CN106549355A - A kind of high-speed reclosure method with chopper jump identification ability - Google Patents

A kind of high-speed reclosure method with chopper jump identification ability Download PDF

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Publication number
CN106549355A
CN106549355A CN201610980840.8A CN201610980840A CN106549355A CN 106549355 A CN106549355 A CN 106549355A CN 201610980840 A CN201610980840 A CN 201610980840A CN 106549355 A CN106549355 A CN 106549355A
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CN
China
Prior art keywords
speed reclosure
reclosure
flow process
speed
chopper
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201610980840.8A
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Chinese (zh)
Other versions
CN106549355B (en
Inventor
宋国兵
黄兴华
王婷
徐海洋
樊占峰
王玥婷
王邦惠
鲍忠伟
丛志鹏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Corp of China SGCC
Xuji Group Co Ltd
Xian Jiaotong University
Electric Power Research Institute of State Grid Henan Electric Power Co Ltd
Yantai Power Supply Co of State Grid Shandong Electric Power Co Ltd
Economic and Technological Research Institute of State Grid Jibei Electric Power Co Ltd
Original Assignee
State Grid Corp of China SGCC
Xuji Group Co Ltd
Xian Jiaotong University
Electric Power Research Institute of State Grid Henan Electric Power Co Ltd
Yantai Power Supply Co of State Grid Shandong Electric Power Co Ltd
Economic and Technological Research Institute of State Grid Jibei Electric Power Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by State Grid Corp of China SGCC, Xuji Group Co Ltd, Xian Jiaotong University, Electric Power Research Institute of State Grid Henan Electric Power Co Ltd, Yantai Power Supply Co of State Grid Shandong Electric Power Co Ltd, Economic and Technological Research Institute of State Grid Jibei Electric Power Co Ltd filed Critical State Grid Corp of China SGCC
Priority to CN201610980840.8A priority Critical patent/CN106549355B/en
Publication of CN106549355A publication Critical patent/CN106549355A/en
Application granted granted Critical
Publication of CN106549355B publication Critical patent/CN106549355B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/02Details
    • H02H3/06Details with automatic reconnection
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/02Details
    • H02H3/06Details with automatic reconnection
    • H02H3/066Reconnection being a consequence of eliminating the fault which caused disconnection

Abstract

The present invention discloses a kind of high-speed reclosure method with chopper jump identification ability, including:Step one, after circuit breaker trip, detects whether for manual brake separating, if so, to exit high-speed reclosure flow process immediately, otherwise, execution step two;Step 2, detection are configured with whether the relay protection device of auto recloser sends trip signal, if so, exit high-speed reclosure flow process, otherwise execution step three;Step 3, judges whether circuit breaker trip meets fault trip condition, if so, exits high-speed reclosure flow process, otherwise carries out high-speed reclosure.The present invention can recognize chopper jump and take high-speed reclosure to operate which, shorten the reclosure time after chopper jump, improve power system power supply reliability and operation stability.

