CN102354977A - Feeder fault handling method - Google Patents
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- CN102354977A CN102354977A CN2011103199831A CN201110319983A CN102354977A CN 102354977 A CN102354977 A CN 102354977A CN 2011103199831 A CN2011103199831 A CN 2011103199831A CN 201110319983 A CN201110319983 A CN 201110319983A CN 102354977 A CN102354977 A CN 102354977A
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Abstract
The invention introduces a feeder fault handling method, which comprises the following steps of: 1) conducting online search and locating a feeder fault; 2) conducting network topology analysis to draw a conclusion; 3) finding out the section of the fault; 4) searching for the boundary switch of the fault section and making a fault isolation plan; 5) defining non-fault power outage areas; 6) making power supply restoration plans for outage areas on the upstream side and the downstream side of the fault; 7) conducting safety evaluation to the downstream power supply restoration plan; and 8) executing the plans according to the safety evaluation obtained at the step 7. The feeder fault handling method has the advantages that: 1) the method is suitable for the automatic construction of feeders of a power distribution network which is wired in any way; 2) the practicability is high, the impedance parameters of the equipment of the distribution network are not required and the power flow calculation module is not required to be called; and 3) the power supply restoration can be separately conducted to the non-fault sections, so as to reduce the power outage range and decrease the power outage duration as much as possible.
Description
Technical field
The invention belongs to the electrical engineering technical field, relate in particular to a kind of feeder fault processing method that is applicable to electrical power distribution automatization system.
Background technology
Feeder automation is the Core Feature of electrical power distribution automatization system.Realize feeder automation, can when feeder line breaks down, dwindle the fault outage scope, reduced the interruption duration that fault causes, thereby improved power supply reliability.The feeder fault processing method is to realize the main means of feeder automation, and its key problem is meant how to realize the feeder fault location, how isolated fault and how to recover the power supply of non-fault zone, is called for short Fault Diagnosis, location, isolation and recovery.Tradition feeder fault processing method generally is based upon on the trend computing module; ADVANCED APPLICATIONS module coupling degrees such as feeder fault processing module and the calculating of distribution trend are bigger; Increased the complexity that feeder fault is handled; Reduce the feeder fault processing reliability, influenced the practicality that feeder fault is handled.In addition, because distribution net equipment is of a great variety, device parameter obtains very difficulty, finally causes distribution calculation of tidal current and actual conditions difference bigger than normal, has influenced feeder fault processing reliability and efficient.
Summary of the invention
The technical problem that the present invention will solve is: the defective to traditional feeder fault processing method, a kind of improved feeder fault processing method is provided, and use this method passable,
(1), the coupled relation between releasing feeder fault processing module and distribution trend computing module;
(2), improve the actuating logic of existing isolation scheme and recovery scheme, when the success of Fault Isolation part, can the operating part recovery scheme, flexibility, the rapidity of raising service restoration.
Technical solution of the present invention is: above-mentioned a kind of feeder fault processing method is to be following step:
(1), uses the on-line search of feeder fault processing server; Treat that this feeder fault processing server receives the FTU (abbreviation of English " Feeder Terminal Unit "; The Chinese translation be " line feed terminals unit ") on the RTU (abbreviation of English " Remote Terminal Unit " in the fault message that send or the transformer station; The Chinese translation be " terminal unit unit ") on the feeder line gate out switch that send protect action message, wait for 10～300 seconds.If in this setting stand-by period, receive new fault message or feeder line gate out switch protection action message, even the wait timing is made zero and restarted the accumulative total stand-by period.If in the setting stand-by period, do not receive new fault message or feeder line gate out switch protection action message, use conventional method to carry out the feeder fault location:
(2), take place according to fault before the record of switch and feeder line gate out switch state in the feeder line, use conventional method to carry out the network topology analysis, draw network topology and analyze conclusion;
(3), the feeder line gate out switch protection action message of sending on the RTU in fault message that send on the FTU that receives according to step (1) or the transformer station and step (2) the conclusion of the network topology that obtains analysis; Use conventional method to carry out fault location and handle, obtain the fault location result and promptly find the guilty culprit section.During power distribution network open loop operation, as long as the zone detection between the adjacent switch is sent fault message to any one boundary switch, then looking this section is that fault section is implemented above-mentioned fault location processing.And when the power distribution network operation with closed ring, do not provide fault location to handle;
