BC, CA three-phase trigger pulse.
The photoelectricity trigger element is also accepted 9 voltage synchronous square-wave signals of three-phase and is formed the trigger protection window.
Triggering logic module in the photoelectricity trigger element, will to trigger electric pulse be 4 pulse-triggered logics by the triggering logical transition, and send with the form of light pulse.
The photoelectricity trigger element makes and triggers logic and change locking work over to triggering blocking, the thyristor conducting that will can not be triggered; Trigger logic during separating brake and change the state of quitting work over to, the photoelectricity trigger element does not send any trigger impulse, and the thyristor valve group stops triggering and conducting.
Photoelectricity trigger element thyristor when sending 4 pulse-triggered logics is in conducting state, and thyristor is in the triggering blocking when sending pulse triggering logic.At this two states, photodetector unit all detects thuristor working state by thyristor repayment light pulse, plays the effect of thyristor Pre-testing.Damage if any thyristor, be reported to the SVC monitoring unit.
The photoelectricity trigger element is lost the pulse protection to trigger impulse.The photoelectricity trigger element is lost unidirectional triggering when surpassing 5 cycles detecting trigger impulse, will send to monitoring unit and lose the pulse guard signal.
Photodetector unit is in the frame of broken lines of Fig. 3, comprising: 6 valve Intelligent Measurement modules, AB+, AB-, BC+, BC-, CA+, CA-Optical Receivers and optical fiber.
The work-based logic of high potential plate on photodetector unit and the thyristor valve group (TE plate) is closely related, and TE plate 4 pulse-triggered repayment logic is as follows:
BOD repayment: after dipulse triggers, before 180 ° of voltage over zero.The TE plate will be repaid a 10us light pulse signal after the BOD action.
Thyristor negative pressure repayment: after 180 ° of voltage over zero, before 280 ° of negative pressure are set up and finished.Thyristor closes the formation reverse voltage of having no progeny in conducting, and this voltage is repaid a 10us light pulse signal greater than 80V the time.
The 3rd repayment pulse: send the 10us light pulse of repaying behind the 3rd trigger impulse at the photoelectricity trigger element.
The 4th repayment pulse: send the 10us light pulse of repaying behind the 4th trigger impulse at the photoelectricity trigger element.
Repayment signal after photodetector unit is moved to BOD detects, and thyristor negative pressure repayment signal is detected, and also positive and negative up to a hundred the thyristor valve groups of three-phase is detected in real time, detects the operating state whether it has BOD action and thyristor.
Whether the principle that photodetector unit detects the thyristor valve running status: detecting the TE plate between 180 °～280 ° of voltages has thyristor negative pressure repayment pulse if being.As do not have light pulse feedback, and illustrate that thyristor valve do not set up the reverse voltage more than the 80V, thyristor damages.If any light pulse feedback, illustrate that then thyristor valve set up the above reverse voltage of 80V, thyristor is working properly.Photodetector unit reads the thyristor negative pressure repayment signal of each cycle, to detect the running status of thyristor.
Whether the principle that photodetector unit detects thyristor valve BOD operate condition: detecting the TE plate between 30 °～180 ° of voltages has BOD repayment pulse if being.As do not have the light pulse feedback, illustrate that thyristor valve BOD does not move.If any the light pulse feedback, thyristor valve BOD action then is described once.Photodetector unit reads the thyristor BOD repayment signal of each cycle, to detect the BOD operate condition of thyristor.
Photodetector unit will be by 485 connection real-time report upper level monitoring units for the BOD operate condition, and distributed communication modes is adopted in 485 communications.Photodetector unit also by 485 connection real-time report monitoring units, when surpassing the thyristor valve damage of redundant number, will report the emergency position by the IO mouth for the thyristor running status, make the tripping operation of TCR branch road.
In the photodetector unit three-phase voltage synchronous square-wave signal is detected, lose, will report monitoring unit, realize PT burn out detection function as finding square-wave signal.
Owing to adopted above-mentioned technical scheme, the beneficial effect that the present invention has is: the photoelectricity based on multimode fiber of the present invention triggers with detection system mainly has following function: 1) the autocoding light pulse triggers thyristor; 2) light pulse repayment Intelligent Measurement thyristor running status; 3) electricity triggers and loses pulse detection and PT burn out detection; 4) with the master-slave mode distribution serial communication of host computer.By the combination of these functions, can well realize effective triggering and fast detecting to the thyristor valve group.This system has that reliable trigger is stable, fast detecting thyristor running status, antijamming capability are strong, the advantage of reliable communicating.The present invention has well solved the bottleneck problem that Static Var Compensator is used in electric power system, and can be widely used in having excellent generalization values and application prospect in the power electronic equipment based on the thyristor valve group.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is 4 pulse-triggered phase diagrams of photoelectricity triggering of the present invention and detection system.
