CN114465194B - Operation evaluation method and system for feeder automation system of power distribution network - Google Patents
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- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
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Abstract
The invention relates to the technical field of power distribution network operation and discloses a power distribution network feeder automation system operation evaluation method and a power distribution network feeder automation system operation evaluation system.
Description
Technical Field
The invention relates to the technical field of operation of power distribution networks, in particular to an operation evaluation method and an operation evaluation system of a feeder automation system of a power distribution network.
Background
The power distribution network automation system is an integrated system for monitoring and controlling related equipment in a power distribution network by combining a communication technology, an electronic technology and a computer network technology with the actual situation of the power equipment. At present, dispatching automation, substation automation, load management automation and office automation form the basic condition of power automation in China. Currently, distribution automation mainly refers to automation of distribution networks of voltage class 10kV and below, i.e. feeder automation (Feeder Automation, FA). The main purpose of feeder automation is: the power failure area is reduced, and the power failure time is shortened.
In recent years, with the rapid development of economy and society in China, the requirements of vast power supply users on power supply reliability are continuously improved, and feeder automation is widely paid attention to. With the deep popularization of the intelligent power grid, feeder automation of the power distribution network has been greatly developed.
However, due to the fact that the operation and maintenance degree of the power distribution terminal is insufficient, the defect is eliminated in time; the quality of the graph model of the power distribution network is low, and the graph model is not changed in time; the power distribution network topology quality is poor, equipment association accuracy is low and the like, so that the operation states of the feeder automation systems in all areas are quite different, the areas with good operation effects can achieve full self-healing of faults, and the feeder automation systems are used for fault sensing, fault studying and judging, fault positioning, fault isolation and load transferring without manual intervention.
However, in areas with poor operation effects, the feeder automation system cannot be started to perform fault sensing, fault handling is difficult to perform conveniently, and the current evaluation of the feeder automation system of the power distribution network is multipurpose in system delivery acceptance and functional detection of system on-line operation, so that the evaluation of the fault handling effect of the feeder automation system operated for a long time is not accurate enough, and the operation stability of the feeder automation system of the power distribution network is poor.
Disclosure of Invention
The invention provides a method and a system for evaluating the operation of a feeder automation system of a power distribution network, which solve the technical problem of poor operation stability of the feeder automation system of the power distribution network caused by inaccurate evaluation of fault treatment effect of the feeder automation system operated for a long time.
In view of this, a first aspect of the present invention provides a method for evaluating operation of a feeder automation system of a power distribution network, including the steps of:
obtaining the total number of short-circuit faults in a target power distribution area and fault handling information of a power distribution network feeder automation system in each power distribution area, wherein the fault handling information comprises the sensing short-circuit fault successful handling times, the positioning short-circuit fault area successful handling times, the isolation short-circuit fault successful handling times and the load transfer successful handling times;
constructing a fault handling information array based on the total number of short-circuit faults in the target distribution area and fault handling information of the distribution network feeder automation system in each distribution area;
calculating the perceived short circuit fault handling accuracy rate, the positioning short circuit fault area handling accuracy rate, the isolation short circuit fault handling accuracy rate and the load transfer handling accuracy rate of the distribution network feeder automation system of each distribution subarea based on the fault handling information array;
and carrying out weighted calculation on the perceived short-circuit fault handling accuracy, the positioning short-circuit fault area handling accuracy, the isolation short-circuit fault handling accuracy and the load transfer handling accuracy, thereby obtaining a comprehensive operation evaluation matrix of all feeder automation systems in a target distribution area.
Preferably, the fault handling information matrix is denoted FHIM, in particular,
in formula 1, fh i1 The total number of short-circuit faults occurring in time T for the feeder automation system in the ith distribution subarea; fh (fh) i2 The number of times of successful treatment of the perceived short-circuit fault of the feeder automation system in the ith distribution subarea in time T; fh (fh) i3 The number of successful treatments of the positioning short-circuit fault area in time T for the feeder automation system in the ith distribution sub-area; fh (fh) i4 Successful treatment of frequency fh for isolated short circuit fault of feeder automation system in ith distribution sub-area in time T i5 The number of successful treatments is supplied to the load transfer of the feeder automation system in the ith distribution area in time T, i=1, 2,3, …, n, n being the total number of feeder automation systems in the target distribution area.
