CN103473712A - Method for establishing distribution network failure effect analysis sheet - Google Patents
Method for establishing distribution network failure effect analysis sheet Download PDFInfo
- Publication number
- CN103473712A CN103473712A CN2013103846385A CN201310384638A CN103473712A CN 103473712 A CN103473712 A CN 103473712A CN 2013103846385 A CN2013103846385 A CN 2013103846385A CN 201310384638 A CN201310384638 A CN 201310384638A CN 103473712 A CN103473712 A CN 103473712A
- Authority
- CN
- China
- Prior art keywords
- zone
- feeder line
- district
- coding
- distribution network
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The invention relates to a method for establishing a distribution network failure effect analysis sheet. The method is technically characterized by comprising the following steps of 1, analyzing the failure effect of a non-switching element according to distribution network codes; 2, analyzing the failure effect of a switching element according to the distribution network codes; 3, summarizing the power outage conditions of various load points of a distribution network after all elements are faulty, and uniformly storing to form the distribution network failure effect analysis sheet. The method disclosed by the invention can automatically generate the failure mode effect analysis sheet of a system on the basis of a distribution network coding technology, is simple, convenient, fast and efficient, can realize the fast reliability assessment on an electric system after being applied to an electric system reliability assessment method and is used for instructing the construction and maintenance of the electric system.
Description
Technical field
The invention belongs to the Model in Reliability Evaluation of Power Systems technical field, especially a kind of method for building up of distribution network failure impact analysis table.
Background technology
Model in Reliability Evaluation of Power Systems refers to the static state of electric system facility or grid structure or dynamic property, or whether the effect of various improvement in performance measures meet the series work that the reliability criterion of regulation is analyzed, estimated and assert, comprise the content of following four aspects: (1) determines the element outage model; (2) selective system state and their probability of calculating; (3) malfunction is analyzed, and assessed its consequence; (4) computed reliability index.
System failure state estimation in Model in Reliability Evaluation of Power Systems (above-mentioned the 3rd), mainly refer to and according to certain fault criteria, the malfunction of system analyzed.In evaluating reliability of distribution network, adopt Failure Mode Effective Analysis method (Failure Mode and Effect Analysis, FMEA) be to carry out one of effective method of above-mentioned work, its according to given reliability criterion and criterion to the analysis of testing of the state of system, find out the fault mode set of system, setting up failure effect analysis (FEA) affects table, determines the impact of element fault on system, tries to achieve the reliability index of system.The basic ideas of the method are: at first system is carried out the selection of forecast accident, determine the load point failure event, and each anticipation event is carried out to tidal current analysis and system is remedied, form the failure effect analysis (FEA) table of forecast accident; Again according to extracting the consequence of corresponding failure in the fault collection table of load point, for the reliability row index of calculated load point and system.
For the comparatively simple power distribution network of topological structure, the failure effect analysis (FEA) table can adopt the mode of artificial foundation.And for number of elements more Complicated Distribution Network, the workload of manually setting up the failure effect analysis (FEA) table is huge, needs computer to complete.By certain search logic and technology, according to network topology and service condition constraint, the consequence that automatic discrimination breaks down, set up the failure effect analysis (FEA) table.Comparatively ripe search technique comprises Minimal Cut Set, minimal path method, fault traversal, fault pervasion method etc. at present.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of method for building up of reasonable in design, reliability is high and method is easy distribution network failure impact analysis table is provided.
The present invention solves existing technical matters and takes following technical scheme to realize:
A kind of method for building up of distribution network failure impact analysis table comprises the following steps:
Step 1: the fault effects of non-on-off element is analyzed according to the power distribution network coding;
Step 2: the fault effects of on-off element is analyzed according to the power distribution network coding;
Step 3: gather the power-off condition of each load point of power distribution network after all element faults, and by its unified formation distribution network failure impact analysis table of depositing.
And described power distribution network coding is to use one-dimension array to mean the node in power distribution network, this array consists of flag and information bit.
And described flag comprises feeder clearance sequence number, node place level number; Described information comprises when layer annexation, when layer branch road sequence number, when layer level number for position.