(4), the guilty culprit section that promptly finds according to the resulting fault location result of step (3), the boundary switch of searching for this fault section utilizes the entrained information of boundary switch that is searched out to formulate fault isolation schemes by conventional method;
(5), use conventional method Simulation execution step (4) fault isolation schemes that obtains, Simulation execution finishes, and uses conventional method to carry out the network topology analysis to the Simulation execution result, draws network topology analysis conclusion.Then, analyze conclusion, the non-fault outage zone of using the conventional method delimitation to form by fault upper reaches power supply interrupted district and fault down stream power supply interrupted district according to this network topology.Wherein, said fault upper reaches power supply interrupted district is meant that said guilty culprit zone is to the power supply interrupted district between the said feeder line gate out switch; The fault down stream power supply interrupted district is meant that said guilty culprit zone is to the power supply interrupted district between the said boundary switch;
(6), search step (5) power supply interrupted district place, the fault upper reaches feeder line gate out switch of delimiting, utilize the entrained information of feeder line gate out switch that is searched out, use conventional method to formulate the fault upper reaches power supply interrupted district scheme that restores electricity; The boundary switch of the fault down stream power supply interrupted district that search step (5) delimited is utilized the entrained information of boundary switch that is searched out, and uses conventional method to formulate the fault down stream power supply interrupted district scheme that restores electricity;
(7), to step (6) the fault down stream power supply interrupted district that the obtains scheme that restores electricity, that uses the downstream power supply interrupted district waits to recover load, changes supplying feeder line gate out switch rated capacity, current current value to come the downstream recovery scheme is carried out safety evaluatio.Supply the current electric current of feeder line to supply feeder line gate out switch rated capacity less than changeing if load current to be recovered adds to change, then the fail safe to the downstream recovery scheme gives sure evaluation; Otherwise, negative evaluation is made in the fail safe of downstream recovery scheme;
(8), according to step (7) safety evaluatio that obtains; If promptly step (7) safety evaluatio that obtains is sure, use conventional method execution in step (4) institute's fault isolation schemes that obtains and step (6) the fault upper reaches power supply interrupted district that obtains scheme and step (6) the fault down stream power supply interrupted district that the obtains scheme that restores electricity that restores electricity.If step (7) safety evaluatio that obtains is negated; Use conventional method execution in step (4) institute's fault isolation schemes that obtains and step (6) the fault upper reaches power supply interrupted district that the obtains scheme that restores electricity, the fault down stream power supply interrupted district of abandoning execution in step (6) the corresponding negative evaluation that the obtains scheme that restores electricity.
The invention has the beneficial effects as follows: this method,
(1), is applicable to the feeder automation construction of any mode of connection power distribution network;
(2), practical, need not the impedance parameter of distribution net equipment, need not to call the trend computing module;
(3), can separately carry out service restoration to the non-fault section that is in the fault upstream and downstream handles; Isolate under the case of successful at partial fault; Can carry out part and recover, improve and recover processing more flexible, as much as possible dwindle the power failure scope and reduce interruption duration;
(4) evaluation of the non-fault section recovery scheme in downstream is adopted to change and is supplied current electric current of feeder line gate out switch and rated capacity, and very strong directive function is arranged when the dispatcher is carried out the physical fault recovery operation.
Embodiment
Embodiment 1:
(1), use the on-line search of feeder fault processing server, treat that this feeder fault processing server receives the feeder line gate out switch that send on the RTU in the fault message that send on the FTU or the transformer station and protects action message, wait for 10～300 seconds.If in this setting stand-by period, receive new fault message or feeder line gate out switch protection action message, even the wait timing is made zero and restarted the accumulative total stand-by period.
(2), take place according to fault before the record of switch and feeder line gate out switch state in the feeder line, use conventional method to carry out the network topology analysis, draw network topology and analyze conclusion;
(3), the feeder line gate out switch protection action message of sending on the RTU in fault message that send on the FTU that receives according to step (1) or the transformer station and step (2) the conclusion of the network topology that obtains analysis; Use conventional method to carry out fault location and handle, find the guilty culprit section.
