CN105024358A - Working method of fault equivalence and intra-station load transfer module - Google Patents
Working method of fault equivalence and intra-station load transfer module Download PDFInfo
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- CN105024358A CN105024358A CN201510484133.5A CN201510484133A CN105024358A CN 105024358 A CN105024358 A CN 105024358A CN 201510484133 A CN201510484133 A CN 201510484133A CN 105024358 A CN105024358 A CN 105024358A
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Abstract
The invention discloses a working method of a fault equivalence and intra-station load transfer module. The working method is suitable for the fault equivalence and intra-station load transfer module of a load transfer scheme generation system when the power supply side of a power distribution network fails to work. A bus voltage loss load transfer task can be decomposed into a feeder fault recovery problem and an intra-station load transfer problem, an intra-station load transfer scheme is generated, and the feeder fault recovery problem is submitted to a fault recovery processing module.
Description
Technical field
The present invention relates to the method for work of a kind of fault equivalence and station internal loading shift module, the fault equivalence of load transfer plan scheme generation system and station internal loading shift module when being applicable to power distribution network source-side fault.
Background technology
Power supply reliability is the leading indicator of examination electric power system quality.Improving power supply reliability is one of core drive of intelligent grid construction, particularly intelligent power distribution network construction.In the construction of intelligent distribution network, practical along with feeder automation function, electrical power distribution automatization system effectively shorten power distribution network break down after dead electricity time of non-faulting section, electrical power distribution automatization system becomes the important means improving distribution network reliability.
Feeder automation is one of Core Feature of electrical power distribution automatization system, can realize the fault detect under power distribution network accident condition, Fault Isolation and service restoration function.Wherein power distribution network service restoration is a multi-target non-linear restricted problem.In this way to solve the problem, intelligent algorithm and heuristic search algorithm are the most general, and many documents conduct in-depth research these two kinds of methods.Although intelligent algorithm can form more excellent recovery scheme, iterations is many, and amount of calculation is large, cannot meet the requirement of distribution network reliability.And heuristic search search speed is fast, fault recovery can be realized rapidly.In the engineering of reality, in order to improve the formation speed of service restoration scheme further, the general heuristic search adopting simplification, realizes within 5 ~ 10s, generate service restoration scheme.
It is many that the source-side fault such as substation bus bar decompression, main transformer fault relate to customer interrupted, and coverage is large, although frequency is few, is subject to the attention of power department equally., there is source-side fault in peak times of power consumption, depend merely on the inner reserve capacity of transformer station and often cannot recover all loads in growing along with power load.Along with the raising of feeder line contact rate, realizing large-scale load safe transfer by feeder line outside coupling switch becomes possibility to tackle transformer station's not enough problem of inner reserve capacity.
Compared with the service restoration problem after feeder fault, the region involved by source-side fault load transfer plan problem is larger.Because the feeder line that every bar bus connects is generally at 8 ~ 12, source-side fault load transfer plan is equivalent to the superposition of multiple feeder fault service restoration problem.If source-side fault load transfer plan problem is also regarded as a multi-target non-linear restricted problem, direct employing intelligent algorithm and heuristic search algorithm generate its load transfer plan scheme, then the dimension of problem becomes geometric progression to rise with search volume, makes generation fast very difficult.
Summary of the invention
The object of the invention is the defect overcoming prior art, the method of work of a kind of fault equivalence and station internal loading shift module is provided, the fault equivalence of load transfer plan scheme generation system and station internal loading shift module when being applicable to power distribution network source-side fault, can be that feeder fault recovers problem and station internal loading branch problem bus loss of pressure load transfer plan Task-decomposing, generate station internal loading transfer scheme, and problem of being recovered by feeder fault submits to Petri Nets module.