Description

A kind of high-speed reclosure method with chopper jump identification ability
Technical field
The invention belongs to power system transmission line reclosing field, and in particular to a kind of that there is chopper jump to recognize energy The high-speed reclosure method of power.
Background technology
In order to improve power system power supply reliability and paired running stability, current power transmission circuit is mostly equipped with weight automatically Closing device.Transient fault of the auto recloser mainly for circuit, through fixed time delay after chopper tripping Overlap.Automatic reclosing generally adopts two kinds of start modes:Position does not correspond to start and protect and starts.Position does not correspond to starting and adopts Reclosing is started with controlling switch position and the not corresponding principle of circuit breaker position;Protection is started by detecting line protective devices Trip signal and circuit no current start reclosing.
Circuit breaker trip is divided into fault trip and jump.Fault trip is to trip after chopper receives trip signal, tripping operation Signal includes the trip signal that manual brake separating order and relay protection send.Jump refer to chopper without operation, without after Tripping operation in the case of electric protection action, generally by protective relaying device poor reliability (if exit relay trip contact is in vibration In the case of misconnection lead to) cause it is poor with breaker reliability (as secondary circuit occur 2 points of direct current or multipoint earthing, operating mechanism oneself Row is threaded off, switching winding minimum voltage action is too low, poor anti jamming capability) cause.Chopper jump has a strong impact on power system Power supply reliability and operation stability, should attach the importance.At present, for chopper jump can also be entered using automatic reclosing Row is corrected, and is not corresponded to by position and is started.After chopper jump, tripping position relay action, while controlling switch is being closed a floodgate State afterwards.As the two positions do not correspond to, automatic reclosing can be started, and close after constant time lag chopper.
Chopper jump generally occurs under power system normal operating condition, has essential distinction with line fault.Failure Reclosure time after tripping operation is adjusted to be needed to consider that arc extinction, dielectric insulation intensity are recovered and circuit breaker internal air pressure, oil The recovery of pressure and dielectric strength, it is ensured that for permanent fault chopper can be tripped again.But for chopper jump, do not deposit In trouble point, it is not necessary to consider that arc extinction and dielectric strength recover problem, reclosing operation can be carried out in theory immediately.Cause This, recognizes chopper jump and the operation of reclosing immediately is taken to which, can improve the power supply of power system to greatest extent Reliability and operation stability.
The content of the invention
It is an object of the invention to provide a kind of high-speed reclosure method with chopper jump identification ability, to recognize Chopper jump simultaneously takes the operation of reclosing immediately to which, shortens the reclosure time after chopper jump, to greatest extent Improve the power supply reliability and operation stability of power system.
To reach above-mentioned purpose, the technical solution used in the present invention is:
A kind of high-speed reclosure method with chopper jump identification ability, auto recloser are configured at relay guarantor In shield equipment, the method is comprised the following steps:
Step one, after circuit breaker trip, detects whether for manual brake separating, if so, to exit high-speed reclosure flow process immediately, Otherwise, execution step two;
Step 2, detection are configured with whether the relay protection device of auto recloser sends trip signal, if so, move back Go out high-speed reclosure flow process, otherwise execution step three;
Step 3, judges whether circuit breaker trip meets fault trip condition, if so, exits high-speed reclosure flow process, no High-speed reclosure is carried out then.
Further, it is described exit high-speed reclosure flow process and refer to carry out conventional automatic reclosing or do not carry out reclosing.
Further, fault trip condition described in step 3 refers to following either condition:
(1)Wherein I is line current,For overcurrent protection setting valve;
(2)I0>I0.set, wherein I0For line current zero-sequence component, I0.setFor the current setting of ground protection;
(3)Wherein Z is measurement impedance,For distance protection Ι Ι Ι section setting valves.
Relative to prior art, the beneficial effects of the present invention is:The present invention is capable of identify that chopper jump and which is adopted The operation of reclosing immediately is taken, shortens the reclosure time after chopper jump, so as to improve power system to greatest extent Power supply reliability and operation stability.
Description of the drawings
Configuration schematic diagrams of the Fig. 1 for relay protection of transmission line equipment;
Flow charts of the Fig. 2 for high-speed reclosure.
Specific embodiment
With reference to the accompanying drawings and examples the present invention is elaborated.
Fig. 1 is the configuration schematic diagram of relay protection of transmission line equipment, is configured with 3 sets of protection equipments, wherein only protecting in 1 It is configured with auto recloser.
Refer to shown in Fig. 2, a kind of high-speed reclosure method with chopper jump identification ability of the present invention, including with Lower step:
Step one, after circuit breaker trip, detect whether immediately for manual brake separating, if so, to exit high-speed reclosure flow process, Otherwise, execution step two;
Step 2, detection are configured with whether the relay protection device of auto recloser sends trip signal, if so, move back Go out high-speed reclosure flow process, otherwise execution step three;
Step 3, judge whether circuit breaker trip meets fault trip condition, if so, exit high-speed reclosure flow process, it is no High-speed reclosure is carried out then.
Wherein, exiting high-speed reclosure flow process and referring to carries out conventional automatic reclosing or does not carry out reclosing.
Fault trip condition described in step 3 refers to following either condition:
(1)Wherein I is line current,For overcurrent protection setting valve;
(2)I0>I0.set, wherein I0For line current zero-sequence component, I0.setFor the current setting of ground protection;
(3)Wherein Z is measurement impedance,For distance protection Ι Ι Ι section setting valves.
Embodiment one:
Power system is in normal operating condition originally, and 3 sets of protections put into.t1Moment circuit breaker Q F jump.It is then our The flow process of method is:
Step one, detects without manual brake separating, into step 2;
Step 2, detects protection 1 and does not send trip signal, into step 3;
Step 3, judges to be unsatisfactory for fault trip condition using line current or measurement impedance, therefore is quickly overlapped Lock, sends reclosing command immediately, and close chopper.
Embodiment two:
Power system is in normal operating condition originally, and 3 sets of protections put into.t2Moment protects 1 action breaker QF to jump Lock.Then the flow process of this method is:
Step one, detects without manual brake separating, into step 2;
Step 2, detects protection 1 and sends trip signal, exit high-speed reclosure flow process.
Embodiment three:
Power system is in normal operating condition originally, and 3 sets of protections put into.t3Moment protects 2 (overcurrent protections) to move Make, the tripping operation of circuit breaker Q F.Then the flow process of this method is:
Step one, detects without manual brake separating, into step 2;
Step 2, detects protection 1 and does not send trip signal, into step 3;
Step 3, is judged using line current or measurement impedance, due to protecting 2 (overcurrent protection) action, therefore Meet following:
Wherein I is line current,For overcurrent protection setting valve.
Therefore exit high-speed reclosure flow process.

