CN107293174B - power distribution network fault judgment training evaluation method based on track array - Google Patents
power distribution network fault judgment training evaluation method based on track array Download PDFInfo
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Abstract
The invention discloses a power distribution network fault judgment training evaluation method based on a track array, which comprises the following steps: establishing a fault isolation standard regular array FIS; a standard fault isolation range device set C is established. And establishing a fault isolation operation track array FIP, and determining a fault isolation range device set CP through the fault isolation operation track array FIP. And determining the anti-misoperation regular array MOR. According to the matching condition of the fault isolation operation track array, the fault isolation standard rule array and the anti-misoperation rule array, a fault isolation operation sequence and time evaluation method is provided; giving out a fault isolation range evaluation method according to the inclusion of the fault isolation range device set CP and the standard fault isolation range device set C; a power distribution network fault judgment training evaluation method based on a track array is determined. The evaluation method can better reflect the operation process of dispatcher fault isolation and has better practical training evaluation significance.
Description
Technical Field
the invention relates to the field of power distribution network dispatcher fault judgment training, in particular to a power distribution network fault judgment training evaluation method based on a trajectory array.
background
with the development of the smart power grid, the construction scale of the power distribution network is gradually enlarged, the number of monitoring devices is gradually increased, and the operation flow is gradually complicated. In order to ensure the safety, economy and reliability of power supply quality, higher requirements are put forward on the professional level of power grid dispatching operators.
the dispatcher training simulation system is widely applied as an important means for daily training and accident inversion of dispatching operation personnel. And reasonable evaluation on the level of a dispatcher and a training process is always a difficult point of the dispatcher training simulation. At present, a dispatcher training simulation system mainly comprises two types, namely a transformer substation training simulation system and a power grid training simulation system. The scoring method mainly comprises a manual intervention scoring method, a traditional addition and subtraction scoring method, an artificial intelligent matching method and the like.
the distribution network dispatcher training simulation system has the characteristics of the system, and is different from the protection independence of transformer substation training simulation and the protection complexity of main network dispatcher training simulation. When a fault occurs, a fault interval needs to be quickly judged according to a fault alarm signal, and the fault is isolated. The fault judgment training evaluation method for the power distribution network dispatcher is an automatic evaluation method for fault judgment operation of the dispatcher in training simulation, and has important practical significance for practical application of the dispatcher training simulation.
Disclosure of Invention
The invention aims to solve the evaluation problem of power distribution network dispatcher fault judgment training and provides a power distribution network fault judgment training evaluation method based on a track array by combining the characteristics of a power distribution network.
The technical scheme for realizing the purpose is as follows:
A power distribution network fault judgment training evaluation method based on a track array comprises the following steps:
(1) establishing a fault isolation standard regular array FIS, and recording fault isolation operation equipment and operation sequences among the equipment under the condition of multiple faults by using the array;
(2) establishing a standard fault isolation range equipment set C, and recording all equipment contained in an isolation area under the condition of standard fault isolation by using the set;
(3) Establishing a fault isolation operation track array FIP, and recording all operation steps and related information of a dispatcher in fault isolation operation by the array;
(4) Determining a fault isolation range device set CP, and recording an isolation area formed after the devices are isolated by the set CP;
(5) Determining an anti-misoperation rule matrix MOR to identify the misoperation condition in the fault isolation operation of a dispatcher;
(6) According to the matching condition of the fault isolation operation track array FIP, the fault isolation standard regular array FIS and the anti-misoperation regular array MOR, a fault isolation operation sequence and time evaluation method is provided;
(7) Giving out a fault isolation range evaluation method according to the inclusion of the fault isolation range device set CP and the standard fault isolation range device set C;
(8) A power distribution network fault judgment training evaluation method based on a track array is determined by integrating a fault isolation operation sequence, a time evaluation method and a fault isolation range evaluation method.
When a fault occurs, firstly, the fault area needs to be judged, and fault isolation is carried out on the judged fault area. The core of fault isolation operations are the selection of the isolation devices, the sequence of operations between the devices, and the time of fault isolation. The method is characterized in that a standard isolation operation of a certain fault is described by using a fault isolation standard regular array FIS, and specifically comprises the following steps:
The first column is the operating equipment number, the second column is the operating equipment sequence level, and the third column is the operating equipment time, and the unit is second. The order grade of the operation equipment refers to the order of the equipment operation, and the equipment with no limitation on the operation order takes the same grade from the level 1. n is the number of operating devices.