And the concrete processing procedure of described step 1 is:
(1) extract the coding m of fault element;
(2) find out the feeder line district set A corresponding with the identical coding of feeder clearance sequence number of the m that encodes, the sequence number that wherein a is the feeder line district, m
acoding for feeder line district a;
(3) travel through each the feeder line district a in feeder line district set A;
(4) if the coding m of feeder line district a
aidentical with m, judge that feeder line district a belongs to fault zone, and return and (3) judge next feeder line district, otherwise carry out next step;
(5) if m
ainherit the information of m fully and only encode than the many one decks of m, and this layer had more is encoded to fuse and, without disconnector, judges that feeder line district a belongs to fault zone, and return (3), otherwise carry out next step;
(6) if m
ahigher and inherit the information of m or m fully than the m number of plies
aidentical with m other coding except last position coding, illustrate that feeder line district a is positioned at the downstream of fault zone, judge that it belongs to backward zone, and return (3), otherwise carry out next step;
(7) find out the number of plies k at the nearest upstream circuit breaker of distance fault element or fuse place, i.e. m (3 * j)=2 or 3, k=max (j), if meet m
a(3:k * 3+1)=m (3:k * 3+1), illustrate that feeder line district a is positioned at the upstream of fault zone, belongs to forward region, and returns (3), otherwise carry out next step;
(8) feeder line district a belongs to without range of influence, returns (3) until the interior all feeder line districts of set A traversal is complete;
(9) last, determine the affiliated area of element and load point according to the classification results in each feeder line district.
And, the criterion method of the affiliated area of described definite element and load point: be positioned at certain feeder line district, identical with the affiliated area in the affiliated area of the identical element of its coding and load point and this feeder line district.
6, a kind of method for building up of distribution network failure impact analysis table according to claim 4, it is characterized in that: the concrete processing procedure of described step 2 is:
Search procedure: the sequence number of supposing two the feeder line districts connected by the breakdown switch element is respectively i and j, extracts its coding m
iand m
j, use non-on-off element failure effect analysis (FEA) method, search respectively the classification situation in all feeder lines district after feeder line district i and j fault; After searching, the set in the feeder line district that A, B during by feeder line district i fault, C, D tetra-classes zones are included is designated as respectively A
i, B
i, C
i, D
i, be designated as respectively set A during feeder line district j fault
j, B
j, C
j, D
j.
Combined process: for the category-A zone after the on-off element fault, its included feeder line district is set A
iwith set A
junion, i.e. A
ij=A
i∪ A
j; For D class zone, D
ij=D
i∩ D
j; For the category-B zone,
wherein
representative is in set B
iin remove set A
j; For C class zone, be A, B, zone in addition, D class zone.
And described step 3 to the method that under each load point, fault zone is analyzed respectively is:
The power off time of the load point in described category-A zone, C class zone, D class zone can directly be determined: in the category-A zone, the power off time of all load point is fault correction time; In C class zone, the power off time of all load point is the fault isolation time; In D class zone, the power off time of all load point is 0;
In described category-B zone, definite method of the power off time of all load point is: at first the feeder line district in this zone is carried out to connectedness and divide, then according to being communicated with in district i, whether having the contact node and determined with this.
And in described category-B zone, definite method of the power off time of all load point comprises the following steps:
(1) read the coding in all feeder lines district in the category-B zone;
(2) the coding m of search number of plies minimum;
(3) all codings of coding m information are inherited in search fully, and these codings and the corresponding feeder line zoning of coding m are entered to be communicated with district i, if without any the information of the fully-integrated coding of coding m, the corresponding feeder line zoning of m of encoding enters to be communicated with district i;
(4) are all code search complete? if not return to step (2) and continue search, until all code search complete.
(5) search and be communicated with in district i whether have the contact node, if search to be communicated with in district i, have the contact node, illustrate that being communicated with district i belongs to B1 class zone, the power off time of its inner all load point is that fault isolation time and load turn the band time; If there is not the contact node, explanation is communicated with district i and belongs to B2 class zone, and the power off time of its inner all load point is fault correction time.
Advantage of the present invention and good effect are:
The present invention adopts the power distribution network coding techniques that the topological structure of whole power distribution network is offered to computing machine and is identified, by non-on-off element being carried out to failure effect analysis (FEA) and on-off element carries out failure effect analysis (FEA), the power-off condition unification of each load point after fault is deposited, thereby formed the Failure Mode Effective Analysis table of system.Its method is easy, rapidly and efficiently, by in its power application system reliability estimation method, can calculate the reliability index of whole distribution system, thereby realize electric system is carried out to reliability assessment, be used in reference to the construction and maintenance of conduction power system, guarantee the normal operation of system.
