CN105071358A - System for generating load transfer scheme when power distribution network power supply side fails - Google Patents
System for generating load transfer scheme when power distribution network power supply side fails Download PDFInfo
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- CN105071358A CN105071358A CN201510485738.6A CN201510485738A CN105071358A CN 105071358 A CN105071358 A CN 105071358A CN 201510485738 A CN201510485738 A CN 201510485738A CN 105071358 A CN105071358 A CN 105071358A
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Abstract
The invention discloses a system for generating a load transfer scheme when a power distribution network power supply side fails. The system comprises a bus voltage failure type judgment module, a fault equivalence and instation load transfer scheme generating module, a fault recovery processing module and a load transfer scheme integration module, which are connected in sequence. The fault equivalence and instation load transfer scheme generating module is connected with the load transfer scheme integration module. The system for generating the load transfer scheme when the power distribution network power supply side fails can quickly generate the load safety transfer scheme when the power distribution network power supply side fails.
Description
Technical field
Load transfer plan scheme generation system when the present invention relates to a kind of 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, when providing a kind of power distribution network source-side fault, load transfer plan scheme generation system, can form load safe transfer scheme fast and accurately when power distribution network source-side fault.
The technical scheme realizing above-mentioned purpose is: load transfer plan scheme generation system during a kind of power distribution network source-side fault, comprise bus loss of pressure type identification module, the fault equivalence and stand internal loading transfer scheme generation module, Petri Nets module and load transfer plan solution integration module that are connected successively, described fault equivalence and station internal loading transfer scheme generation module are also connected with described load transfer plan solution integration module, wherein:
Described bus loss of pressure type identification module has been used for many bus loss of pressure between station and has decomposed, bus loss of pressure many between station are decomposed into several to shift bus loss of pressure without station internal loading and have station internal loading transfer bus loss of pressure, and this bus loss of pressure type identification module statistics is without station internal loading transfer bus loss of pressure quantity, there are the quantity of station internal loading transfer bus loss of pressure and corresponding load district to be transferred, and shift bus loss of pressure quantity without station internal loading, the quantity of station internal loading transfer bus loss of pressure and corresponding load district to be transferred is had to send to described fault equivalence and station internal loading transfer scheme generation module,
Described fault equivalence and station internal loading transfer scheme generation module recover problem and station internal loading branch problem there being station internal loading transfer bus loss of pressure to be decomposed into feeder fault, generate station internal loading transfer scheme, and problem of being recovered by feeder fault submits to described Petri Nets module, described fault equivalence and station internal loading transfer scheme generation module send to described load transfer plan solution integration module described station internal loading transfer scheme;
Described Petri Nets module for generating the service restoration scheme of equivalent fault feeder line, and sends to described load transfer plan solution integration module the service restoration scheme of described equivalent fault feeder line;
It is final load safe transfer scheme that described load transfer plan solution integration module is used for the service restoration solution integration of the station internal loading transfer scheme involved by bus loss of pressure and equivalent feeder fault feeder line.
Load transfer plan scheme generation system during above-mentioned a kind of power distribution network source-side fault, wherein, whether described bus loss of pressure type identification module timing detects has new bus loss of pressure to produce, when detecting that the new bus time with no pressure exceedes definite value, then be judged that there is new decompression bus, when there is new bus loss of pressure event, first judge whether the fault recovery that not yet processes and/or the process of bus loss of pressure load transfer plan; Then the unified bus loss of pressure considered de novo bus loss of pressure and processing, and the bus wiring type of transformer station, then judge whether to upgrade all bus loss of pressure types, thus large-area power-cuts be decomposed into several nothing station internal loading transfer bus loss of pressure and have station internal loading to shift bus loss of pressure; Subsequently, this bus loss of pressure type identification module statistics shifts bus loss of pressure quantity without station internal loading, has the quantity of internal loading transfer bus loss of pressure of standing and corresponding load district to be transferred, and shifting bus loss of pressure quantity without internal loading of standing, having the quantity of station internal loading transfer bus loss of pressure and corresponding load district to be transferred to send to described fault equivalence and internal loading transfer scheme generation module of standing.