In practical application, due to environmental restrictions or switch failure, communication faults, consideration of scheduling personnel and the like, fault-isolated equipment is not optimal standard fault-isolated equipment, but the final fault-isolation range is basically feasible as long as the final fault-isolation range includes a standard fault-isolation range, and in order to ensure the fault tolerance of the fault-isolation training score, a set C is used for describing standard fault-isolation range equipment, specifically:
C＝{c1,c2,c3,…,ci,…ck}
Wherein, ciK is the number of all devices contained within the standard fault isolation range.
in the actual training process, each step of operation and related information of the dispatcher are required to be recorded so as to score the overall training condition of the dispatcher. Establishing a fault isolation operation trajectory array FIP recording fault isolation operation step, which specifically comprises the following steps:
The 1 st column is an operating equipment number, the 2 nd column is an equipment operating state, 0 is switching-off, and 1 is switching-on. The 3 rd column is the operation time of the present step, the unit is second, and d is the number of operating devices.
generating a fault isolation range device set CP through a fault isolation operation track array FIP to record an isolation area formed after the device is isolated, specifically:
CP＝{cp1,cp2,cp3,…,cpi,…cph}
wherein cpiH is the number of all devices included in the actual fault isolation range.
establishing a fault operation rule array MOR to identify fault isolation and load transfer misoperation, which specifically comprises the following steps:
MOR＝{m1,m2,m3,m4,m5,m6,m7,m8}
Wherein m is1for switching on and off the knife switch under load, m2for pulling and closing the earthing knife with electricity m3For supplying power to the maintenance plate m4For power failure with a power-saving board, m5For supplying power with a grounding plate m6meaning that the operation causes a long loop closing, m7for the current to cross the load limit, m8the voltage is over-cut to the load limit.
Searching the devices which are the same as the devices in the fault isolation operation track array FIP according to the FIS, and counting the number as s1Counting as s the operation whose device operation sequence violates the device sequence level in the fault isolation standard rule array FIS2Searching equipment violating the misoperation in the fault isolation operation track array FIP according to the misoperation rule array MOR, and counting the number to be s3Then the fault isolation operation sequence and the time score FSS are:
Wherein TS is the isolation operation time score, specifically
The score of 0 is obtained when the actual fault isolation time exceeds the specified isolation time, and the score of 1 is fully obtained when the actual fault isolation time does not exceed the specified isolation time.
And grading the fault isolation result according to the inclusion of the fault isolation range device set CP and the standard fault isolation range device set C. When the two equipment sets are completely the same, the fault isolation result is completely correct; when the set C contains the set CP, the fault isolation range is reduced, and partial faults are not isolated; when the set CP comprises the set C, the fault isolation range is enlarged, and the power failure range is enlarged for partial faults; when set C intersects set CP, it indicates that the partial isolation scope is correct. The fault isolation range score FRS is then:
Wherein alpha is1for the weight in the case of a reduced fault isolation range, α2for the weight in case of an extended fault isolation range, α3are weights in other cases than the above. The value range of each weight is 0-1, alpha2Weight to stress ratio alpha1The weight value is large, and the condition that the fault isolation range is expanded is safer than the condition that the fault isolation range is reduced. w is the same number of devices in the set C and the set CP.
The method for generating the power distribution network fault judgment training score FDS based on the track array according to the fault isolation operation sequence, the time score FSS and the fault isolation range score FRS is as follows:
The invention has the beneficial technical effects that: determining the concept of a fault isolation standard regular array FIS, and recording fault isolation operation equipment and operation sequences among the equipment under the condition of multiple faults by using the array; and determining a standard fault isolation range device table C, and recording all devices contained in the isolation area under the condition of standard fault isolation by using the table. The concept of a fault isolation operation track array FIP is determined, and all operation steps and related information of a dispatcher in the fault isolation operation are recorded by the array. And determining a fault isolation range device set CP through a fault isolation operation track array FIP, and recording an isolation area formed after the devices are isolated by the set. And determining an anti-misoperation rule matrix MOR to identify the misoperation condition in the fault isolation operation of the dispatcher. Finally, according to the matching condition of the fault isolation operation track array, the fault isolation standard rule array and the anti-misoperation rule array, a fault isolation operation sequence and time evaluation method is provided; giving out a fault isolation range evaluation method according to the inclusion of the fault isolation range device set CP and the standard fault isolation range device set C; a power distribution network fault judgment training evaluation method based on a track array is determined by integrating a fault isolation operation sequence, a time evaluation method and a fault isolation range evaluation method. The evaluation method can better reflect the operation process of dispatcher fault isolation and has better practical training evaluation significance.