(4), the guilty culprit section that finds according to step (3), the boundary switch of searching for this fault section utilizes the entrained information of boundary switch that is searched out to formulate fault isolation schemes by conventional method;
(5), use conventional method Simulation execution step (4) fault isolation schemes that obtains, Simulation execution finishes, and uses conventional method to carry out the network topology analysis to the Simulation execution result, draws network topology analysis conclusion.Then, analyze conclusion, the non-fault outage zone of using the conventional method delimitation to form by fault upper reaches power supply interrupted district and fault down stream power supply interrupted district according to this network topology;
(6), search step (5) power supply interrupted district place, the fault upper reaches feeder line gate out switch of delimiting, utilize the entrained information of feeder line gate out switch that is searched out, use conventional method to formulate the fault upper reaches power supply interrupted district scheme that restores electricity; The boundary switch of the fault down stream power supply interrupted district that search step (5) delimited is utilized the entrained information of boundary switch that is searched out, and uses conventional method to formulate the fault down stream power supply interrupted district scheme that restores electricity;
(7), to step (6) the fault down stream power supply interrupted district that the obtains scheme that restores electricity, that uses the downstream power supply interrupted district waits to recover load, changes supplying feeder line gate out switch rated capacity, current current value to come the downstream recovery scheme is carried out safety evaluatio.Supply the current electric current of feeder line to supply feeder line gate out switch rated capacity less than changeing if load current to be recovered adds to change, then the fail safe to the downstream recovery scheme gives sure evaluation; Otherwise, negative evaluation is made in the fail safe of downstream recovery scheme;
(8), use conventional method execution in step (4) institute's fault isolation schemes that obtains and step (6) the fault upper reaches power supply interrupted district that obtains scheme and step (6) the fault down stream power supply interrupted district that the obtains scheme that restores electricity that restores electricity if step (7) safety evaluatio that obtains is sure.If step (7) safety evaluatio that obtains is negated; Use conventional method execution in step (4) institute's fault isolation schemes that obtains and step (6) the fault upper reaches power supply interrupted district that the obtains scheme that restores electricity, the fault down stream power supply interrupted district of abandoning execution in step (6) the corresponding negative evaluation that the obtains scheme that restores electricity.
Embodiment 2:
(1), use the on-line search of feeder fault processing server, treat that this feeder fault processing server receives the feeder line gate out switch that send on the RTU in the fault message that send on the FTU or the transformer station and protects action message, wait for 10～300 seconds.If in the setting stand-by period, do not receive new fault message or feeder line gate out switch protection action message, use conventional method to carry out the feeder fault location;
Step (2)～(8) are with embodiment 1.
Claims (1)
1. feeder fault processing method, this method is following step:
(1), use the on-line search of feeder fault processing server, treat that this feeder fault processing server receives the feeder line gate out switch that send on the RTU in the fault message that send on the FTU or the transformer station and protects action message, wait for 10～300 seconds.If in this setting stand-by period, receive new fault message or feeder line gate out switch protection action message, even the wait timing is made zero and restarted the accumulative total stand-by period.If in the setting stand-by period, do not receive new fault message or feeder line gate out switch protection action message, use conventional method to carry out the feeder fault location;
(2), take place according to fault before the record of switch and feeder line gate out switch state in the feeder line, use conventional method to carry out the network topology analysis, draw network topology and analyze conclusion;
(3), the feeder line gate out switch protection action message of sending on the RTU in fault message that send on the FTU that receives according to step (1) or the transformer station and step (2) the conclusion of the network topology that obtains analysis; Use conventional method to carry out fault location and handle, find the guilty culprit section.
(4), the guilty culprit section that finds according to step (3), the boundary switch of searching for this fault section utilizes the entrained information of boundary switch that is searched out to formulate fault isolation schemes by conventional method;
(5), use conventional method Simulation execution step (4) fault isolation schemes that obtains, Simulation execution finishes, and uses conventional method to carry out the network topology analysis to the Simulation execution result, draws network topology analysis conclusion.Then, analyze conclusion, the non-fault outage zone of using the conventional method delimitation to form by fault upper reaches power supply interrupted district and fault down stream power supply interrupted district according to this network topology;
(6), search step (5) power supply interrupted district place, the fault upper reaches feeder line gate out switch of delimiting, utilize the entrained information of feeder line gate out switch that is searched out, use conventional method to formulate the fault upper reaches power supply interrupted district scheme that restores electricity; The boundary switch of the fault down stream power supply interrupted district that search step (5) delimited is utilized the entrained information of boundary switch that is searched out, and uses conventional method to formulate the fault down stream power supply interrupted district scheme that restores electricity;
(7), to step (6) the fault down stream power supply interrupted district that the obtains scheme that restores electricity, that uses the downstream power supply interrupted district waits to recover load, changes supplying feeder line gate out switch rated capacity, current current value to come the downstream recovery scheme is carried out safety evaluatio.Supply the current electric current of feeder line to supply feeder line gate out switch rated capacity less than changeing if load current to be recovered adds to change, then the fail safe to the downstream recovery scheme gives sure evaluation; Otherwise, negative evaluation is made in the fail safe of downstream recovery scheme;
(8), use conventional method execution in step (4) institute's fault isolation schemes that obtains and step (6) the fault upper reaches power supply interrupted district that obtains scheme and step (6) the fault down stream power supply interrupted district that the obtains scheme that restores electricity that restores electricity if step (7) safety evaluatio that obtains is sure.If step (7) safety evaluatio that obtains is negated; Use conventional method execution in step (4) institute's fault isolation schemes that obtains and step (6) the fault upper reaches power supply interrupted district that the obtains scheme that restores electricity, the fault down stream power supply interrupted district of abandoning execution in step (6) the corresponding negative evaluation that the obtains scheme that restores electricity.