Load transfer plan scheme generation system during above-mentioned a kind of power distribution network source-side fault, wherein, whether described fault equivalence and station internal loading transfer scheme generation module, have for timing inquiry and need nothing station to be processed internal loading transfer bus loss of pressure and have station internal loading to shift bus loss of pressure;
If exist without station internal loading transfer bus loss of pressure, 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, have so just become multiple feeder fault to recover problem the load transfer plan PROBLEM DECOMPOSITION without station internal loading transfer bus loss of pressure;
If have station internal loading transfer bus loss of pressure, be then broken down into station internal loading transfer and multiple feeder fault recovery problem;
Described fault equivalence and station internal loading transfer scheme generation module, generate station internal loading transfer scheme, and problem of being recovered by feeder fault submits to described Petri Nets module.
Load transfer plan scheme generation system during above-mentioned a kind of power distribution network source-side fault, wherein, whether described Petri Nets module is used for timing inquiry new feeder fault; If there is new feeder fault, first suspends existing Petri Nets, upgrade the electriferous state turning power supply source in each service restoration district; Then again add up and turn power supply source involved by each service restoration district;
Sharing if having the several substance faults turning power supply source is multiple faults, then multiple faults public is turned power supply source decoupling zero equivalence and become multiple and turn power supply source, thus realize multiple faults to change into multiple substance fault.
Load transfer plan scheme generation system during above-mentioned a kind of power distribution network source-side fault, wherein, the described public multiple decoupling method turning power supply source of power supply source decoupling zero equivalence one-tenth that turns multiple faults is: share and turn power supply source by reserve capacity vacancy proportional allocations to corresponding service restoration district, the rear all feeder faults of process are all substance faults; Each feeder line substance fault heuristically searching method generates service restoration scheme.
Load transfer plan scheme generation system during power distribution network source-side fault of the present invention, beneficial effect is compared with prior art: can form load safe transfer scheme fast and accurately when power distribution network source-side fault.
Accompanying drawing explanation
The structured flowchart of load transfer plan scheme generation system when Fig. 1 is power distribution network source-side fault of the present invention.
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, load transfer plan scheme generation system during a kind of power distribution network source-side fault, comprise bus loss of pressure type identification module 1, the fault equivalence and stand internal loading transfer scheme generation module 2, Petri Nets module 3 and load transfer plan solution integration module 4 that are connected successively, fault equivalence and station internal loading transfer scheme generation module 2 are also connected with load transfer plan solution integration module 4.
Bus loss of pressure type identification module 1 is decomposed for completing many bus loss of pressure between station, bus loss of pressure many between station are decomposed into several to shift bus loss of pressure without station internal loading and have station internal loading transfer bus loss of pressure, and this bus loss of pressure type identification module 1 statistics is without station internal loading transfer bus loss of pressure quantity, there are the quantity of station internal loading transfer bus loss of pressure and corresponding load district to be transferred, and shift bus loss of pressure quantity without station internal loading, the quantity of station internal loading transfer bus loss of pressure and corresponding load district to be transferred is had to send to described fault equivalence and station internal loading transfer scheme generation module 2.
Concrete, whether the timing of bus loss of pressure type identification module 1 detects has new bus loss of pressure to produce, when detecting that the new bus time with no pressure exceedes definite value, then be judged that there is new decompression bus, when there is new bus loss of pressure event, first judge whether the fault recovery that not yet processes and/or the process of bus loss of pressure load transfer plan; Then the unified bus loss of pressure considered de novo bus loss of pressure and processing, and the bus wiring type of transformer station, then judge whether to upgrade all bus loss of pressure types, thus large-area power-cuts be decomposed into several nothing station internal loading transfer bus loss of pressure and have station internal loading to shift bus loss of pressure; Subsequently, this bus loss of pressure type identification module 1 statistics shifts bus loss of pressure quantity without station internal loading, has the quantity of internal loading transfer bus loss of pressure of standing and corresponding load district to be transferred, and shifting bus loss of pressure quantity without internal loading of standing, having the quantity of station internal loading transfer bus loss of pressure and corresponding load district to be transferred to send to described fault equivalence and internal loading transfer scheme generation module 2 of standing.