The accompanying drawing explanation
Fig. 1 is the power distribution network coding structure schematic diagram that the present invention adopts;
Fig. 2 is distribution feeder Division schematic diagram;
Fig. 3 is the process flow diagram of non-on-off element failure effect analysis (FEA);
Fig. 4 carries out the connective process flow diagram of dividing to the feeder line district in the category-B zone;
Fig. 5 is the process flow diagram of evaluating reliability of distribution network.
Embodiment
Below in conjunction with accompanying drawing, the embodiment of the present invention is further described.
A kind of method for building up of distribution network failure impact analysis table adopts the power distribution network coding techniques, and the mode by coding means the nodal information of power distribution network, and then the topological structure of whole power distribution network is offered to computing machine is identified.
As shown in Figure 1, node in power distribution network is all used an one-dimension array to mean, this one-dimension array by 2 flags (feeder clearance sequence number, node place level number) and n group information bit (such as: when layer annexation, when layer branch road sequence number, when layer level number etc.) form, each comprises a numeral, the number of plies that wherein n is the switching node place, the length of coding array is l=3 * n+2.
After the coding of having determined node, the coding of path just can determine thereupon, and its coding rule is:
(1) coding of all communication paths in same feeder line district is all identical with the coding of this feeder line district start node.
(2) for switch ways, two feeder line districts that the fault of consideration on-off element is equivalent to be connected by it break down simultaneously, therefore adopt a two-dimensional array to mean its coding, its coding rule is: each dimension of switch ways coding is respectively to the coding of the feeder line district start node that should switch ways connects.
Wherein, the feeder line district is the element set with common entry switch element, and its consequence that is subject to fault effects is identical, can be used as the least unit of failure effect analysis (FEA), as shown in Figure 2.
When in system, certain element breaks down, according to the characteristics of power distribution network operation, power distribution network can be divided into following several zone:
(1) fault zone (category-A zone): faulty section is the fault element region, the repair time that the power off time of this zone internal loading is fault element.
(2) backward zone (category-B zone): backward zone is the zone that is positioned at the downstream, fault zone, according to the contact whether existed with other feeder line, backward zone can be divided into again B1 class zone and B2 class zone, and wherein B1 class region memory is in contact, and there is not contact in the B2 class in zone.The power off time of B1 class zone internal loading is that fault isolation time and load turn the band time; The power off time of B2 class zone internal loading is fault correction time.
(3) forward region (C class zone): forward region, for being positioned at the upstream, fault zone, can form the zone be communicated with primary power (bus) after fault isolation, and the power off time of this zone internal loading is the fault isolation time.
(4) without range of influence (D class zone): without range of influence, be to remove A, B, zone in addition, C class zone, the load in this zone is not subject to the impact of fault element, does not therefore have a power failure.
A kind of method for building up of distribution network failure impact analysis table comprises the following steps:
Step 1: the fault effects of non-on-off element is analyzed according to the power distribution network coding.
As shown in Figure 3, when certain non-on-off element breaks down in distribution system, adopt above-mentioned power distribution network coding, can realize easily each feeder line district and the element of inside thereof and searching of load point affiliated area, the flow process of searching is:
Step 1: the coding m that extracts fault element;
Step 2: find out the 1st the feeder line district set A that (feeder clearance sequence number) identical coding is corresponding with m, the sequence number that wherein a is the feeder line district, m
acoding for feeder line district a;
Step 3: each the feeder line district a in the traversal set A;
Step 4: if the coding m of feeder line district a
aidentical with m, judge that feeder line district a belongs to fault zone, and return to next feeder line district of step 3 judgement, otherwise carry out next step;
Step 5: if m
ainherit the information of m fully and only than the many one decks of m coding, and the 1st of this layer of coding had more be " 1 " (without disconnector) for " 3 " (fuse), the 3rd, judge that feeder line district a belongs to fault zone, and return to step 3, otherwise carry out next step;
Step 6: if m
ahigher and inherit the information of m or m fully than the m number of plies
aidentical with m other coding except last position coding, illustrate that feeder line district a is positioned at the downstream of fault zone, judge that it belongs to backward zone, and return to step 3, otherwise carry out next step;
Step 7: find out the number of plies k at the nearest upstream circuit breaker of distance fault element or fuse place, i.e. m (3 * j)=2 or 3, k=max (j), if meet m
a(3:k * 3+1)=m (3:k * 3+1), illustrate that feeder line district a is positioned at the upstream of fault zone, belongs to forward region, and returns to step 3, otherwise carry out next step;
Step 8: feeder line district a belongs to without range of influence, returns to step 3 until the interior all feeder line districts of set A traversal is complete.