Preferably, the step of calculating the perceived short-circuit fault handling accuracy, the positioning short-circuit fault area handling accuracy, the isolated short-circuit fault handling accuracy and the load transfer handling accuracy of the distribution network feeder automation system of each distribution sub-area based on the fault handling information array specifically includes:
calculating the perceived short-circuit fault handling accuracy of the feeder automation system of the distribution network in the ith distribution subarea based on the fault handling information array by the following formula 2, wherein the formula 2 is,
in formula 2, SFPR i Perceived short circuit for distribution network feeder automation systems in an ith distribution sub-areaBarrier treatment accuracy;
calculating a positioning short-circuit fault region handling accuracy of the distribution network feeder automation system in the ith distribution sub-region based on the fault handling information array by the following formula 3, wherein the formula 3 is,
in SFLR 3 i The method comprises the steps of setting the accuracy rate of positioning short-circuit fault areas of a feeder automation system of a distribution network in an ith distribution subarea;
calculating isolation short circuit fault handling accuracy of the feeder automation system of the distribution network in the ith distribution subarea based on the fault handling information array through the following formula 4, wherein the formula 4 is,
in formula 4, SFIR i The method comprises the steps of (1) disposing accuracy rate of isolation short-circuit faults of a feeder automation system of a distribution network in an ith distribution subarea;
calculating the load transfer and supply treatment accuracy of the feeder automation system of the distribution network in the ith distribution subarea based on the fault treatment information array through the following formula 5, wherein the formula 5 is,
in formula 5, LTSR i And (5) transferring and disposing accuracy rate for the load of the feeder automation system of the distribution network in the ith distribution subarea.
Preferably, the step of performing weighted calculation on the perceived short-circuit fault handling accuracy, the locating short-circuit fault area handling accuracy, the isolated short-circuit fault handling accuracy and the load transfer handling accuracy, so as to obtain a comprehensive operation evaluation matrix of all feeder automation systems in a target distribution area specifically includes:
establishing a comprehensive operation evaluation matrix by the perceived short-circuit fault handling accuracy, the positioning short-circuit fault area handling accuracy, the isolation short-circuit fault handling accuracy and the load transfer handling accuracy,
COEM＝[CE 1 ,CE 2 ,…,CE i ,…,CE n ]6. The method is to
In formula 6, COEM is the comprehensive operation evaluation matrix, CE i And evaluating the operation of the feeder automation system of the distribution network in the ith distribution subarea, wherein,
in formula 7, alpha 1 To perceive the influence coefficient, alpha, of the short circuit fault handling accuracy 2 To locate the influence coefficient, alpha, of the handling accuracy of the short-circuit fault region 3 To isolate the influence coefficient, alpha, of the short circuit fault handling accuracy 4 Impact coefficient for load transfer handling accuracy, j=1, 2,3,4.
In a second aspect, the present invention further provides an operation evaluation system of a feeder automation system of a power distribution network, including:
the system comprises an acquisition module, a load transfer module and a load transfer module, wherein the acquisition module is used for acquiring the total number of short circuit faults in a target distribution area and fault handling information of a distribution network feeder automation system in each distribution area, and the fault handling information comprises the sensing short circuit fault successful handling times, the positioning short circuit fault area successful handling times, the isolation short circuit fault successful handling times and the load transfer successful handling times;
the information array construction module is used for constructing a fault handling information array based on the total number of short-circuit faults in the target distribution area and fault handling information of the distribution network feeder automation system in each distribution area;
the calculation module is used for calculating the perceived short circuit fault handling accuracy rate, the positioning short circuit fault area handling accuracy rate, the isolation short circuit fault handling accuracy rate and the load transfer handling accuracy rate of the distribution network feeder automation system of each distribution subarea based on the fault handling information array;
and the evaluation module is used for carrying out weighted calculation on the perceived short circuit fault handling accuracy, the positioning short circuit fault area handling accuracy, the isolation short circuit fault handling accuracy and the load transfer handling accuracy so as to obtain a comprehensive operation evaluation matrix of all feeder automation systems in the target distribution area.
Preferably, the fault handling information matrix is denoted FHIM, in particular,
in formula 1, fh i1 The total number of short-circuit faults occurring in time T for the feeder automation system in the ith distribution subarea; fh (fh) i2 The number of times of successful treatment of the perceived short-circuit fault of the feeder automation system in the ith distribution subarea in time T; fh (fh) i3 The number of successful treatments of the positioning short-circuit fault area in time T for the feeder automation system in the ith distribution sub-area; fh (fh) i4 Successful treatment of frequency fh for isolated short circuit fault of feeder automation system in ith distribution sub-area in time T i5 The number of successful treatments is supplied to the load transfer of the feeder automation system in the ith distribution area in time T, i=1, 2,3, …, n, n being the total number of feeder automation systems in the target distribution area.