Fig. 2 is the photoelectricity trigger element schematic diagram of photoelectricity triggering of the present invention and detection system.
Fig. 3 is the photodetector unit schematic diagram of photoelectricity triggering of the present invention and detection system.
Embodiment
Describe the present invention below in conjunction with accompanying drawing.
Referring to accompanying drawing 2 and Fig. 3, trigger with detection system based on the photoelectricity of multimode fiber and to comprise photoelectricity trigger element and photodetector unit.The photoelectricity trigger element comprises: trigger logic module, AB phase, BC phase, CA phase optical drive module and triggering optical fiber.
Photodetector unit comprises 6 valve detection modules, AB+, AB-, BC+, BC-, CA+, CA-Optical Receivers and optical fiber.
SVC control system regulon obtains thyristor and triggers phase place by to by the calculating of bucking-out system three-phase voltage, electric current, issues the photoelectricity trigger element with the form of narrow pulse, is divided into AB+, AB-, BC+, BC-, CA+, CA-totally 6 trigger impulses.The forward trigger angle is between 105 °～165 °, and the negative sense trigger angle is between 285 °～345 °.The thyristor trigger angle only is triggered as normal in this scope.
Therefore the photoelectricity trigger element forms three trigger protection windows according to system's three-phase voltage locking phase to AB, BC, CA three-phase trigger pulse, and protection window angle is respectively 100 °～170 ° and 280 °～350 °.The trigger impulse that regulon is sent is as being 4 pulse-triggered logics according to triggering logical transition then in this window, thyristor is finished triggering and conducting, as not in this window, the photoelectricity trigger element then can not form 4 pulse-triggered logics, and thyristor will can not be triggered.The photoelectricity trigger element forms this trigger protection window, can guarantee the operate as normal of thyristor valve group effectively, avoids owing to the fault of regulon or because interference causes false triggering, avoids the thyristor trigger angle to forbid triggering the interior harm to thyristor of window.
Thus; the photoelectricity trigger element is except that accepting 6 trigger impulses of three-phase that regulon sends; also accept 9 voltage synchronous square-wave signals of three-phase; the angle of every phase square wave correspondence is respectively: 0 °～180 °, 100 °～280 ° and-15 °～165 °, and form the trigger protection window of 105 °～165 ° and 290 °～345 ° according to this.
Triggering logic module in the photoelectricity trigger element is 4 pulse-triggered logics with the trigger impulse that regulon sends by triggering logical transition.It is as follows that it triggers logic:
The 1st pulse: regulon sends trigger impulse and converts dipulse to.Regulon triggers pulse behind the single order digital filtering, and it is wide to be converted into 10us, also is the dipulse of 10us at interval.The original position at this pulse sign thyristor triggering and conducting angle.
The 2nd pulse: the voltage over zero pulse that 0 °～180 ° voltage synchronizing signals of sending according to regulon form, width 10us.The centre position at this pulse sign thyristor triggering and conducting angle.
The 3rd pulse: the thyristor negative pressure pulse that 100 °～280 ° voltage synchronizing signals of sending according to regulon form, width 10us.This pulse sign thyristor conducting forms the rearmost position of anti-phase negative pressure by the back.
The 4th pulse: the triggering that 0 °～180 ° voltage synchronizing signals of sending according to regulon form is finished pulse, width 10us.This pulse sign thyristor triggers the rearmost position of finishing.4 pulse-triggered phase places as shown in Figure 1.
The photoelectricity trigger element is accepted triggering block signal and the TCR branch road on/off switch signal that the SVC supervisory control system is sent, and in view of the above the operating state of thyristor valve group is carried out different processing.
Trigger block signal: this signal will make the triggering logic change the locking operating state over to, no matter whether regulon sends triggering signal, photoelectricity triggers logic and all no longer is converted into 4 pulse-triggered logics, but is converted to 280 ° of pulses, the thyristor conducting that will can not be triggered.Any moment of supervisory control system is sent the triggering block signal, does not influence current complete 4 a pulse-triggered logics output.The triggering signal of sending when regulon is not during in the trigger protection window interior, and the photoelectricity trigger element only sends 280 ° of pulses, is equivalent to blocking.