The technical scheme realizing above-mentioned purpose is: the method for work of a kind of fault equivalence and station internal loading shift module, described fault equivalence and station internal loading shift module are connected with Petri Nets module with bus loss of pressure type identification module respectively, and this method of work comprises the following steps:
S1, described fault equivalence and station internal loading shift module from described bus loss of pressure type identification module obtain pending without station internal loading transfer bus loss of pressure quantity, have station internal loading transfer bus loss of pressure quantity and corresponding load transfer plan district;
S2, whether timing inquiry has needs internal loading transfer bus loss of pressure in nothing station to be processed, if so, then carries out step S3; If not, then carry out step S4,
S3, what process if necessary shifts bus loss of pressure without station internal loading, to the feeder line substation exit circuit breaker of interconnection switch be had to disconnect, all dead electricity sections of this feeder line regard area to be restored as, so just recover problem having resolved into multiple feeder fault without station internal loading transfer bus loss of pressure;
S4, whether timing inquiry has to be processedly need station internal loading transfer bus loss of pressure, if so, then carries out step S5; If not, then step S6 is carried out;
S5, the station internal loading that has processed if necessary shifts bus loss of pressure, then station internal loading transfer bus loss of pressure will be had to resolve into station internal loading transfer and multiple feeder fault recovery problem, generate station internal loading transfer scheme;
S6, described fault equivalence and station internal loading shift module notify that described Petri Nets module needs the fault recovery district of feeder fault quantity to be processed and correspondence;
S7, waits for 1 second;
S8, determines whether all to be disposed, if so, directly terminates; If not, then step S1 is returned.
The method of work of fault equivalence of the present invention and station internal loading shift module, beneficial effect is compared with prior art: the fault equivalence of load transfer plan scheme generation system and station internal loading shift module when being applicable to power distribution network source-side fault, can be that feeder fault recovers problem and station internal loading branch problem bus loss of pressure load transfer plan Task-decomposing, generate station internal loading transfer scheme, and problem of being recovered by feeder fault submits to Petri Nets module.
Accompanying drawing explanation
Fig. 1 is the FB(flow block) of the method for work of fault equivalence of the present invention and station internal loading shift module.
Embodiment
In order to make those skilled in the art can understand technical scheme of the present invention better, below in conjunction with accompanying drawing, its embodiment is described in detail:
Embodiments of the invention: refer to Fig. 1, fault equivalence and station internal loading shift module are connected with Petri Nets module with bus loss of pressure type identification module respectively, and the method for work of a kind of fault equivalence and station internal loading shift module, comprises the following steps:
S1, fault equivalence and station internal loading shift module from bus loss of pressure type identification module obtain pending without station internal loading transfer bus loss of pressure quantity, have station internal loading transfer bus loss of pressure quantity and corresponding load transfer plan district;
S2, whether timing inquiry has needs internal loading transfer bus loss of pressure in nothing station to be processed, if so, then carries out step S3; If not, then carry out step S4,
S3, what process if necessary shifts bus loss of pressure without station internal loading, disconnect there being the feeder line substation exit circuit breaker of interconnection switch, all dead electricity sections of this feeder line regard area to be restored as, so just recovering problem having resolved into multiple feeder fault without station internal loading transfer bus loss of pressure, then carrying out step S6;
S4, whether timing inquiry has to be processedly need station internal loading transfer bus loss of pressure, if so, then carries out step S5; If not, then step S6 is carried out;
S5, the station internal loading that has processed if necessary shifts bus loss of pressure, then station internal loading transfer bus loss of pressure will be had to resolve into station internal loading transfer and multiple feeder fault recovery problem, generate station internal loading transfer scheme, then carry out step S6;
S6, fault equivalence and station internal loading shift module notice Petri Nets module need the fault recovery district of feeder fault quantity to be processed and correspondence;
S7, waits for 1 second;
S8, determines whether all to be disposed, if so, directly terminates; If not, then step S1 is returned.
The method of work of fault equivalence of the present invention and station internal loading shift module, the fault equivalence of load transfer plan scheme generation system and station internal loading shift module when being applicable to power distribution network source-side fault, can be that feeder fault recovers problem and station internal loading branch problem bus loss of pressure load transfer plan Task-decomposing, generate station internal loading transfer scheme, and problem of being recovered by feeder fault submits to Petri Nets module.