Preferably, the computing module specifically includes:
a first calculation sub-module for calculating a perceived short-circuit fault handling accuracy of the distribution network feeder automation system in the ith distribution sub-area based on the fault handling information array by the following equation 2,
in formula 2, SFPR i Perceived short circuit fault handling for distribution network feeder automation systems within an ith distribution sub-areaAccuracy rate;
a second calculation sub-module for calculating the positioning short-circuit fault region handling accuracy of the distribution network feeder automation system in the ith distribution sub-region based on the fault handling information array by the following formula 3, wherein the formula 3 is,
in SFLR 3 i The method comprises the steps of setting the accuracy rate of positioning short-circuit fault areas of a feeder automation system of a distribution network in an ith distribution subarea;
a third calculation sub-module for calculating an isolated short circuit fault handling accuracy of the feeder automation system of the distribution network in the ith distribution sub-area based on the fault handling information array by the following formula 4, wherein the formula 4 is,
in formula 4, SFIR i The method comprises the steps of (1) disposing accuracy rate of isolation short-circuit faults of a feeder automation system of a distribution network in an ith distribution subarea;
a fourth calculation sub-module for calculating a load transfer handling accuracy of the feeder automation system of the distribution network in the ith distribution sub-area based on the fault handling information array by the following equation 5,
in formula 5, LTSR i And (5) transferring and disposing accuracy rate for the load of the feeder automation system of the distribution network in the ith distribution subarea.
Preferably, the evaluation module is specifically configured to establish a comprehensive operation evaluation matrix by the perceived short-circuit fault handling accuracy, the localized short-circuit fault area handling accuracy, the isolated short-circuit fault handling accuracy, and the load transfer handling accuracy,
COEM＝[CE 1 ,CE 2 ,…,CE i ,…,CE n ]6. The method is to
In formula 6, COEM is the comprehensive operation evaluation matrix, CE i And evaluating the operation of the feeder automation system of the distribution network in the ith distribution subarea, wherein,
in formula 7, alpha 1 To perceive the influence coefficient, alpha, of the short circuit fault handling accuracy 2 To locate the influence coefficient, alpha, of the handling accuracy of the short-circuit fault region 3 To isolate the influence coefficient, alpha, of the short circuit fault handling accuracy 4 Impact coefficient for load transfer handling accuracy, j=1, 2,3,4.
From the above technical scheme, the invention has the following advantages:
according to the invention, the fault handling information array is constructed to record the total number of short-circuit faults in a target distribution area and fault handling information of all distribution network feeder automation systems in a distribution subarea, the perceived short-circuit fault handling accuracy, the positioning short-circuit fault area handling accuracy, the isolation short-circuit fault handling accuracy and the load transfer handling accuracy of the distribution network feeder automation systems are calculated through the fault handling information array, so that a plurality of operation states of each distribution network feeder automation system are evaluated, and meanwhile, the perceived short-circuit fault handling accuracy, the positioning short-circuit fault area handling accuracy, the isolation short-circuit fault handling accuracy and the load transfer handling accuracy of the distribution network feeder automation systems are calculated in a weighted manner to obtain a comprehensive operation evaluation matrix, so that the fault handling effect of the distribution network feeder automation systems is evaluated, and the effects of the automatic operation of each distribution network feeder automation system can be reflected better in the perceived short-circuit fault handling accuracy, the positioning short-circuit fault handling accuracy and the load transfer handling accuracy of the distribution network automation systems, and the accuracy of the distribution network feeder automation systems are improved, and the reliability of the distribution network operation is improved.
Drawings
Fig. 1 is a flowchart of an operation evaluation method of a feeder automation system of a power distribution network according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an operation evaluation system of a feeder automation system of a power distribution network according to an embodiment of the present invention.
Detailed Description
In order to make the present invention better understood by those skilled in the art, the following description will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
For easy understanding, please refer to fig. 1, the operation evaluation method of the feeder automation system of the power distribution network provided by the invention comprises the following steps:
s1, acquiring the total number of short-circuit faults in a target distribution area and fault handling information of a distribution network feeder automation system in each distribution area, wherein the fault handling information comprises the sensing short-circuit fault successful handling times, the positioning short-circuit fault area successful handling times, the isolation short-circuit fault successful handling times and the load transfer successful handling times.
It is understood that the total number of short-circuit faults in the target distribution area and fault handling information of all distribution network feeder automation systems in the affiliated distribution area can be obtained from the power metering system in the target distribution area.
The total number of short-circuit faults is the total number of short-circuit faults actually occurring in a distribution area, the perceived successful treatment times of the short-circuit faults are the starting times of the feeder automation system for perceiving the short-circuit faults and participating in fault treatment, the successful treatment times of the positioning short-circuit fault areas are the times of accurately judging and positioning the short-circuit fault areas by the feeder automation system, the successful treatment times of the isolation short-circuit faults are the times of the feeder automation system for successfully isolating the short-circuit faults, and the successful treatment times of load transfer are the times of the feeder automation system for successfully load transfer.