The on/off switch signal: this signal will make the triggering logic change the state of quitting work over to, and the photoelectricity trigger element does not send any trigger impulse, and the thyristor valve group stops triggering and conducting.Any moment of monitoring unit is sent the on/off switch signal, does not influence the complete output of current 4 pulse-triggered logics.
The photoelectricity trigger element has thyristor Pre-testing function: photoelectricity trigger element thyristor when sending 4 pulse-triggered logics is in conducting state, and thyristor is in the triggering blocking when sending pulse triggering logic.No matter be triggering and conducting state or triggering blocking, photodetector system can detect thuristor working state, and the TCR branch road must be through the triggering locking process of certain hour behind combined floodgate, the photoelectricity trigger element sends single pulse signal to thyristor in this process, photodetector unit detects thuristor working state, can play the effect of thyristor Pre-testing.Damage if any thyristor, be reported to the TCR monitoring unit.
The photoelectricity trigger element has to trigger loses the pulse defencive function: 6 trigger impulses of three-phase that the photoelectricity trigger element sends regulon are lost the pulse protection.Just losing wherein or reverse trigger impulse as a certain phase trigger impulse that causes regulon to send for some reason, will cause TCR branch road thyristor folk prescription, producing serious consequence to conducting.So the photoelectricity trigger element is lost unidirectional triggering when surpassing 5 cycles detecting trigger impulse, will send to monitoring unit and lose the pulse guard signal.Photoelectricity trigger element theory diagram as shown in Figure 2.
TE plate 4 pulse-triggered repayment logic
The work-based logic of high potential plate on photodetector unit and the thyristor valve group (TE plate) is closely related, now TE plate 4 pulse-triggered repayment logic is described below:
BOD repayment: after dipulse triggers, before 180 ° of voltage over zero.Because system's temporary overvoltage also may appear near 90 ° of the voltage maximum amplitudes.The TE plate will be repaid a 10us light pulse signal after the BOD action.
Thyristor negative pressure repayment: after 180 ° of voltage over zero, before 280 ° of negative pressure are set up and finished.Thyristor closes the formation reverse voltage of having no progeny in conducting, and this voltage is repaid a 10us light pulse signal greater than 80V the time.
The 3rd repayment pulse: send the 10us light pulse of repaying behind the 3rd trigger impulse at the photoelectricity trigger element.
The 4th repayment pulse: send the 10us light pulse of repaying behind the 4th trigger impulse at the photoelectricity trigger element.
Repayment signal after photodetector unit is moved to BOD detects, and as there not being repayment, thinks that then BOD does not move, and thinks then that if any repayment BOD moves, and writes down the numbering and the action frequency thereof of BOD operating valve.
Photodetector unit detects thyristor negative pressure repayment signal, if any repayment, thinks that then the thyristor state is normal, does not think then that as there being repayment thyristor damages, and reports the thyristor state to monitoring unit.
Photodetector unit can detect in real time to positive and negative up to a hundred the thyristor valve groups of three-phase, detects the operating state whether it has BOD action and thyristor.In addition, photodetector unit also detects the working condition of whole thyristor valve assembly.Comprise that the connection, the TE plate that trigger optical fiber get operating state that can circuit, the connection status of thyristor repayment optical fiber etc.
Photodetector unit will be by 485 connection real-time report monitoring units for the BOD action failure, and distributed communication modes is adopted in 485 communications.Photodetector unit also by 485 connection real-time report monitoring units, when the valve more than 2 is damaged, will report the emergency position by the IO mouth for transistors breakdown, make the tripping operation of TCR branch road.
Because it is to rely on the three-phase voltage synchronous square-wave signal to carry out work that photoelectricity triggers with detecting unit, if after will causing this dropout as the PT broken string for a certain reason, photoelectricity triggers with measuring ability and just can not normally carry out, so in photodetector unit, the three-phase voltage synchronous square-wave signal is detected, as find that square-wave signal loses, will report the static reactive-load compensation equipment monitoring system.