Step 9: last, according to the classification results in each feeder line district, determine the affiliated area of element and load point, its criterion is: be positioned at certain feeder line district, identical with the affiliated area in the affiliated area of the identical element of its coding and load point and this feeder line district.
It should be noted that: above-mentioned, search flow process, the judgement of each step is all in the situation that previous step has been vetoed carries out, so criterion is a process of constantly relaxing, to such an extent as to there is no criterion in step 8, therefore, in above-mentioned flow process, fault zone, backward zone, forward region and the sequencing judged without range of influence can not be put upside down.
Step 2: the fault effects of on-off element is analyzed according to the power distribution network coding.
As previously mentioned, the coding of switch ways comprises two dimensions, and two feeder line districts that the fault of on-off element is equivalent to be connected by it break down simultaneously.Therefore, when in distribution system, certain on-off element breaks down, the thinking of searching employing " first search respectively, then carry out comprehensive " of each feeder line district affiliated area, concrete grammar is as follows:
Search procedure: the sequence number of supposing two the feeder line districts connected by the breakdown switch element is respectively i and j, extracts its coding m
iand m
j, apply above-mentioned non-on-off element failure effect analysis (FEA) method, search respectively the classification situation in all feeder lines district after feeder line district i and j fault.After searching, the set in the feeder line district that A, B during by feeder line district i fault, C, D tetra-classes zones are included is designated as respectively A
i, B
i, C
i, D
i; Be designated as respectively set A during feeder line district j fault
j, B
j, C
j, D
j.
Combined process: for the category-A zone after the on-off element fault, its included feeder line district is set A
iwith set A
junion, i.e. A
ij=A
i∪ A
j.For D class zone, D
ij=D
i∩ D
j.For the category-B zone,
wherein
representative is in set B
iin remove set A
j.C class zone is the zone beyond A, B, D class zone.
Step 3: gather the power-off condition of each load point of power distribution network after all element faults, and by its unified formation distribution network failure impact analysis table of depositing.
After being classified in fault zone and finding out included feeder line district, every class fault zone, in system, each load point just can be analyzed respectively according to the difference of fault zone under it by the situation of fault effects.Wherein, the power off time of the load point in A, C, D class zone can directly be determined: in the category-A zone, the power off time of all load point is fault correction time; In C class zone, the power off time of all load point is the fault isolation time; In D class zone, the power off time of all load point is 0.For the category-B zone, also to further judge whether there being the contact node in this zone:
At first, according to the coding in feeder line district, the feeder line district in the category-B zone found out is carried out to connectedness and divide.
Feeder line district in the category-B zone is carried out to connective method of dividing as shown in Figure 4, comprising:
(1) read the coding in all feeder lines district in the category-B zone
(2) the coding m of search number of plies minimum;
(3) all codings of coding m information are inherited in search fully, and these codings and the corresponding feeder line zoning of coding m are entered to be communicated with district i, if without any the information of the fully-integrated coding of coding m, the corresponding feeder line zoning of m of encoding enters to be communicated with district i;
(4) are all code search complete? if not return to (2) and continue search, until all code search complete.
Secondly, search and be communicated with in district i whether have the contact node.If there is the contact node, illustrate that being communicated with district i belongs to B1 class zone, the power off time of its inner all load point is that fault isolation time and load turn the band time; If there is not the contact node, explanation is communicated with district i and belongs to B2 class zone, and the power off time of its inner all load point is fault correction time.
For intrasystem each element, apply respectively above-mentioned non-on-off element failure analysis methods and on-off element failure analysis methods, try to achieve the power-off condition of each load point after its fault, and by its unified depositing, thereby form distribution network failure impact analysis table (FMEA table).
Below take system shown in Figure 2 as example, the coding result of power distribution network and the system failure impact analysis table of foundation be described:
(1) all nodes and path in system are encoded, the coding result of power distribution network is as shown in table 1.
The coding of table 1 power distribution network
(2) set up the failure effect analysis (FEA) table of system according to said method, this failure effect analysis (FEA) table is as shown in table 2.