S2, constructing a fault handling information array based on the total number of short-circuit faults in the target distribution area and fault handling information of the distribution network feeder automation system in each distribution area.
S3, calculating the perceived short circuit fault handling accuracy, the positioning short circuit fault area handling accuracy, the isolation short circuit fault handling accuracy and the load transfer handling accuracy of the distribution network feeder automation system of each distribution subarea based on the fault handling information array.
And S4, carrying out weighted calculation on the perceived short circuit fault handling accuracy, the positioning short circuit fault area handling accuracy, the isolation short circuit fault handling accuracy and the load transfer handling accuracy, thereby obtaining the comprehensive operation evaluation matrix of all feeder automation systems in the target distribution area.
According to the operation evaluation method for the power distribution network feeder automation system, the fault handling information array is constructed to record the total number of short-circuit faults in the target power distribution area and fault handling information of all power distribution network feeder automation systems in the power distribution subarea, the perceived short-circuit fault handling accuracy, the positioning short-circuit fault area handling accuracy, the isolation short-circuit fault handling accuracy and the load transfer handling accuracy of the power distribution network feeder automation system are calculated through the fault handling information array, so that a plurality of operation states of each power distribution network feeder automation system are evaluated, meanwhile, the comprehensive operation evaluation matrix is obtained through weighted calculation of the perceived short-circuit fault handling accuracy, the positioning short-circuit fault area handling accuracy, the isolation short-circuit fault handling accuracy and the load transfer handling accuracy of the power distribution network feeder automation system, and therefore the evaluation of the fault handling effect of the feeder automation system is completed, the perceived short-circuit fault handling accuracy, the positioning short-circuit fault area handling accuracy, the isolation short-circuit fault handling accuracy and the load transfer handling accuracy of the power distribution feeder automation system can better reflect the automatic operation effect of each power distribution network feeder automation system, and the operation accuracy of the power distribution network feeder automation system is improved, and the operation stability of the system is also improved.
In one embodiment, the fault handling information matrix is denoted FHIM, in particular,
in formula 1, fh i1 The total number of short-circuit faults occurring in time T for the feeder automation system in the ith distribution subarea; fh (fh) i2 The number of times of successful treatment of the perceived short-circuit fault of the feeder automation system in the ith distribution subarea in time T; fh (fh) i3 The number of successful treatments of the positioning short-circuit fault area in time T for the feeder automation system in the ith distribution sub-area; fh (fh) i4 Successful treatment of frequency fh for isolated short circuit fault of feeder automation system in ith distribution sub-area in time T i5 The number of successful treatments is supplied to the load transfer of the feeder automation system in the ith distribution area in time T, i=1, 2,3, …, n, n being the total number of feeder automation systems in the target distribution area.
In a specific embodiment, step S3 specifically includes:
s301, calculating the perceived short-circuit fault handling accuracy of the feeder automation system of the distribution network in the ith distribution subarea based on the fault handling information array through the following formula 2, wherein the formula 2 is,
in formula 2, SFPR i The method comprises the steps of (1) disposing accuracy rate for perceived short-circuit faults of a feeder automation system of a distribution network in an ith distribution subarea;
s302, calculating the positioning short-circuit fault area handling accuracy of the distribution network feeder automation system in the ith distribution subarea based on the fault handling information array through the following formula 3, wherein the formula 3 is,
in SFLR 3 i The method comprises the steps of setting the accuracy rate of positioning short-circuit fault areas of a feeder automation system of a distribution network in an ith distribution subarea;
s303, calculating the isolation short-circuit fault handling accuracy of the feeder automation system of the distribution network in the ith distribution subarea based on the fault handling information array through the following formula 4, wherein the formula 4 is,
in formula 4, SFIR i The method comprises the steps of (1) disposing accuracy rate of isolation short-circuit faults of a feeder automation system of a distribution network in an ith distribution subarea;
s304, calculating the load transfer and supply treatment accuracy of the feeder automation system of the distribution network in the ith distribution subarea based on the fault treatment information array through the following formula 5, wherein the formula 5 is,
in formula 5, LTSR i And (5) transferring and disposing accuracy rate for the load of the feeder automation system of the distribution network in the ith distribution subarea.
