CN104362615A - Non-fault segment power supply recovery method based on information platform - Google Patents
Non-fault segment power supply recovery method based on information platform Download PDFInfo
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- 238000010937 topological data analysis Methods 0.000 claims description 6
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Abstract
The invention relates to a non-fault segment power supply recovery method based on an information platform. The method includes 1, transfer path supply searching, namely searching for all reasonable transfer supply paths by the topology analysis method; 2, capacity transferring, namely combing with the results of topology analysis and power flow calculation, analyzing the transferring capacity of the transfer supply paths and transferring load capacity, and implementing transfer supply, and allocating, namely opening a gate for outage and closing a gate for power supply from the power supply of the farthest end of a maintenance switch. Allocated transfer supply or independent transfer supply is determined according to the load situation of power supplies, and the power supplies are prevented from loading excessively due to transfer supply; low-load power supplies are adopted preferably, load is reduced according to power guaranteeing and power consumption information when residual power supply is insufficient, and the reduced load number and the load number are guaranteed being a balanced and ideal combination.
Description
Technical field
The invention belongs to power system restoration power supply technique field, especially a kind of method of the restoring power supply in non-broken-down section based on informatization platform.
Background technology
Distribution network failure location and Fault Isolation basis on, need to realize restoring electricity to non-faulting region, namely restoring electricity of non-faulting section be under the operating condition allowed and electrical constraints, by network reconfiguration many as far as possible and rapidly by the load transfer plan of power supply interrupted district on normal feed line of power supply, simultaneously, on the strategy realizing restoring power supply in non-broken-down section, understand from power failure reliability, economy, turn and consider for aspects such as route choosing, abatement loads.
Restoring electricity to non-faulting region at present, mainly calculate based on 10kV electric pressure load metric data, data volume is very limited, result of calculation cannot be integrated low-voltage customer and to be correlated with power information, the image data (such as from power information acquisition system) outside distribution main website can not be utilized, therefore search out a kind of when non-faulting region is restored electricity reliable, economical, to turn for route choosing rationally, high efficiency that abatement loading effects is minimum, practical approach seem very important.
Summary of the invention
The object of the invention is for the deficiencies in the prior art, and propose a kind of method of the restoring power supply in non-broken-down section based on informatization platform.
The present invention solves its technical problem and takes following technical scheme to realize:
Based on a method for the restoring power supply in non-broken-down section of informatization platform, comprise step as follows:
(1) turn for route searching: adopt topological analysis mode, search obtains all rational turn and supplies path;
(2) turn for capacity and sharing: in conjunction with the result of topological analysis and Load flow calculation, supply load capacity and turn to analyze for capacity for turning of path to turning, then implement to turn to supply, share when turning confession is from the power supply of distance inspection switch farthest, first separating brake has a power failure power supply of closing a floodgate again, and sharing the concrete grammar turning confession is:
1. the load sum first turned as required for recovering compares with all power supply residual capacities that can be used for turning confession, if there is residual capacity to be greater than the power supply turned for load number, then this power supply independently can turn power supply source exactly;
2. can independently turn power supply source to sort from big to small according to residual capacity, and finally select one of them as turning solution by user, and operation performs; If there is no independently can turn power supply source, then need to carry out sharing turning confession, share the processing method turning confession and comprise:
A, from the power supply that residual capacity is maximum, can meet the multiple power supplys turning confession after selective stacking;
B, according to residual capacity, calculates the amortization ratio of above-mentioned determined multiple power supply;
C, specifically share, in the multiple power supplys determined, share from the interconnection switch that distance inspection switch is nearest, if apart from equal, just select capacity maximum, the method of sharing is, from interconnection switch first to inspection switch search load, and then to the search of residue load, share quantity until reach;
When turn be with certain load to exceed should to share load number time, judge whether this load can cause this circuit overload, if overload, then do not turn and be with this load; As oneself nonoverload, then judge whether to cause remaining power supply to transship, as remaining power supply can be caused to transship, then turn and be with this load, as nonoverload, then by should turn band number round up determine whether turn band;
D, if the power supply chosen is after sharing, still can not bear all loads, then use more power supply to share;
E, load shedding operates, and turns for when requiring, will carry out load shedding operation after sharing to the power supply point feeder line of overload if all power supplys all use still can not meet.
