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 PDFInfo
- 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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- Prior art keywords
- speed reclosure
- reclosure
- flow process
- speed
- chopper
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- 238000000034 method Methods 0.000 title claims abstract description 34
- 230000004224 protection Effects 0.000 claims abstract description 28
- 238000001514 detection method Methods 0.000 claims abstract description 4
- 238000005259 measurement Methods 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 230000008033 biological extinction Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/02—Details
- H02H3/06—Details with automatic reconnection
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/02—Details
- H02H3/06—Details with automatic reconnection
- H02H3/066—Reconnection 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
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.
Priority Applications (1)
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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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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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CN106549355A true CN106549355A (en) | 2017-03-29 |
CN106549355B CN106549355B (en) | 2019-03-01 |
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Cited By (6)
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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CN201234124Y (en) * | 2008-07-09 | 2009-05-06 | 江苏省电力公司泗洪县供电公司 | Single-phase grounding failure wire selection automatic processing equipment for low current grounding system |
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CN201234124Y (en) * | 2008-07-09 | 2009-05-06 | 江苏省电力公司泗洪县供电公司 | Single-phase grounding failure wire selection automatic processing equipment for low current grounding system |
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Cited By (10)
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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