In a specific embodiment, step S4 specifically includes:
establishing a comprehensive operation evaluation matrix by sensing the short circuit fault handling accuracy, positioning the short circuit fault area handling accuracy, isolating the short circuit fault handling accuracy and the load transfer handling accuracy,
COEM＝[CE 1 ,CE 2 ,…,CE i ,…,CE n ]6. The method is to
In 6, COEM is a heddleCo-operation evaluation matrix, CE i And evaluating the operation of the feeder automation system of the distribution network in the ith distribution subarea, wherein,
in formula 7, alpha 1 To perceive the influence coefficient, alpha, of the short circuit fault handling accuracy 2 To locate the influence coefficient, alpha, of the handling accuracy of the short-circuit fault region 3 To isolate the influence coefficient, alpha, of the short circuit fault handling accuracy 4 Impact coefficient for load transfer handling accuracy, j=1, 2,3,4.
Wherein alpha is 1 、α 2 、α 3 And alpha 4 The setting may be made based on expert experience.
The following illustrates the effects of the operation evaluation method of the feeder automation system of the power distribution network provided in the present embodiment by way of the following example.
1) The method comprises the steps of obtaining the total number of short-circuit faults in a target distribution area and fault handling information of a distribution network feeder automation system in each distribution area, wherein the fault handling information is specifically shown in table 1;
TABLE 1
2) Constructing a fault handling information array from the data in table 1 is,
3) Calculating the perceived short circuit fault handling accuracy, the positioning short circuit fault area handling accuracy, the isolation short circuit fault handling accuracy and the load transfer handling accuracy of the distribution network feeder automation system of each distribution subarea through the fault handling information array FHIM, as shown in table 2;
TABLE 2
| System serial number | SFPR | SFLR | SFIR | LTSR |
| System 1 | 81.395％ | 91.429％ | 80％ | 80％ |
| System 2 | 41.071％ | 52.174％ | 47.826％ | 34.783％ |
| System 3 | 100％ | 100％ | 100％ | 100％ |
| System 4 | 100％ | 89.189％ | 89.189％ | 89.189％ |
| System 5 | 70.968％ | 86.364％ | 86.364 | 68.182％ |
3) Performing weighted calculation on the perceived short-circuit fault handling accuracy, the positioning short-circuit fault area handling accuracy, the isolation short-circuit fault handling accuracy and the load transfer handling accuracy to obtain a comprehensive operation evaluation matrix as follows:
COEM＝[83.206％ 43.964％ 100％ 91.892％ 77.969％]
the comprehensive operation evaluation matrix is easy to obtain, and the operation effect of the system 3 is optimal and is 100% in 5 systems; 4 times of the system, 91.892%; system 1, row 3, 83.206%; system 5 row 4, 77.969%; system 2 was worst 43.964%. Therefore, the accuracy of evaluating the fault treatment effect of the feeder automation system running for a long time is improved, and the running stability of the feeder automation system of the power distribution network is also improved.
The above is a detailed description of an embodiment of a power distribution network feeder automation system operation evaluation method provided by the present invention, and the following is a detailed description of an embodiment of a power distribution network feeder automation system operation evaluation system provided by the present invention.
For easy understanding, please refer to fig. 2, the operation evaluation system of the feeder automation system for a power distribution network provided by the present invention includes:
an obtaining module 100, configured to obtain a total number of short-circuit faults in a target power distribution area and fault handling information of a feeder automation system of the power distribution network in each power distribution sub-area, where the fault handling information includes a perceived successful handling number of short-circuit faults, a localized successful handling number of short-circuit faults, an isolated perceived successful handling number of short-circuit faults, and a load transfer successful handling number;
an information matrix construction module 200, configured to construct a fault handling information matrix based on a total number of short-circuit faults in the target distribution area and fault handling information of the distribution network feeder automation system in each distribution sub-area;
the calculation module 300 is used for calculating the perceived short circuit fault handling accuracy rate, the positioning short circuit fault area handling accuracy rate, the isolation short circuit fault handling accuracy rate and the load transfer handling accuracy rate of the distribution network feeder automation system of each distribution subarea based on the fault handling information array;
the evaluation module 400 is configured to perform weighted calculation on the perceived short-circuit fault handling accuracy, the positioning short-circuit fault area handling accuracy, the isolated short-circuit fault handling accuracy and the load transfer handling accuracy, so as to obtain a comprehensive operation evaluation matrix of all feeder automation systems in the target distribution area.
In one embodiment, the fault handling information matrix is denoted FHIM, in particular,
in formula 1, fh i1 The total number of short-circuit faults occurring in time T for the feeder automation system in the ith distribution subarea; fh (fh) i2 The number of times of successful treatment of the perceived short-circuit fault of the feeder automation system in the ith distribution subarea in time T; fh (fh) i3 The number of successful treatments of the positioning short-circuit fault area in time T for the feeder automation system in the ith distribution sub-area; fh (fh) i4 For the number of successful treatments of isolation-aware short-circuit faults, fh, of feeder automation systems in the ith distribution sub-area in time T i5 The number of successful treatments is supplied to the load transfer of the feeder automation system in the ith distribution area in time T, i=1, 2,3, …, n, n being the total number of feeder automation systems in the target distribution area.