Fault equivalence and station internal loading transfer scheme generation module 2 recover problem and station internal loading branch problem there being station internal loading transfer bus loss of pressure to be decomposed into feeder fault, generate station internal loading transfer scheme, and problem of being recovered by feeder fault submits to described Petri Nets module 3, fault equivalence and station internal loading transfer scheme generation module 2 send to load transfer plan solution integration module 4 station internal loading transfer scheme.
Specifically, whether fault equivalence and station internal loading transfer scheme generation module 2, have for timing inquiry and need nothing station to be processed internal loading transfer bus loss of pressure and have station internal loading to shift bus loss of pressure; If exist without station internal loading transfer bus loss of pressure, 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, have so just become multiple feeder fault to recover problem the load transfer plan PROBLEM DECOMPOSITION without station internal loading transfer bus loss of pressure; If have station internal loading transfer bus loss of pressure, be then broken down into station internal loading transfer and multiple feeder fault recovery problem; Fault equivalence and station internal loading transfer scheme generation module 2, generate station internal loading transfer scheme, and problem of being recovered by feeder fault submits to described Petri Nets module 3.
Petri Nets module 3 for generating the service restoration scheme of equivalent fault feeder line, and sends to load transfer plan solution integration module 4 the service restoration scheme of equivalent fault feeder line.Concrete, whether Petri Nets module 3 has new feeder fault for timing inquiry; If there is new feeder fault, first suspends existing Petri Nets, upgrade the electriferous state turning power supply source in each service restoration district; Then again add up and turn power supply source involved by each service restoration district; Sharing if having the several substance faults turning power supply source is multiple faults, then multiple faults public is turned power supply source decoupling zero equivalence and become multiple and turn power supply source, thus realize multiple faults to change into multiple substance fault.The public multiple decoupling method turning power supply source of power supply source decoupling zero equivalence one-tenth that turns of multiple faults be: share and turn power supply source by reserve capacity vacancy proportional allocations to corresponding service restoration district, the rear all feeder faults of process are all substance faults; Each feeder line substance fault heuristically searching method generates service restoration scheme.
Load transfer plan solution integration module 4 is for being final load safe transfer scheme the service restoration solution integration of the station internal loading transfer scheme involved by bus loss of pressure and equivalent feeder fault feeder line.
Load transfer plan scheme generation system during power distribution network source-side fault of the present invention, can form load safe transfer scheme fast and accurately when power distribution network source-side fault.
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 (5)
1. load transfer plan scheme generation system during a power distribution network source-side fault, it is characterized in that, comprise bus loss of pressure type identification module, the fault equivalence and stand internal loading transfer scheme generation module, Petri Nets module and load transfer plan solution integration module that are connected successively, described fault equivalence and station internal loading transfer scheme generation module are also connected with described load transfer plan solution integration module, wherein:
Described bus loss of pressure type identification module has been used for many bus loss of pressure between station and has decomposed, bus loss of pressure many between station are decomposed into several to shift bus loss of pressure without station internal loading and have station internal loading transfer bus loss of pressure, and this bus loss of pressure type identification module statistics is without station internal loading transfer bus loss of pressure quantity, there are the quantity of station internal loading transfer bus loss of pressure and corresponding load district to be transferred, and shift bus loss of pressure quantity without station internal loading, the quantity of station internal loading transfer bus loss of pressure and corresponding load district to be transferred is had to send to described fault equivalence and station internal loading transfer scheme generation module,
Described fault equivalence and station internal loading transfer scheme generation module recover problem and station internal loading branch problem there being station internal loading transfer bus loss of pressure to be decomposed into feeder fault, generate station internal loading transfer scheme, and problem of being recovered by feeder fault submits to described Petri Nets module, described fault equivalence and station internal loading transfer scheme generation module send to described load transfer plan solution integration module described station internal loading transfer scheme;
Described Petri Nets module for generating the service restoration scheme of equivalent fault feeder line, and sends to described load transfer plan solution integration module the service restoration scheme of described equivalent fault feeder line;
It is final load safe transfer scheme that described load transfer plan solution integration module is used for the service restoration solution integration of the station internal loading transfer scheme involved by bus loss of pressure and equivalent feeder fault feeder line.