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| CN102916431A (en) * | 2012-09-20 | 2013-02-06 | 中国电力科学研究院 | Assisted decision making method for load transfer in regional power grid |
| CN103605047A (en) * | 2013-11-29 | 2014-02-26 | 国家电网公司 | Power restoration monitoring system and method |
| CN103746376A (en) * | 2014-01-21 | 2014-04-23 | 重庆大学 | Power distribution network dynamic power restoration method based on load curve |
| CN103872688A (en) * | 2014-03-31 | 2014-06-18 | 国网上海市电力公司 | Automatic protecting method for double-annular-ring four-power-supply structure feeder |
| CN104751300A (en) * | 2015-04-22 | 2015-07-01 | 国家电网公司 | Method and system for quick emergency handling of power outage of transformer substation |
| CN104882867A (en) * | 2014-02-27 | 2015-09-02 | 国家电网公司 | Power distribution network self-healing control method and system |
| CN106099926A (en) * | 2016-08-25 | 2016-11-09 | 东方电子股份有限公司 | A kind of power distribution network secondary based on the rejection of trunk supply path turns method of supplying power to |
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| CN106253252A (en) * | 2016-08-27 | 2016-12-21 | 国网山东省电力公司蓬莱市供电公司 | A kind of feeder automation fault self-recovery method of high fault tolerance |
| CN106872854A (en) * | 2017-01-26 | 2017-06-20 | 南京陇源汇能电力科技有限公司 | The fault handling method of power distribution automation equipment in a kind of distribution system |
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| CN102916431B (en) * | 2012-09-20 | 2015-01-21 | 中国电力科学研究院 | Assisted decision making method for load transfer in regional power grid |
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| CN103746376A (en) * | 2014-01-21 | 2014-04-23 | 重庆大学 | Power distribution network dynamic power restoration method based on load curve |
| CN103746376B (en) * | 2014-01-21 | 2015-09-09 | 重庆大学 | A kind of power distribution network dynamic power restoration method based on load curve |
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| CN103872688A (en) * | 2014-03-31 | 2014-06-18 | 国网上海市电力公司 | Automatic protecting method for double-annular-ring four-power-supply structure feeder |
| CN104751300B (en) * | 2015-04-22 | 2018-05-15 | 国家电网公司 | A kind of quick emergency processing method of substation's power outage and system |
| WO2016169238A1 (en) * | 2015-04-22 | 2016-10-27 | 国网浙江省电力公司杭州供电公司 | Quick emergency processing method and system for power failure accident of transformer substation |
| CN104751300A (en) * | 2015-04-22 | 2015-07-01 | 国家电网公司 | Method and system for quick emergency handling of power outage of transformer substation |
| CN106099926A (en) * | 2016-08-25 | 2016-11-09 | 东方电子股份有限公司 | A kind of power distribution network secondary based on the rejection of trunk supply path turns method of supplying power to |
| CN106229975A (en) * | 2016-08-25 | 2016-12-14 | 东方电子股份有限公司 | A kind of distribution network load based on path node difference matching turns for method for splitting |
| CN106099926B (en) * | 2016-08-25 | 2018-03-27 | 东方电子股份有限公司 | A kind of power distribution network based on the rejection of trunk supply path is secondary to turn method of supplying power to |
| CN106229975B (en) * | 2016-08-25 | 2018-06-08 | 东方电子股份有限公司 | A kind of distribution network load based on path node difference matching turns for method for splitting |
| CN106253252A (en) * | 2016-08-27 | 2016-12-21 | 国网山东省电力公司蓬莱市供电公司 | A kind of feeder automation fault self-recovery method of high fault tolerance |
| CN106872854A (en) * | 2017-01-26 | 2017-06-20 | 南京陇源汇能电力科技有限公司 | The fault handling method of power distribution automation equipment in a kind of distribution system |
| CN106872854B (en) * | 2017-01-26 | 2019-10-01 | 南京陇源汇能电力科技有限公司 | The fault handling method of power distribution automation equipment in a kind of distribution system |
| CN108493928A (en) * | 2018-03-28 | 2018-09-04 | 国电南瑞科技股份有限公司 | Distributed feeder automation distribution line topology ad hoc network method |
| CN111337787A (en) * | 2020-05-16 | 2020-06-26 | 广州思泰信息技术有限公司 | Remote detection device for primary and secondary fusion equipment of power distribution network |
| CN111337787B (en) * | 2020-05-16 | 2020-08-07 | 广州思泰信息技术有限公司 | Remote detection device for primary and secondary fusion equipment of power distribution network |
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