In a specific embodiment, the computing module specifically includes:
a first calculation sub-module for calculating a perceived short-circuit fault handling accuracy of the distribution network feeder automation system within the i-th distribution sub-area based on the fault handling information array by the following equation 2,
in formula 2, SFPR i The method comprises the steps of (1) disposing accuracy rate for perceived short-circuit faults of a feeder automation system of a distribution network in an ith distribution subarea;
a second calculation sub-module for calculating a positioning short-circuit fault region handling accuracy of the distribution network feeder automation system in the ith distribution sub-region based on the fault handling information array by the following formula 3, wherein the formula 3 is,
in SFLR 3 i The method comprises the steps of setting the accuracy rate of positioning short-circuit fault areas of a feeder automation system of a distribution network in an ith distribution subarea;
a third calculation sub-module for calculating an isolated short circuit fault handling accuracy of the feeder automation system of the distribution network in the ith distribution sub-area based on the fault handling information array by the following equation 4,
in formula 4, SFIR i The method comprises the steps of (1) disposing accuracy rate of isolation short-circuit faults of a feeder automation system of a distribution network in an ith distribution subarea;
a fourth calculation sub-module for calculating a load transfer handling accuracy of the feeder automation system of the distribution network in the ith distribution sub-area based on the fault handling information array by the following equation 5,
in the formula 5, the components are,LTSR i and (5) transferring and disposing accuracy rate for the load of the feeder automation system of the distribution network in the ith distribution subarea.
In one embodiment, the evaluation module is specifically configured to establish a comprehensive operational evaluation matrix by perceiving a short circuit fault handling accuracy, locating a short circuit fault area handling accuracy, isolating a short circuit fault handling accuracy, and load transfer handling accuracy,
COEM＝[CE 1 ,CE 2 ,…,CE i ,…,CE n ]6. The method is to
In formula 6, COEM is the comprehensive operation evaluation matrix, CE i And evaluating the operation of the feeder automation system of the distribution network in the ith distribution subarea, wherein,
in formula 7, alpha 1 To perceive the influence coefficient, alpha, of the short circuit fault handling accuracy 2 To locate the influence coefficient, alpha, of the handling accuracy of the short-circuit fault region 3 To isolate the influence coefficient, alpha, of the short circuit fault handling accuracy 4 Impact coefficient for load transfer handling accuracy, j=1, 2,3,4.
It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, which are not repeated herein.
In the several embodiments provided by the present invention, it should be understood that the disclosed apparatus and method may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of elements is merely a logical functional division, and there may be additional divisions of actual implementation, e.g., multiple elements or components may be combined or integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed over a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in the embodiments of the present invention may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.
The above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (6)
1. The operation evaluation method of the feeder automation system of the power distribution network is characterized by comprising the following steps of:
obtaining the total number of short-circuit faults in a target power distribution area and fault handling information of a power distribution network feeder automation system in each power distribution area, wherein the fault handling information comprises the sensing short-circuit fault successful handling times, the positioning short-circuit fault area successful handling times, the isolation short-circuit fault successful handling times and the load transfer successful handling times;
constructing a fault handling information array based on the total number of short-circuit faults in the target distribution area and fault handling information of the distribution network feeder automation system in each distribution area;
the fault handling information matrix is denoted FHIM, in particular,
in formula 1, fh i1 The total number of short-circuit faults occurring in time T for the feeder automation system in the ith distribution subarea; fh (fh) i2 The number of times of successful treatment of the perceived short-circuit fault of the feeder automation system in the ith distribution subarea in time T; fh (fh) i3 The number of successful treatments of the positioning short-circuit fault area in time T for the feeder automation system in the ith distribution sub-area; fh (fh) i4 Successful treatment of frequency fh for isolated short circuit fault of feeder automation system in ith distribution sub-area in time T i5 The successful treatment times are supplied to the load transfer of the feeder automation system in the ith distribution area in the time T, and i=1, 2,3, …, n and n are the total number of the feeder automation systems in the target distribution area;
calculating the perceived short circuit fault handling accuracy rate, the positioning short circuit fault area handling accuracy rate, the isolation short circuit fault handling accuracy rate and the load transfer handling accuracy rate of the distribution network feeder automation system of each distribution subarea based on the fault handling information array;
and carrying out weighted calculation on the perceived short-circuit fault handling accuracy, the positioning short-circuit fault area handling accuracy, the isolation short-circuit fault handling accuracy and the load transfer handling accuracy, thereby obtaining a comprehensive operation evaluation matrix of all feeder automation systems in a target distribution area.