The failure effect analysis (FEA) table of table 2 system
Annotate: the TTR-fault correction time; The ST-fault isolation time; SRT-fault isolation and load turn the band time.
The failure effect analysis (FEA) table that the present invention sets up can be applicable in the Model in Reliability Evaluation of Power Systems method.In the treatment scheme of Model in Reliability Evaluation of Power Systems method as shown in Figure 5, its core content is exactly the failure effect analysis (FEA) table of having set up by repeatedly reading, can calculate the reliability index of whole distribution system, thereby realize electric system is carried out to the fast and reliable assessment, be used in reference to the construction and maintenance of conduction power system.
It is emphasized that; embodiment of the present invention is illustrative; rather than determinate; therefore the present invention includes and be not limited to the embodiment described in embodiment; every other embodiments that drawn by those skilled in the art's technical scheme according to the present invention, belong to the scope of protection of the invention equally.
Claims (8)
1. the method for building up of a distribution network failure impact analysis table is characterized in that: comprise the following steps:
Step 1: the fault effects of non-on-off element is analyzed according to the power distribution network coding;
Step 2: the fault effects of on-off element is analyzed according to the power distribution network coding;
Step 3: gather the power-off condition of each load point of power distribution network after all element faults, and by its unified formation distribution network failure impact analysis table of depositing.
2. a kind of method for building up of distribution network failure impact analysis table according to claim 1, it is characterized in that: described power distribution network coding is to use one-dimension array to mean the node in power distribution network, and this array consists of flag and information bit.
3. a kind of method for building up of distribution network failure impact analysis table according to claim 2, it is characterized in that: described flag comprises feeder clearance sequence number, node place level number; Described information comprises when layer annexation, when layer branch road sequence number, when layer level number for position.
4. according to the method for building up of the described a kind of distribution network failure impact analysis table of claims 1 to 3 any one, it is characterized in that: the concrete processing procedure of described step 1 is:
(1) extract the coding m of fault element;
(2) find out the feeder line district set A corresponding with the identical coding of feeder clearance sequence number of the m that encodes, the sequence number that wherein a is the feeder line district, m
acoding for feeder line district a;
(3) travel through each the feeder line district a in feeder line district set A;
(4) if the coding m of feeder line district a
aidentical with m, judge that feeder line district a belongs to fault zone, and return and (3) judge next feeder line district, otherwise carry out next step;
(5) if m
ainherit the information of m fully and only encode than the many one decks of m, and this layer had more is encoded to fuse and, without disconnector, judges that feeder line district a belongs to fault zone, and return (3), otherwise carry out next step;
(6) if m
ahigher and inherit the information of m or m fully than the m number of plies
aidentical with m other coding except last position coding, illustrate that feeder line district a is positioned at the downstream of fault zone, judge that it belongs to backward zone, and return (3), otherwise carry out next step;
(7) find out the number of plies k at the nearest upstream circuit breaker of distance fault element or fuse place, i.e. m (3 * j)=2 or 3, k=max (j), if meet m
a(3:k * 3+1)=m (3:k * 3+1), illustrate that feeder line district a is positioned at the upstream of fault zone, belongs to forward region, and returns (3), otherwise carry out next step;
(8) feeder line district a belongs to without range of influence, returns (3) until the interior all feeder line districts of set A traversal is complete;
(9) last, determine the affiliated area of element and load point according to the classification results in each feeder line district.
5. a kind of method for building up of distribution network failure impact analysis table according to claim 4 is characterized in that: the criterion method of the affiliated area of described definite element and load point: be positioned at certain feeder line district, identical with the affiliated area in the affiliated area of the identical element of its coding and load point and this feeder line district.
6. a kind of method for building up of distribution network failure impact analysis table according to claim 4, it is characterized in that: the concrete processing procedure of described step 2 is:
Search procedure: the sequence number of supposing two the feeder line districts connected by the breakdown switch element is respectively i and j, extracts its coding m
iand m
j, use non-on-off element failure effect analysis (FEA) method, search respectively the classification situation in all feeder lines district after feeder line district i and j fault; After searching, the set in the feeder line district that A, B during by feeder line district i fault, C, D tetra-classes zones are included is designated as respectively A
i, B
i, C
i, D
i, be designated as respectively set A during feeder line district j fault
j, B
j, C
j, D
j.