Those of ordinary skill in the art will be appreciated that, above embodiment is only used to the present invention is described, and be not used as limitation of the invention, as long as in spirit of the present invention, all will drop in Claims scope of the present invention the change of the above embodiment, modification.
Claims (1)
1. a method of work for fault equivalence and station internal loading shift module, described fault equivalence and station internal loading shift module are connected with Petri Nets module with bus loss of pressure type identification module respectively, and it is characterized in that, described method of work comprises the following steps:
S1, described fault equivalence and station internal loading shift module from described bus loss of pressure type identification module obtain pending without station internal loading transfer bus loss of pressure quantity, have station internal loading transfer bus loss of pressure quantity and corresponding load transfer plan district;
S2, whether timing inquiry has needs internal loading transfer bus loss of pressure in nothing station to be processed, if so, then carries out step S3; If not, then carry out step S4,
S3, what process if necessary shifts bus loss of pressure without station internal loading, to the feeder line substation exit circuit breaker of interconnection switch be had to disconnect, all dead electricity sections of this feeder line regard area to be restored as, so just recover problem having resolved into multiple feeder fault without station internal loading transfer bus loss of pressure;
S4, whether timing inquiry has to be processedly need station internal loading transfer bus loss of pressure, if so, then carries out step S5; If not, then step S6 is carried out;
S5, the station internal loading that has processed if necessary shifts bus loss of pressure, then station internal loading transfer bus loss of pressure will be had to resolve into station internal loading transfer and multiple feeder fault recovery problem, generate station internal loading transfer scheme;
S6, described fault equivalence and station internal loading shift module notify that described Petri Nets module needs the fault recovery district of feeder fault quantity to be processed and correspondence;
S7, waits for 1 second;
S8, determines whether all to be disposed, if so, directly terminates; If not, then step S1 is returned.
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| CN201510484133.5A CN105024358A (en) | 2015-08-10 | 2015-08-10 | Working method of fault equivalence and intra-station load transfer module |
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| CN201510484133.5A CN105024358A (en) | 2015-08-10 | 2015-08-10 | Working method of fault equivalence and intra-station load transfer module |
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Citations (4)
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| CN101459337A (en) * | 2008-12-30 | 2009-06-17 | 上海慧伦电气有限公司 | Stabilized control system capable of accurately cut load selection according to load path |
| CN102565630A (en) * | 2012-02-22 | 2012-07-11 | 中国电力科学研究院 | State labeling method for estimating reliability of distribution network |
| CN103595054A (en) * | 2013-11-28 | 2014-02-19 | 国家电网公司 | Fault power supplying recovering method applied to single busbar voltage failure |
| CN103956748A (en) * | 2014-03-31 | 2014-07-30 | 国家电网公司 | Method for generating fault recovery scheme for load transfer when multiple buses are in loss of voltage |
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2015
- 2015-08-10 CN CN201510484133.5A patent/CN105024358A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101459337A (en) * | 2008-12-30 | 2009-06-17 | 上海慧伦电气有限公司 | Stabilized control system capable of accurately cut load selection according to load path |
| CN102565630A (en) * | 2012-02-22 | 2012-07-11 | 中国电力科学研究院 | State labeling method for estimating reliability of distribution network |
| CN103595054A (en) * | 2013-11-28 | 2014-02-19 | 国家电网公司 | Fault power supplying recovering method applied to single busbar voltage failure |
| CN103956748A (en) * | 2014-03-31 | 2014-07-30 | 国家电网公司 | Method for generating fault recovery scheme for load transfer when multiple buses are in loss of voltage |
Non-Patent Citations (1)
| Title |
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| 朱国防，高厚磊，徐丙垠，李天友: "配电网电源侧故障下大范围负荷转移优化策略及实现方法", 《电力系统保护与控制》 * |
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Application publication date: 20151104 |