And, the method of the restoring power supply in non-broken-down section based on informatization platform according to claim 1, it is characterized in that: in described step (2), the C 2. walked walks the computational methods of middle distance and is: search for from inspection switch to each power supply point interconnection switch, and each node in two switch room directapaths is counted, often find a power supply, then the node of process just adds 1, after having searched for, the node that all countings are greater than 1 is just called the main line of inspection switch, then the 1st node finding each power supply point to be connected with main line, switch between this node and inspection switch is fewer, then claim this power supply and inspection switch nearer, otherwise it is far away.
And in described step (2) in the E step 2. walked, the concrete mode of load shedding operation is: each power supply point cuts down respective load, and reduction is from priority is minimum, if still can not meet the demands after cutting down, then user is pointed out to intervene.
And, when described abatement load, the load that can cut down to be combined, under determining to meet situation, cut out least load.
Advantage of the present invention and good effect are:
The present invention can to turning power supply source total capacity and residual capacity is analyzed, turn for time determine to share according to the loading condition of each power supply and to turn for or independent turning supplies, load is too high because turning for prevent power supply, the power supply that the present invention simultaneously can preferentially select load lower.According to guarantor's electricity, the power information reduction plans of each load, can ensure that the load number of units of abatement becomes more balanced a, desirable combination with load number form when power supply residue is not enough.The sequence of switching operations that the present invention provides in addition can reduce the temporary interruption time of load as far as possible.
Embodiment
Be further described the invention process below, following examples are descriptive, are not determinate, can not limit protection scope of the present invention with this.
Based on a method for the restoring power supply in non-broken-down section of informatization platform, comprise step as follows:
(1) turn for route searching: adopt topological analysis mode, search obtains all rational turn and supplies path;
(2) turn for capacity and sharing: in conjunction with the result of topological analysis and Load flow calculation, analyze for load capacity and the turned confession capacity turned for path turning, then implement to turn to supply, share when turning confession is from the power supply of distance inspection switch farthest, first separating brake has a power failure power supply of closing a floodgate again, and sharing the concrete grammar turning confession is:
1. the load sum first turned as required for recovering compares with all power supply residual capacities that can be used for turning confession, if there is residual capacity to be greater than the power supply turned for load number, then this power supply independently can turn power supply source exactly;
2. can independently turn power supply source to sort from big to small according to residual capacity, and finally select one of them as turning solution by user, and operation performs; If there is no independently can turn power supply source, then need to carry out sharing turning confession, share the processing method turning confession and comprise:
A, from the power supply that residual capacity is maximum, can meet the multiple power supplys turning confession after selective stacking;
B, according to residual capacity, calculates the amortization ratio of above-mentioned determined multiple power supply;
C, specifically share, in the multiple power supplys determined, share (if apart from equal from the interconnection switch that distance inspection switch is nearest, just selection capacity is maximum), the method for sharing is, from interconnection switch first to inspection switch search load, and then to the search of residue load, share quantity until reach;
When turn be with certain load to exceed should to share load number time, judge whether this load can cause this circuit overload, if overload does not turn be with this load; As oneself nonoverload, then judge whether to cause remaining power supply to transship, as remaining power supply can be caused to transship, then turn and be with this load, as nonoverload, then by should turn band number round up determine whether turn band;
Wherein, the computational methods of distance are searched for from inspection switch to each power supply point interconnection switch, and each node in two switch room directapaths is counted, often find a power supply, then the node of process just adds 1, after having searched for, the node that all countings are greater than 1 is just called the main line of inspection switch, the 1st node then finding each power supply point to be connected with main line, and the switch between this node and inspection switch is fewer, then claim this power supply and inspection switch nearer, otherwise far away;
D, if the power supply chosen is after sharing, still can not bear all loads, then use more power supply to share;
E, load shedding operates, and turns for when requiring, will carry out load shedding operation after sharing to the power supply point feeder line of overload if all power supplys all use still can not meet,
Wherein, the concrete mode of load shedding operation is that each power supply point cuts down respective load, and reduction is from priority is minimum, but does not cut down for the electric client that lists, protects, if still can not meet the demands after cutting down, then points out user to intervene.
When cutting down load, the load that can cut down to be combined, under determining to meet situation, cutting out least load.Such as will cut down 20kVA, can cut down load is 3,5.5,9,10,15, and best of breed is 5.5+15=20.5>20.