Combined process: for the category-A zone after the on-off element fault, its included feeder line district is set A
iwith set A
junion, i.e. A
ij=A
i∪ A
j; For D class zone, D
ij=D
i∩ D
j; For the category-B zone,
wherein
representative is in set B
iin remove set A
j; For C class zone, be A, B, zone in addition, D class zone.
7. a kind of method for building up of distribution network failure impact analysis table according to claim 4, it is characterized in that: described step 3 to the method that under each load point, fault zone is analyzed respectively is:
The power off time of the load point in described category-A zone, C class zone, D class zone can directly be determined: in the category-A zone, the power off time of all load point is fault correction time; In C class zone, the power off time of all load point is the fault isolation time; In D class zone, the power off time of all load point is 0;
In described category-B zone, definite method of the power off time of all load point is: at first the feeder line district in this zone is carried out to connectedness and divide, then according to being communicated with in district i, whether having the contact node and determined with this.
8. a kind of method for building up of distribution network failure impact analysis table according to claim 7, it is characterized in that: in described category-B zone, definite method of the power off time of all load point comprises the following steps:
(1) read the coding in all feeder lines district in the category-B zone;
(2) the coding m of search number of plies minimum;
(3) all codings of coding m information are inherited in search fully, and these codings and the corresponding feeder line zoning of coding m are entered to be communicated with district i, if without any the information of the fully-integrated coding of coding m, the corresponding feeder line zoning of m of encoding enters to be communicated with district i;
(4) are all code search complete? if not return to step (2) and continue search, until all code search complete.
(5) search and be communicated with in district i whether have the contact node, if search to be communicated with in district i, have the contact node, illustrate that being communicated with district i belongs to B1 class zone, the power off time of its inner all load point is that fault isolation time and load turn the band time; If there is not the contact node, explanation is communicated with district i and belongs to B2 class zone, and the power off time of its inner all load point is fault correction time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103846385A CN103473712A (en) | 2013-08-29 | 2013-08-29 | Method for establishing distribution network failure effect analysis sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103846385A CN103473712A (en) | 2013-08-29 | 2013-08-29 | Method for establishing distribution network failure effect analysis sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103473712A true CN103473712A (en) | 2013-12-25 |
Family
ID=49798549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013103846385A Pending CN103473712A (en) | 2013-08-29 | 2013-08-29 | Method for establishing distribution network failure effect analysis sheet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103473712A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103824234A (en) * | 2014-03-18 | 2014-05-28 | 国家电网公司 | Blocking and hierarchical structure based power distribution system reliability evaluation method |
| CN104200051A (en) * | 2014-09-22 | 2014-12-10 | 哈尔滨工程大学 | Fault condition assessment and coping strategy simulation method for marine electric power system |
| CN104392117A (en) * | 2014-11-06 | 2015-03-04 | 国家电网公司 | Method for analyzing influence of distribution terminal on reliability of distribution system |
| CN110276532A (en) * | 2019-06-04 | 2019-09-24 | 国网江苏省电力有限公司泰州供电分公司 | A kind of distribution network reliability calculation method of the research based on load piecemeal |
| CN111579924A (en) * | 2020-05-19 | 2020-08-25 | 广东电网有限责任公司 | Fault position determination method, equipment and storage medium |
| CN114422338A (en) * | 2022-03-29 | 2022-04-29 | 浙江网商银行股份有限公司 | Fault influence analysis method and device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101188359A (en) * | 2007-11-16 | 2008-05-28 | 湖南大学 | Distribution network reliability evaluation method based on failure transfer feature of components |
| CN102097808A (en) * | 2011-01-31 | 2011-06-15 | 天津大学 | Method for estimating reliability of electric distribution system containing distributive wind power, photovoltaic and energy storage devices |
| CN102208809A (en) * | 2011-06-01 | 2011-10-05 | 清华大学 | Reliability assessment method for distribution network including photovoltaic power supply |
-
2013
- 2013-08-29 CN CN2013103846385A patent/CN103473712A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101188359A (en) * | 2007-11-16 | 2008-05-28 | 湖南大学 | Distribution network reliability evaluation method based on failure transfer feature of components |