Claims (6)
1, a kind of Static Var Compensator based on multimode fiber triggers and detection system with photoelectricity, it is characterized in that: comprise the photoelectricity trigger element of valve and the photodetector unit of valve; The photoelectricity trigger element of valve triggers the three-phase valve by the triggering optical fiber of thyristor valve, and the photodetector unit of valve detects the running status of thyristor valve by the repayment optical fiber of three-phase thyristor valve;
The photoelectricity trigger element comprises: trigger logic module, AB phase, BC phase, CA phase optical drive module and optical fiber;
The photoelectricity trigger element forms three trigger protection windows according to system's three-phase voltage locking phase to AB, BC, CA three-phase trigger pulse;
The photoelectricity trigger element is also accepted 9 voltage synchronous square-wave signals of three-phase and is formed the trigger protection window;
Triggering logic module in the photoelectricity trigger element, will to trigger electric pulse be 4 pulse-triggered logics by the triggering logical transition, and send with the form of light pulse;
The photoelectricity trigger element makes and triggers logic and change locking work over to triggering blocking, the thyristor conducting that will can not be triggered; Trigger logic during separating brake and change the state of quitting work over to, the photoelectricity trigger element does not send any trigger impulse, and the thyristor valve group stops triggering and conducting;
Photoelectricity trigger element thyristor when sending 4 pulse-triggered logics is in conducting state, and thyristor is in the triggering blocking when sending pulse triggering logic; At this two states, photodetector unit all detects thuristor working state by thyristor repayment light pulse, plays the effect of thyristor Pre-testing; Damage if any thyristor, be reported to the SVC monitoring unit;
The photoelectricity trigger element is lost the pulse protection to trigger impulse; The photoelectricity trigger element will send to monitoring unit and lose the pulse guard signal when detecting trigger impulse and lose the cycle that unidirectional triggering surpasses some;
Photodetector unit comprises: 6 valve Intelligent Measurement modules, AB+, AB-, BC+, BC-, CA+, CA-Optical Receivers and optical fiber;
The work-based logic of TE plate is closely related on photodetector unit and the thyristor valve group, and TE plate 4 pulse-triggered repayment logic is as follows:
BOD repayment: after dipulse triggers, before 180 ° of voltage over zero; The TE plate will be repaid a 10us light pulse signal after the BOD action;
Thyristor negative pressure repayment: after 180 ° of voltage over zero, before 280 ° of negative pressure are set up and finished; Thyristor closes the formation reverse voltage of having no progeny in conducting, and this voltage is repaid a 10us light pulse signal greater than 80V the time;
The 3rd repayment pulse: send the 10us light pulse of repaying behind the 3rd trigger impulse at the photoelectricity trigger element;
The 4th repayment pulse: send the 10us light pulse of repaying behind the 4th trigger impulse at the photoelectricity trigger element;
Repayment signal after photodetector unit is moved to BOD detects, and thyristor negative pressure repayment signal is detected, and also positive and negative up to a hundred the thyristor valve groups of three-phase is detected in real time, detects the operating state whether it has BOD action and thyristor:
Whether photodetector unit detects the TE plate between 180 °～280 ° of voltages have thyristor negative pressure repayment pulse: as do not have the light pulse feedback, illustrate that thyristor valve do not set up the reverse voltage more than the 80V, thyristor damages; If any light pulse feedback, illustrate that then thyristor valve set up the above reverse voltage of 80V, thyristor is working properly; Photodetector unit reads the thyristor negative pressure repayment signal of each cycle, to detect the running status of thyristor;
Whether photodetector unit detects the TE plate between 30 °～180 ° of voltages have BOD repayment pulse: as do not have the light pulse feedback, illustrate that thyristor valve BOD does not move; If any the light pulse feedback, thyristor valve BOD action then is described once; Photodetector unit reads the thyristor BOD repayment signal of each cycle, to detect the BOD operate condition of thyristor;
Photodetector unit will be by 485 connection real-time report monitoring units for the BOD action failure, and distributed communication modes is adopted in 485 communications; Photodetector unit also by 485 connection real-time report monitoring units, when the valve more than 2 is damaged, will report the emergency position by the IO mouth for transistors breakdown, make the tripping operation of TCR branch road;
In the photodetector unit three-phase voltage synchronous square-wave signal is detected, lose, will report monitoring unit, realize PT burn out detection function as finding square-wave signal.
2, a kind of Static Var Compensator based on multimode fiber according to claim 1 triggers and detection system with photoelectricity, it is characterized in that: Static Var Compensator control system regulon is by to by the calculating of bucking-out system three-phase voltage, electric current, obtain thyristor and trigger phase place, issue the photoelectricity trigger element with the form of narrow pulse, be divided into AB+, AB-, BC+, BC-, CA+, CA-totally 6 trigger impulses; The forward trigger angle is between 105 °～165 °, and the negative sense trigger angle is between 285 °～345 °; The thyristor trigger angle only is triggered as normal in this scope.