Drawings
Figure 1 is a diagram of a typical power distribution network.
Detailed Description
The present invention is explained in detail below:
(1) establishing a fault isolation standard regular array FIS, and recording fault isolation operation equipment and operation sequences among the equipment under the condition of multiple faults by using the array;
when a fault occurs, firstly, the fault area needs to be judged, and fault isolation is carried out on the judged fault area. The core of fault isolation operations are the selection of the isolation devices, the sequence of operations between the devices, and the time of fault isolation. The method is characterized in that a standard isolation operation of a certain fault is described by using a fault isolation standard regular array FIS, and specifically comprises the following steps:
the first column is the operating equipment number, the second column is the operating equipment sequence level, and the third column is the operating equipment time, and the unit is second. The order grade of the operation equipment refers to the order of the equipment operation, and the equipment with no limitation on the operation order takes the same grade from the level 1. n is the number of operating devices.
(2) establishing a standard fault isolation range equipment set C, and recording all equipment contained in an isolation area under the condition of standard fault isolation by using the set;
In practical application, due to environmental restrictions or switch failure, communication faults, consideration of scheduling personnel and the like, fault-isolated equipment is not optimal standard fault-isolated equipment, but the final fault-isolation range is basically feasible as long as the final fault-isolation range includes a standard fault-isolation range, and in order to ensure the fault tolerance of the fault-isolation training score, a set C is used for describing standard fault-isolation range equipment, specifically:
C＝{c1,c2,c3,…,ci,…ck}
Wherein, cik is the number of all devices contained within the standard fault isolation range.
(3) Establishing a fault isolation operation track array FIP, and recording all operation steps and related information of a dispatcher in fault isolation operation by the array;
in the actual training process, each step of operation and related information of the dispatcher are required to be recorded so as to score the overall training condition of the dispatcher. Establishing a fault isolation operation trajectory array FIP recording fault isolation operation step, which specifically comprises the following steps:
The 1 st column is an operating equipment number, the 2 nd column is an equipment operating state, 0 is switching-off, and 1 is switching-on. The 3 rd column is the operation time of the present step, the unit is second, and d is the number of operating devices.
(4) Determining a fault isolation range device set CP, and recording an isolation area formed after the devices are isolated by the set CP;
generating a fault isolation range device set CP through a fault isolation operation track array FIP to record an isolation area formed after the device is isolated, specifically:
CP＝{cp1,cp2,cp3,…,cpi,…cph}
Wherein cpiH is the number of all devices included in the actual fault isolation range.
(5) Determining an anti-misoperation rule matrix MOR to identify the misoperation condition in the fault isolation operation of a dispatcher;
Establishing a fault operation rule array MOR to identify fault isolation and load transfer misoperation, which specifically comprises the following steps:
MOR＝{m1,m2,m3,m4,m5,m6,m7,m8}
Wherein m is1For switching on and off the knife switch under load, m2For pulling and closing the earthing knife with electricity m3For supplying power to the maintenance plate m4for power failure with a power-saving board, m5For supplying power with a grounding plate m6meaning that the operation causes a long loop closing, m7For the current to cross the load limit, m8The voltage is over-cut to the load limit.
(6) according to the matching condition of the fault isolation operation track array FIP, the fault isolation standard regular array FIS and the anti-misoperation regular array MOR, a fault isolation operation sequence and time evaluation method is provided;
Searching the devices which are the same as the devices in the fault isolation operation track array FIP according to the FIS, and counting the number as s1counting as s the operation whose device operation sequence violates the device sequence level in the fault isolation standard rule array FIS2Searching equipment violating the misoperation in the fault isolation operation track array FIP according to the misoperation rule array MOR, and counting the number to be s3Then the fault isolation operation sequence and the time score FSS are:
wherein TS is the isolation operation time score, specifically
The score of 0 is obtained when the actual fault isolation time exceeds the specified isolation time, and the score of 1 is fully obtained when the actual fault isolation time does not exceed the specified isolation time.