| CN102097808A (en) * | 2011-01-31 | 2011-06-15 | 天津大学 | Method for estimating reliability of electric distribution system containing distributive wind power, photovoltaic and energy storage devices |
| CN102208809A (en) * | 2011-06-01 | 2011-10-05 | 清华大学 | Reliability assessment method for distribution network including photovoltaic power supply |
Non-Patent Citations (2)
| Title |
|---|
| A.PIEVATOLO: "Semi-Markov Processes for Power System Reliability Assessment With Application to Uninterruptible Power Supply", 《POWER SYSTEMS,IEEE TRANSACTIONS ON》, vol. 19, no. 3, 31 August 2004 (2004-08-31), XP011115765, DOI: doi:10.1109/TPWRS.2004.826756 * |
| 王浩鸣: "含分布式电源的配电***可靠性评估方法研究", 《中国博士学位论文全文数据库工程科技Ⅱ辑》, no. 5, 15 May 2013 (2013-05-15) * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103824234A (en) * | 2014-03-18 | 2014-05-28 | 国家电网公司 | Blocking and hierarchical structure based power distribution system reliability evaluation method |
| CN103824234B (en) * | 2014-03-18 | 2017-02-22 | 国家电网公司 | Blocking and hierarchical structure based power distribution system reliability evaluation method |
| CN104200051A (en) * | 2014-09-22 | 2014-12-10 | 哈尔滨工程大学 | Fault condition assessment and coping strategy simulation method for marine electric power system |
| CN104392117A (en) * | 2014-11-06 | 2015-03-04 | 国家电网公司 | Method for analyzing influence of distribution terminal on reliability of distribution system |
| CN110276532A (en) * | 2019-06-04 | 2019-09-24 | 国网江苏省电力有限公司泰州供电分公司 | A kind of distribution network reliability calculation method of the research based on load piecemeal |
| CN111579924A (en) * | 2020-05-19 | 2020-08-25 | 广东电网有限责任公司 | Fault position determination method, equipment and storage medium |
| CN111579924B (en) * | 2020-05-19 | 2022-04-12 | 广东电网有限责任公司 | Fault position determination method, equipment and storage medium |
| CN114422338A (en) * | 2022-03-29 | 2022-04-29 | 浙江网商银行股份有限公司 | Fault influence analysis method and device |
| CN114422338B (en) * | 2022-03-29 | 2022-08-26 | 浙江网商银行股份有限公司 | Fault influence analysis method and device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108318782B (en) | Power distribution network fault area identification method based on network topology and distribution transformer power failure information | |
| CN103473712A (en) | Method for establishing distribution network failure effect analysis sheet | |
| CN103762591B (en) | A kind of power distribution network topology layout method | |
| CN103633647B (en) | A kind of electric power system reliability degree calculation method based on power network topology | |
| CN103093276B (en) | Urban power grid risk assessment method | |
| US10158223B2 (en) | Method for generating current differential protection supernode based on electrical topology of regional distribution network | |
| CN103278746B (en) | Consider the implementation method of the electric network failure diagnosis system of uncertain information | |
| CN108287294B (en) | Power failure distribution transformer and topology analysis based power distribution network fault area rapid identification method | |
| CN106505559A (en) | Distribution network reliability analysis method based on power supply zone | |
| CN104103019A (en) | Operation risk assessment method and assessment system of power distribution network containing distributed power supply | |
| CN104750878A (en) | Mixed searching strategy-based topology fault diagnosis method | |
| CN102290811A (en) | Method for evaluating accident prearranged plan and running way | |
| CN104392330A (en) | 500 kV/220 kV power grid partitioning strategy evaluation method | |
| CN109586281B (en) | Power distribution network reliability assessment method, device and medium based on node optimization number | |
| CN105490265B (en) | A kind of overlapping quick determination method of power distribution network power failure range | |
| CN104201766B (en) | The method determining prepared auto restart sequential and combination is followed the trail of based on power supply point | |
| CN113793039A (en) | Medium and low voltage distribution network reliability assessment method considering multi-type terminals | |
| CN103529709A (en) | Method and system for realizing fault joint switching device model of power system | |
| CN111276967B (en) | Elasticity capability evaluation method and device of power system | |
| Zhihai et al. | An accurate fault location method of smart distribution network | |
| CN108509751A (en) | A kind of power information physical coupling system dynamic modelling method considering delay matrix | |
| CN109558657B (en) | Power supply mode reliability calculation method, device, storage medium and calculation equipment | |
| CN103903190B (en) | Consider the full voltage grade reliability estimation method of spacer assembly action | |
| CN107749623B (en) | Single-bus tripping and load loss accident grade determination method in double-bus connection mode | |
| CN105866630A (en) | Fault diagnosis method and system for handling whole-substation information loss |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20131225 |