Claims (3)

1. a kind of high-speed reclosure method with chopper jump identification ability, it is characterised in that comprise the following steps:
Step one, after circuit breaker trip, detect whether immediately for manual brake separating, if so, to exit high-speed reclosure flow process, it is no Then, execution step two;
Step 2, detection are configured with whether the relay protection device of auto recloser sends trip signal, if so, exit fast Fast reclosing flow process, otherwise execution step three;
Step 3, judge whether circuit breaker trip meets fault trip condition, if so, exit high-speed reclosure flow process, otherwise enter Row high-speed reclosure.
2. a kind of high-speed reclosure method with chopper jump identification ability according to claim 1, its feature exist In, it is described exit high-speed reclosure flow process and refer to carry out conventional automatic reclosing or do not carry out reclosing.
3. a kind of high-speed reclosure method with chopper jump identification ability according to claim 1, its feature exist In fault trip condition described in step 3 refers to following either condition:
(1)Wherein I is line current,For overcurrent protection setting valve;
(2)I0>I0.set, wherein I0For line current zero-sequence component, I0.setFor the current setting of ground protection;
(3)Wherein Z is measurement impedance,For distance protection Ι Ι Ι section setting valves.
CN201610980840.8A 2016-11-08 2016-11-08 A kind of high-speed reclosure method with breaker jump recognition capability Expired - Fee Related CN106549355B (en)

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CN201610980840.8A CN106549355B (en) 2016-11-08 2016-11-08 A kind of high-speed reclosure method with breaker jump recognition capability

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Application Number Priority Date Filing Date Title
CN201610980840.8A CN106549355B (en) 2016-11-08 2016-11-08 A kind of high-speed reclosure method with breaker jump recognition capability

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107240958A (en) * 2017-08-02 2017-10-10 国网上海市电力公司 A kind of switch jump processing method for the standby throwing of network
CN110829360A (en) * 2019-11-05 2020-02-21 天津航空机电有限公司 Method for controlling high-voltage direct-current circuit breaker by hardware integrated circuit
CN112130063A (en) * 2020-08-28 2020-12-25 许继集团有限公司 Detection and protection method for mechanical switch tripping of hybrid high-voltage direct-current circuit breaker
CN113447810A (en) * 2021-06-29 2021-09-28 积成电子股份有限公司 Device and method for realizing switching-on and switching-off operation detection and misoperation prevention of ring main unit
CN113985195A (en) * 2021-10-13 2022-01-28 深圳供电局有限公司 Method and system for judging circuit breaker stealing tripping based on power grid fault time sequence
CN116780639A (en) * 2023-08-25 2023-09-19 国网浙江省电力有限公司宁波供电公司 Distributed photovoltaic grid-connected control method, device and storage medium

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CN104779705A (en) * 2015-05-06 2015-07-15 特变电工湖南智能电气有限公司 Line protection measurement and control method and device

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107240958A (en) * 2017-08-02 2017-10-10 国网上海市电力公司 A kind of switch jump processing method for the standby throwing of network
CN107240958B (en) * 2017-08-02 2021-01-19 国网上海市电力公司 Switch stealing and tripping processing method for network backup power switching
CN110829360A (en) * 2019-11-05 2020-02-21 天津航空机电有限公司 Method for controlling high-voltage direct-current circuit breaker by hardware integrated circuit
CN110829360B (en) * 2019-11-05 2021-09-14 天津航空机电有限公司 Method for controlling high-voltage direct-current circuit breaker by hardware integrated circuit
CN112130063A (en) * 2020-08-28 2020-12-25 许继集团有限公司 Detection and protection method for mechanical switch tripping of hybrid high-voltage direct-current circuit breaker
CN113447810A (en) * 2021-06-29 2021-09-28 积成电子股份有限公司 Device and method for realizing switching-on and switching-off operation detection and misoperation prevention of ring main unit
CN113447810B (en) * 2021-06-29 2022-12-27 积成电子股份有限公司 Device and method for realizing switching-on and switching-off operation detection and misoperation prevention of ring main unit
CN113985195A (en) * 2021-10-13 2022-01-28 深圳供电局有限公司 Method and system for judging circuit breaker stealing tripping based on power grid fault time sequence
CN116780639A (en) * 2023-08-25 2023-09-19 国网浙江省电力有限公司宁波供电公司 Distributed photovoltaic grid-connected control method, device and storage medium
CN116780639B (en) * 2023-08-25 2024-01-16 国网浙江省电力有限公司宁波供电公司 Distributed photovoltaic grid-connected control method, device and storage medium

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Granted publication date: 20190301