2. load transfer plan scheme generation system during a kind of power distribution network source-side fault according to claim 1, it is characterized in that, whether described bus loss of pressure type identification module timing detects has new bus loss of pressure to produce, when detecting that the new bus time with no pressure exceedes definite value, then be judged that there is new decompression bus, when there is new bus loss of pressure event, first judge whether the fault recovery that not yet processes and/or the process of bus loss of pressure load transfer plan; Then the unified bus loss of pressure considered de novo bus loss of pressure and processing, and the bus wiring type of transformer station, then judge whether to upgrade all bus loss of pressure types, thus large-area power-cuts be decomposed into several nothing station internal loading transfer bus loss of pressure and have station internal loading to shift bus loss of pressure; Subsequently, this bus loss of pressure type identification module statistics shifts bus loss of pressure quantity without station internal loading, has the quantity of internal loading transfer bus loss of pressure of standing and corresponding load district to be transferred, and shifting bus loss of pressure quantity without internal loading of standing, having the quantity of station internal loading transfer bus loss of pressure and corresponding load district to be transferred to send to described fault equivalence and internal loading transfer scheme generation module of standing.
3. load transfer plan scheme generation system during a kind of power distribution network source-side fault according to claim 1, it is characterized in that, whether described fault equivalence and station internal loading transfer scheme generation module, have for timing inquiry and need nothing station to be processed internal loading transfer bus loss of pressure and have station internal loading to shift bus loss of pressure;
If exist without station internal loading transfer bus loss of pressure, 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, have so just become multiple feeder fault to recover problem the load transfer plan PROBLEM DECOMPOSITION without station internal loading transfer bus loss of pressure;
If have station internal loading transfer bus loss of pressure, be then broken down into station internal loading transfer and multiple feeder fault recovery problem;
Described fault equivalence and station internal loading transfer scheme generation module, generate station internal loading transfer scheme, and problem of being recovered by feeder fault submits to described Petri Nets module.
4. load transfer plan scheme generation system during a kind of power distribution network source-side fault according to claim 1, is characterized in that, whether described Petri Nets module is used for timing inquiry new feeder fault; If there is new feeder fault, first suspends existing Petri Nets, upgrade the electriferous state turning power supply source in each service restoration district; Then again add up and turn power supply source involved by each service restoration district;
Sharing if having the several substance faults turning power supply source is multiple faults, then multiple faults public is turned power supply source decoupling zero equivalence and become multiple and turn power supply source, thus realize multiple faults to change into multiple substance fault.
5. load transfer plan scheme generation system during a kind of power distribution network source-side fault according to claim 4, it is characterized in that, the described public multiple decoupling method turning power supply source of power supply source decoupling zero equivalence one-tenth that turns multiple faults is: share and turn power supply source by reserve capacity vacancy proportional allocations to corresponding service restoration district, the rear all feeder faults of process are all substance faults; Each feeder line substance fault heuristically searching method generates service restoration scheme.
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Cited By (6)
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| CN107104428A (en) * | 2017-03-07 | 2017-08-29 | 温州电力设计有限公司 | A kind of planing method for turning theory entirely based on full cut-off |
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| CN112561247A (en) * | 2020-11-27 | 2021-03-26 | 广东电网有限责任公司广州供电局 | Power grid load transfer method and device, computer equipment and storage medium |
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Application publication date: 20151118 |