(7) giving out a fault isolation range evaluation method according to the inclusion of the fault isolation range device set CP and the standard fault isolation range device set C;
And grading the fault isolation result according to the inclusion of the fault isolation range device set CP and the standard fault isolation range device set C. When the two equipment sets are completely the same, the fault isolation result is completely correct; when the set C contains the set CP, the fault isolation range is reduced, and partial faults are not isolated; when the set CP comprises the set C, the fault isolation range is enlarged, and the power failure range is enlarged for partial faults; when set C intersects set CP, it indicates that the partial isolation scope is correct. The fault isolation range score FRS is then:
Wherein alpha is1for the weight in the case of a reduced fault isolation range, α2For the weight in case of an extended fault isolation range, α3are weights in other cases than the above. The value range of each weight is 0-1, alpha2Weight to stress ratio alpha1the weight value is large, and the condition that the fault isolation range is expanded is safer than the condition that the fault isolation range is reduced. w is the same number of devices in the set C and the set CP.
(8) the method comprises the steps of integrating a fault isolation operation sequence, a time evaluation method and a fault isolation range evaluation method, and determining a power distribution network fault judgment training evaluation method based on a track array;
The method for generating the power distribution network fault judgment training score FDS based on the track array according to the fault isolation operation sequence, the time score FSS and the fault isolation range score FRS is as follows:
As shown in fig. 1, the distribution network in a certain area is composed of two feeders, STA1 and STA2 are substations; DS1 and DS2 are power distribution stations; SP 1-SP 3 are switching stations; #1 to #7 are buses of each substation, distribution station and switching station; s1 and S9 are substation outgoing line breaker switches; S2-S8 and S10-S18 are distribution room and switching station load switches, S19 is a line high-voltage switch used as a communication switch, and each switch is provided with two remote FTUs capable of sending fault signals; T1-T12 are distribution transformers; D1-D12 are overhead line high-voltage disconnecting links, the currents of outgoing line switches of distribution transformers and substations are shown in the figure, the rated capacity of each switch is 630A, and T7 and T4 are important user loads. Alpha is alpha2The weight is taken to be 0.9.
When the high-voltage disconnecting links D1 and D2 have a permanent fault, the switches S2 and S3 send fault signals, such as a fault isolation standard rule array FIS, a standard fault isolation range device set C, a fault isolation operation trajectory array FIP, and a fault isolation range device set CP, as shown in table 1.
TABLE 1 dispatcher training failure determination processing procedure table
according to the contents in (6) to (8), the power distribution network fault judgment scores are as follows:
TABLE 2 dispatcher training fault handling scoring table
Claims (9)
1. A power distribution network fault judgment training evaluation method based on a track array is characterized by comprising the following steps: the method comprises the following steps:
(1) Establishing a fault isolation standard regular array FIS, and recording fault isolation operation equipment and operation sequences among the equipment under the condition of multiple faults by using the array;
(2) Establishing a standard fault isolation range equipment set C, and recording all equipment contained in an isolation area under the condition of standard fault isolation by using the set;
(3) Establishing a fault isolation operation track array FIP, and recording all operation steps and related information of a dispatcher in fault isolation operation by the array;
(4) Determining a fault isolation range device set CP, and recording an isolation area formed after the devices are isolated by the set CP;
(5) Determining an anti-misoperation rule array MOR to identify the misoperation condition in the fault isolation operation of a dispatcher;
(6) according to the matching condition of the fault isolation operation track array FIP, the fault isolation standard regular array FIS and the anti-misoperation regular array MOR, a fault isolation operation sequence and time evaluation method is provided;
(7) Giving out a fault isolation range evaluation method according to the inclusion of the fault isolation range device set CP and the standard fault isolation range device set C;
(8) a power distribution network fault judgment training evaluation method based on a track array is determined by integrating a fault isolation operation sequence, a time evaluation method and a fault isolation range evaluation method.
2. the power distribution network fault judgment training evaluation method based on the trajectory array as claimed in claim 1, wherein:
When a fault occurs, firstly, judging a fault area, and carrying out fault isolation on the judged fault area; the core of the fault isolation operation is selection of isolation equipment, operation sequence among the equipment and fault isolation time, and standard isolation operation for describing a certain fault by using a fault isolation standard rule array FIS, which specifically comprises the following steps:
The first column is the serial number of the operation equipment, the second column is the sequence grade of the operation equipment, the third column is the time of the operation equipment, the unit is second, the sequence grade of the operation equipment refers to the sequence of the operation of the equipment, the sequence is extended from 1 level, the equipment without limitation in the operation sequence takes the same grade, and n is the number of the operation equipment.