3, a kind of Static Var Compensator based on multimode fiber according to claim 1 triggers and detection system with photoelectricity; it is characterized in that: the photoelectricity trigger element is according to system's three-phase voltage locking phase; AB, BC, CA three-phase trigger pulse are formed three trigger protection windows, and protection window angle is respectively 100 °～170 ° and 280 °～350 °.
4, a kind of Static Var Compensator based on multimode fiber according to claim 1 triggers and detection system with photoelectricity; it is characterized in that: the photoelectricity trigger element is accepted 9 voltage synchronous square-wave signals of three-phase; the angle of every phase square wave correspondence is respectively: 0 °～180 °, 100 °～280 ° and-15 °～165 °, and form the trigger protection window of 105 °～165 ° and 290 °～345 ° according to this.
5, a kind of Static Var Compensator based on multimode fiber according to claim 1 triggers and detection system with photoelectricity, it is characterized in that: triggering logic module in the photoelectricity trigger element is 4 pulse-triggered logics with the trigger impulse that regulon sends by triggering logical transition, and it is as follows that it triggers logic:
The 1st pulse: regulon sends trigger impulse and converts dipulse to; Regulon triggers pulse behind the single order digital filtering, and it is wide to be converted into 10us, also is the dipulse of 10us at interval; The original position at this pulse sign thyristor triggering and conducting angle;
The 2nd pulse: the voltage over zero pulse that 0 °～180 ° voltage synchronizing signals of sending according to regulon form, width 10us; The centre position at this pulse sign thyristor triggering and conducting angle;
The 3rd pulse: the thyristor negative pressure pulse that 100 °～280 ° voltage synchronizing signals of sending according to regulon form, width 10us; This pulse sign thyristor conducting forms the rearmost position of anti-phase negative pressure by the back;
The 4th pulse: the triggering that 0 °～180 ° voltage synchronizing signals of sending according to regulon form is finished pulse, width 10us; This pulse sign thyristor triggers the rearmost position of finishing.
6, a kind of Static Var Compensator based on multimode fiber according to claim 1 triggers and detection system with photoelectricity; it is characterized in that: the photoelectricity trigger element is lost unidirectional triggering when surpassing 5 cycles detecting trigger impulse, will send to monitoring unit and lose the pulse guard signal.
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| CN101173976B (en) * | 2006-10-31 | 2012-06-27 | 海尔集团公司 | Fault detection method of zero-cross triggering circuit |
| CN102332725B (en) * | 2010-07-12 | 2013-11-27 | 北京博润新能电力科技有限公司 | High potential gate control device for series thyristor valve block in SVC (Static Var Compensator) |
| CN102013677B (en) * | 2010-11-24 | 2014-03-12 | 中国电力科学研究院 | Converter valve base electronic equipment missing pulse protection and control methods and systems |
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| CN108718077B (en) * | 2018-05-25 | 2020-06-05 | 湖南省湘电试验研究院有限公司 | High-voltage thyristor trigger control and state monitoring device and application method thereof |
| CN111208366B (en) * | 2020-01-09 | 2022-03-29 | 南京南瑞继保电气有限公司 | Method for judging electrification of high-voltage valve bank |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5438253A (en) * | 1992-12-07 | 1995-08-01 | Mitsubishi Denki Kabushiki Kaisha | Static var generator using self-commutated inverter |
| US20050194944A1 (en) * | 2004-03-04 | 2005-09-08 | Folts Douglas C. | Dynamic reactive compensation system and method |
-
2005
- 2005-09-13 CN CNB2005101026584A patent/CN100353639C/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5438253A (en) * | 1992-12-07 | 1995-08-01 | Mitsubishi Denki Kabushiki Kaisha | Static var generator using self-commutated inverter |
| US20050194944A1 (en) * | 2004-03-04 | 2005-09-08 | Folts Douglas C. | Dynamic reactive compensation system and method |
Non-Patent Citations (1)
| Title |
|---|
| 高压阀光电触发与在线监测系统的应用研究 任孟干.中国电力科学研究院硕士学位论文 2003 * |
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| CN1767306A (en) | 2006-05-03 |
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