2. The method for evaluating the operation of the feeder automation system of the power distribution network according to claim 1, wherein the steps of calculating the perceived short-circuit fault handling accuracy, the positioning short-circuit fault area handling accuracy, the isolated short-circuit fault handling accuracy and the load transfer handling accuracy of the feeder automation system of the power distribution network of each power distribution subarea based on the fault handling information array specifically comprise:
calculating the perceived short-circuit fault handling accuracy of the feeder automation system of the distribution network in the ith distribution subarea based on the fault handling information array by the following formula 2, wherein the formula 2 is,
in formula 2, SFPR i The method comprises the steps of (1) disposing accuracy rate for perceived short-circuit faults of a feeder automation system of a distribution network in an ith distribution subarea;
calculating a positioning short-circuit fault region handling accuracy of the distribution network feeder automation system in the ith distribution sub-region based on the fault handling information array by the following formula 3, wherein the formula 3 is,
in SFLR 3 i The method comprises the steps of setting the accuracy rate of positioning short-circuit fault areas of a feeder automation system of a distribution network in an ith distribution subarea;
calculating isolation short circuit fault handling accuracy of the feeder automation system of the distribution network in the ith distribution subarea based on the fault handling information array through the following formula 4, wherein the formula 4 is,
in formula 4, SFIR i The method comprises the steps of (1) disposing accuracy rate of isolation short-circuit faults of a feeder automation system of a distribution network in an ith distribution subarea;
calculating the load transfer and supply treatment accuracy of the feeder automation system of the distribution network in the ith distribution subarea based on the fault treatment information array through the following formula 5, wherein the formula 5 is,
in formula 5, LTSR i And (5) transferring and disposing accuracy rate for the load of the feeder automation system of the distribution network in the ith distribution subarea.
3. The method for evaluating operation of feeder automation systems of a power distribution network according to claim 2, wherein the step of weighting the perceived short-circuit fault handling accuracy, the localized short-circuit fault area handling accuracy, the isolated short-circuit fault handling accuracy, and the load transfer handling accuracy to obtain a comprehensive operation evaluation matrix of all feeder automation systems in a target power distribution area specifically comprises:
establishing a comprehensive operation evaluation matrix by the perceived short-circuit fault handling accuracy, the positioning short-circuit fault area handling accuracy, the isolation short-circuit fault handling accuracy and the load transfer handling accuracy,
COEM＝[CE 1 ,CE 2 ,…,CE i ,…,CE n ]6. The method is to
In formula 6, COEM is the comprehensive operation evaluation matrix, CE i And evaluating the operation of the feeder automation system of the distribution network in the ith distribution subarea, wherein,
in formula 7, alpha 1 To perceive the influence coefficient, alpha, of the short circuit fault handling accuracy 2 To locate the influence coefficient, alpha, of the handling accuracy of the short-circuit fault region 3 To isolate the influence coefficient, alpha, of the short circuit fault handling accuracy 4 Impact coefficient for load transfer handling accuracy, j=1, 2,3,4.
4. An operation evaluation system of a feeder automation system of a power distribution network, comprising:
the system comprises an acquisition module, a load transfer module and a load transfer module, wherein the acquisition module is used for acquiring the total number of short circuit faults in a target distribution area and fault handling information of a distribution network feeder automation system in each distribution area, and the fault handling information comprises the sensing short circuit fault successful handling times, the positioning short circuit fault area successful handling times, the isolation short circuit fault successful handling times and the load transfer successful handling times;
the information array construction module is used for constructing a fault handling information array based on the total number of short-circuit faults in the target distribution area and fault handling information of the distribution network feeder automation system in each distribution area;
the fault handling information matrix is denoted FHIM, in particular,
in formula 1, fh i1 The total number of short-circuit faults occurring in time T for the feeder automation system in the ith distribution subarea; fh (fh) i2 The number of times of successful treatment of the perceived short-circuit fault of the feeder automation system in the ith distribution subarea in time T; fh (fh) i3 The number of successful treatments of the positioning short-circuit fault area in time T for the feeder automation system in the ith distribution sub-area; fh (fh) i4 Successful treatment of frequency fh for isolated short circuit fault of feeder automation system in ith distribution sub-area in time T i5 The successful treatment times are supplied to the load transfer of the feeder automation system in the ith distribution area in the time T, and i=1, 2,3, …, n and n are the total number of the feeder automation systems in the target distribution area;
the calculation module is used for calculating the perceived short circuit fault handling accuracy rate, the positioning short circuit fault area handling accuracy rate, the isolation short circuit fault handling accuracy rate and the load transfer handling accuracy rate of the distribution network feeder automation system of each distribution subarea based on the fault handling information array;
and the evaluation module is used for carrying out weighted calculation on the perceived short circuit fault handling accuracy, the positioning short circuit fault area handling accuracy, the isolation short circuit fault handling accuracy and the load transfer handling accuracy so as to obtain a comprehensive operation evaluation matrix of all feeder automation systems in the target distribution area.