3. the power distribution network fault judgment training evaluation method based on the trajectory array as claimed in claim 2, wherein:
in practical application, due to environmental restrictions or switch failure, communication faults and consideration of scheduling personnel, the fault isolation equipment is not the optimal standard fault isolation equipment, but the final fault isolation range is also feasible as long as the final fault isolation range includes the standard fault isolation range, and in order to ensure the fault tolerance of the fault isolation training score, the standard fault isolation range equipment is described by a set C, specifically:
C＝{c1,c2,c3,…,ci,…ck}
Wherein, ciK is the number of all devices contained within the standard fault isolation range.
4. The power distribution network fault judgment training evaluation method based on the trajectory array as claimed in claim 3, wherein:
In the actual training process, each step of operation and related information of a dispatcher are required to be recorded so as to score the overall training condition of the dispatcher; establishing a fault isolation operation trajectory array FIP recording fault isolation operation step, which specifically comprises the following steps:
wherein, the 1 st column is an operating equipment number, the 2 nd column is an equipment operating state, 0 is an opening, 1 is a closing, the 3 rd column is the operating time of the step, the unit is second, and d is the number of the acting equipment.
5. The power distribution network fault judgment training evaluation method based on the trajectory array as claimed in claim 4, wherein:
Generating a fault isolation range device set CP through a fault isolation operation track array FIP to record an isolation area formed after the device is isolated, specifically:
CP＝{cp1,cp2,cp3,…,cpi,…cph}
wherein cpih is the number of all devices included in the actual fault isolation range.
6. The power distribution network fault judgment training evaluation method based on the trajectory array as claimed in claim 5, wherein:
Establishing a fault operation rule array MOR to identify fault isolation and load transfer misoperation, which specifically comprises the following steps:
MOR＝{m1,m2,m3,m4,m5,m6,m7,m8}
Wherein m is1for switching on and off the knife switch under load, m2For pulling and closing the earthing knife with electricity m3For supplying power to the maintenance plate m4For power failure with a power-saving board, m5for supplying power with a grounding plate m6Meaning that the operation causes a long loop closing, m7for the current to cross the load limit, m8The voltage is over-cut to the load limit.
7. The power distribution network fault judgment training evaluation method based on the trajectory array as claimed in claim 6, wherein:
Searching the devices which are the same as the devices in the fault isolation operation track array FIP according to the FIS, and counting the number as s1counting as s the operation whose device operation sequence violates the device sequence level in the fault isolation standard rule array FIS2searching equipment violating the misoperation in the fault isolation operation track array FIP according to the misoperation rule array MOR, and counting the number to be s3then the fault isolation operation sequence and the time score FSS are:
wherein TS is the isolation operation time score, specifically
the score of 0 is obtained when the actual fault isolation time exceeds the specified isolation time, and the score of 1 is fully obtained when the actual fault isolation time does not exceed the specified isolation time.
8. the power distribution network fault judgment training evaluation method based on the trajectory array as claimed in claim 7, wherein:
And grading the fault isolation result according to the inclusion of the fault isolation range device set CP and the standard fault isolation range device set C: when the two equipment sets are completely the same, the fault isolation result is completely correct; when the set C contains the set CP, the fault isolation range is reduced, and partial faults are not isolated; when the set CP comprises the set C, the fault isolation range is enlarged, and the power failure range is enlarged for partial faults; when the set C intersects the set CP, it indicates that the partial isolation scope is correct; the fault isolation range score FRS is then:
Wherein alpha is1for the weight in the case of a reduced fault isolation range, α2For the weight in case of an extended fault isolation range, α3The weights in other cases except the above cases are all in the range of 0-1, and alpha is2Weight to stress ratio alpha1The weight value is large, the condition that the fault isolation range is expanded is safer than the condition that the fault isolation range is reduced, and w is the same equipment number in the set C and the set CP.
9. The power distribution network fault judgment training evaluation method based on the trajectory array as claimed in claim 8, wherein:
The method for generating the power distribution network fault judgment training score FDS based on the track array according to the fault isolation operation sequence, the time score FSS and the fault isolation range score FRS is as follows:
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| CN107944670A (en) * | 2017-11-07 | 2018-04-20 | 国网山东省电力公司聊城供电公司 | Distribution network failure emulation training evaluation method based on radar map |
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