Claims (4)
1., based on a method for the restoring power supply in non-broken-down section of informatization platform, it is characterized in that comprising step as follows:
(1) turn for route searching: adopt topological analysis mode, search obtains all rational turn and supplies path;
(2) turn for capacity and sharing: in conjunction with the result of topological analysis and Load flow calculation, supply load capacity and turn to analyze for capacity for turning of path to turning, then implement to turn to supply, share when turning confession is from the power supply of distance inspection switch farthest, first separating brake has a power failure power supply of closing a floodgate again, and sharing the concrete grammar turning confession is:
1. the load sum first turned as required for recovering compares with all power supply residual capacities that can be used for turning confession, if there is residual capacity to be greater than the power supply turned for load number, then this power supply independently can turn power supply source exactly;
2. can independently turn power supply source to sort from big to small according to residual capacity, and finally select one of them as turning solution by user, and operation performs; If there is no independently can turn power supply source, then need to carry out sharing turning confession, share the processing method turning confession and comprise:
A, from the power supply that residual capacity is maximum, can meet the multiple power supplys turning confession after selective stacking;
B, according to residual capacity, calculates the amortization ratio of above-mentioned determined multiple power supply;
C, specifically share, in the multiple power supplys determined, share from the interconnection switch that distance inspection switch is nearest, if apart from equal, just select capacity maximum, the method of sharing is, from interconnection switch first to inspection switch search load, and then to the search of residue load, share quantity until reach;
When turn be with certain load to exceed should to share load number time, judge whether this load can cause this circuit overload, if overload, then do not turn and be with this load; As oneself nonoverload, then judge whether to cause remaining power supply to transship, as remaining power supply can be caused to transship, then turn and be with this load, as nonoverload, then by should turn band number round up determine whether turn band;
D, if the power supply chosen is after sharing, still can not bear all loads, then use more power supply to share;
E, load shedding operates, and turns for when requiring, will carry out load shedding operation after sharing to the power supply point feeder line of overload if all power supplys all use still can not meet.
2. the method for the restoring power supply in non-broken-down section based on informatization platform according to claim 1, it is characterized in that: in described step (2), the C 2. walked walks the computational methods of middle distance and is: search for from inspection switch to each power supply point interconnection switch, and each node in two switch room directapaths is counted, often find a power supply, then the node of process just adds 1, after having searched for, the node that all countings are greater than 1 is just called the main line of inspection switch, then the 1st node finding each power supply point to be connected with main line, switch between this node and inspection switch is fewer, then claim this power supply and inspection switch nearer, otherwise it is far away.
3. the method for the restoring power supply in non-broken-down section based on informatization platform according to claim 1, it is characterized in that: in described step (2) in the E step 2. walked, the concrete mode of load shedding operation is: each power supply point cuts down respective load, reduction is from priority is minimum, if still can not meet the demands after cutting down, then user is pointed out to intervene.
4. the method for the restoring power supply in non-broken-down section based on informatization platform according to claim 1 or 3, is characterized in that: when described abatement load, will combine the load that can cut down, and cuts out least load under determining to meet situation.
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| CN106383924A (en) * | 2016-08-27 | 2017-02-08 | 国网山东省电力公司蓬莱市供电公司 | Line quadrature graph drafting method realizing regulation and control scope full coverage |
| CN111934316A (en) * | 2020-08-10 | 2020-11-13 | 国网安徽省电力有限公司黄山供电公司 | Method for selecting substation recovery path after power grid tripping |
| CN112134353A (en) * | 2020-09-01 | 2020-12-25 | 珠海欧力配网自动化股份有限公司 | Distributed power distribution method based on GOOSE and power distribution automation terminal |
| CN113013871A (en) * | 2021-01-25 | 2021-06-22 | 浙江华云信息科技有限公司 | Load transfer method for power distribution network equipment during fault and maintenance |
| CN113507116A (en) * | 2021-07-08 | 2021-10-15 | 国网河北省电力有限公司电力科学研究院 | Power distribution network load transfer method, device, equipment and storage medium |
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| CN103532133A (en) * | 2013-09-29 | 2014-01-22 | 天津理工大学 | Load transfer system and method used in case of failure of 35kV power distribution network on basis of MAS (Multi-Agents) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106383924A (en) * | 2016-08-27 | 2017-02-08 | 国网山东省电力公司蓬莱市供电公司 | Line quadrature graph drafting method realizing regulation and control scope full coverage |
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| CN113013871A (en) * | 2021-01-25 | 2021-06-22 | 浙江华云信息科技有限公司 | Load transfer method for power distribution network equipment during fault and maintenance |
| CN113507116A (en) * | 2021-07-08 | 2021-10-15 | 国网河北省电力有限公司电力科学研究院 | Power distribution network load transfer method, device, equipment and storage medium |
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Application publication date: 20150218 |