5. The power distribution network feeder automation system operation evaluation system of claim 4, wherein the computing module specifically comprises:
a first calculation sub-module for calculating a perceived short-circuit fault handling accuracy of the distribution network feeder automation system in the ith distribution sub-area based on the fault handling information array by the following equation 2,
in formula 2, SFPR i The method comprises the steps of (1) disposing accuracy rate for perceived short-circuit faults of a feeder automation system of a distribution network in an ith distribution subarea;
a second calculation sub-module for calculating the positioning short-circuit fault region handling accuracy of the distribution network feeder automation system in the ith distribution sub-region based on the fault handling information array by the following formula 3, wherein the formula 3 is,
in SFLR 3 i The method comprises the steps of setting the accuracy rate of positioning short-circuit fault areas of a feeder automation system of a distribution network in an ith distribution subarea;
a third calculation sub-module for calculating an isolated short circuit fault handling accuracy of the feeder automation system of the distribution network in the ith distribution sub-area based on the fault handling information array by the following formula 4, wherein the formula 4 is,
in formula 4, SFIR i For the ith distribution sub-areaThe isolation short circuit fault handling accuracy of the distribution network feeder automation system;
a fourth calculation sub-module for calculating a load transfer handling accuracy of the feeder automation system of the distribution network in the ith distribution sub-area based on the fault handling information array by the following equation 5,
in formula 5, LTSR i And (5) transferring and disposing accuracy rate for the load of the feeder automation system of the distribution network in the ith distribution subarea.
6. The distribution grid feeder automation system operation evaluation system of claim 5, wherein the evaluation module is specifically configured to establish a comprehensive operation evaluation matrix by the perceived short circuit fault handling accuracy, the localized short circuit fault area handling accuracy, the isolated short circuit fault handling accuracy, and the load transfer handling accuracy,
COEM＝[CE 1 ,CE 2 ,…,CE i ,…,CE n ]6. The method is to
In the formula 6, COEM is a comprehensive operation evaluation matrix, CEi is an operation evaluation result of the feeder automation system of the distribution network in the ith distribution sub-area, wherein,
in formula 7, alpha 1 To perceive the influence coefficient, alpha, of the short circuit fault handling accuracy 2 To locate the influence coefficient, alpha, of the handling accuracy of the short-circuit fault region 3 To isolate the influence coefficient, alpha, of the short circuit fault handling accuracy 4 Impact coefficient for load transfer handling accuracy, j=1, 2,3,4.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105512729A (en) * | 2014-11-28 | 2016-04-20 | 上海交通大学 | Evaluation method and evaluation system for feeder automatic processing effect |
| CN107748965A (en) * | 2017-11-07 | 2018-03-02 | 国网山东省电力公司聊城供电公司 | Distribution network failure training evaluation method based on information similarity |
| CN110707818A (en) * | 2019-10-23 | 2020-01-17 | 上海浦源科技有限公司 | Power distribution network feeder automation action data processing method |
| CN112558563A (en) * | 2020-12-04 | 2021-03-26 | 国网江苏省电力有限公司南京供电分公司 | Distributed feeder automation evaluation method and system for 5G wireless communication |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109818781A (en) * | 2018-12-30 | 2019-05-28 | 国网天津市电力公司电力科学研究院 | Distribution postitallation evaluation method and system based on Data acquisition and spark |
-
2022
- 2022-02-08 CN CN202210118693.9A patent/CN114465194B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105512729A (en) * | 2014-11-28 | 2016-04-20 | 上海交通大学 | Evaluation method and evaluation system for feeder automatic processing effect |
| CN107748965A (en) * | 2017-11-07 | 2018-03-02 | 国网山东省电力公司聊城供电公司 | Distribution network failure training evaluation method based on information similarity |
| CN110707818A (en) * | 2019-10-23 | 2020-01-17 | 上海浦源科技有限公司 | Power distribution network feeder automation action data processing method |
| CN112558563A (en) * | 2020-12-04 | 2021-03-26 | 国网江苏省电力有限公司南京供电分公司 | Distributed feeder automation evaluation method and system for 5G wireless communication |
Non-Patent Citations (2)
| Title |
|---|
| 有源配电网的馈线自动化效果评价方法;朱红等;电力建设(第01期);第148-152页 * |
| 计及集中式馈线自动化的配电网可靠性评估模型;商海涛等;电力自动化设备(第05期);第129-135页 * |
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