CN107507098B - Power distribution network load transfer training evaluation method based on track array - Google Patents
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Abstract
The invention discloses a power distribution network load transfer training evaluation method based on a track array, which comprises the following steps: determining a load transfer standard rule array LTS; and determining a load transfer operation track array LTP. And generating a load transfer result information table LTI through the load transfer operation track array LTP. And determining an anti-misoperation rule array MOR to identify the misoperation condition in the dispatcher load transfer operation. Providing a load transfer operation sequence evaluation method according to a load transfer operation track array and an anti-misoperation rule array; providing a total evaluation method of load transfer result according to a load transfer result information table LTI and a load transfer standard rule array LTS; a power distribution network load transfer training evaluation method based on a track matrix is determined by integrating a load transfer operation sequence and a load transfer result total evaluation method. The evaluation method can better reflect the operation process of dispatcher load transfer, and has better practical training evaluation significance.
Description
Technical Field
The invention relates to the field of power distribution network dispatcher load transfer training, in particular to a power distribution network load transfer 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 the fault is recovered and the load is reversed under the normal condition, frequent load transfer operation is required. The load transfer training evaluation method of the power distribution network dispatcher is an automatic evaluation method for load transfer 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 load transfer training, and provides a power distribution network load transfer training evaluation method based on a trajectory array by combining the characteristics of a power distribution network.
The technical scheme for realizing the purpose is as follows:
a power distribution network load transfer training evaluation method based on a track array comprises the following steps:
(1) establishing a concept of a standard rule array LTS for load transfer, and recording related information in the standard load transfer by using the array;
(2) establishing a concept of a load transfer operation track array LTP, and recording all operation steps and related information of a dispatcher in the load transfer operation by using the LTP;
(3) establishing a load transfer result information table LTI, and recording related information after load transfer by using the table;
(4) determining an anti-misoperation rule array MOR to identify the misoperation condition in the load transfer operation of a dispatcher;
(5) providing a load transfer operation sequence evaluation method according to a load transfer operation track array and an anti-misoperation rule array;
(6) according to the load transfer result information table LTI and the load transfer standard rule array LTS, a load transfer result total evaluation method is provided,
(7) the load transfer operation sequence and the load transfer result total evaluation method are integrated, and a power distribution network load transfer training evaluation method based on a track array is determined;
when fault isolation is complete, the healthy area affected by the fault needs to be subjected to load transfer to restore power. Establishing a standard effect of load transfer and supply description by a load transfer and supply standard rule array LTS, which specifically comprises the following steps:
wherein, the 1 st action considers the minimum load shedding scheme of the load priority, and the 2 nd action considers the minimum action switching scheme of the load priority. The load balancing rate is the load shedding amount, the 2 nd column is the number of action switches, the 3 rd column is the load balancing rate, the 4 th column is the transfer time with the unit of seconds, and the 5 th column is the number of important load power failures, wherein the load balancing rate represents the transfer supply sharing degree of a plurality of interconnection feeders to a fault area, and is the load balancing rate among the transferable feeders, and if only one transferable interconnection feeder is available, the specified load balancing rate is 1.
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 load transfer operation track array LTP, recording the load transfer operation steps, specifically:
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 action switches.
Generating a load transfer result information table LTI through the load transfer operation trajectory array LTP, which specifically comprises the following steps:
LTI＝{li1,li2,li3,li4,li5}
the 1 st column is the actual load shedding amount, the 2 nd column is the actual number of action switches, the 3 rd column is the actual load balancing rate, the 4 th column is the actual transfer time, and the 5 th column is the actual number of important load power failures.
Establishing an anti-misoperation rule array MOR to identify misoperation in dispatcher load transfer operation, which specifically comprises the following steps:
MOR＝{m1,m2,m3,m4,m5,m6,m7,m8}
wherein m1 is a load pulling and closing knife switch, m2 is a charged pulling and closing grounding knife, m3 is power supply with an inspection plate, m4 is power failure with a power retention plate, m5 is power supply with a grounding plate, m6 shows that long-time loop closing is caused by operation, m7 is a current over load limit value, and m8 is a voltage over-cut load limit value.
Searching equipment violating the misoperation in the load transfer operation track array LTP according to the anti-misoperation rule array MOR, wherein the count is s4, and the LSS of the load transfer operation sequence score is as follows:
wherein d' is the number of LTP action switches
The load transfer result scoring matrix LRS generated according to the load transfer result information table LTI and the load transfer standard rule array LTS is as follows:
LRS＝[r1,r2,r3,r4,r5]，
wherein p represents a row and takes a value of 1-2; q represents a column and takes a value of 1 to 5. minlpq represents the minimum value in the q-th column, and maxlpq represents the maximum value in the q-th column.
According to the load transfer result scoring matrix LRS, considering the best condition, the load transfer final score generated is LFS (load transfer final score) as:
β q is a weight coefficient of each row of a load transfer result scoring matrix, and the value is 0-1.
The method for generating the distribution network load transfer training score LTTS based on the track array according to the load transfer operation sequence score LSS and the load transfer final score LFS is as follows:
the invention has the beneficial technical effects that: determining the concept of a load transfer standard rule array LTS, and recording related information in standard load transfer by the array; the concept of LTP is determined, and all operation steps and related information of the dispatcher in the load transfer operation are recorded by the LTP. And generating a load transfer result information table LTI through the load transfer operation track array LTP, and recording related information after load transfer by using the table. And determining an anti-misoperation rule array MOR to identify the misoperation condition in the dispatcher load transfer operation. Finally, according to the load transfer operation track array and the anti-misoperation rule array, a load transfer operation sequence evaluation method is provided; providing a total evaluation method of load transfer result according to a load transfer result information table LTI and a load transfer standard rule array LTS; a power distribution network load transfer training evaluation method based on a track matrix is determined by integrating a load transfer operation sequence and a load transfer result total evaluation method. The evaluation method can better reflect the operation process of dispatcher load transfer, 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 concept of a standard rule array LTS for load transfer, and recording related information in the standard load transfer by using the array;
when fault isolation is complete, the healthy area affected by the fault needs to be subjected to load transfer to restore power. Establishing a standard effect of load transfer and supply description by a load transfer and supply standard rule array LTS, which specifically comprises the following steps:
wherein, the 1 st action considers the minimum load shedding scheme of the load priority, and the 2 nd action considers the minimum action switching scheme of the load priority. The load balancing rate is the load shedding amount, the 2 nd column is the number of action switches, the 3 rd column is the load balancing rate, the 4 th column is the transfer time with the unit of seconds, and the 5 th column is the number of important load power failures, wherein the load balancing rate represents the transfer supply sharing degree of a plurality of interconnection feeders to a fault area, and is the load balancing rate among the transferable feeders, and if only one transferable interconnection feeder is available, the specified load balancing rate is 1.
(2) Establishing a concept of a load transfer operation track array LTP, and recording all operation steps and related information of a dispatcher in the load transfer operation by using the LTP;
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 load transfer operation track array LTP, recording the load transfer operation steps, specifically:
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 action switches.
(3) Establishing a load transfer result information table LTI, and recording related information after load transfer by using the table;
generating a load transfer result information table LTI through the load transfer operation trajectory array LTP, which specifically comprises the following steps:
LTI＝{li1,li2,li3,li4,li5}
the 1 st column is the actual load shedding amount, the 2 nd column is the actual number of action switches, the 3 rd column is the actual load balancing rate, the 4 th column is the actual transfer time, and the 5 th column is the actual number of important load power failures.
(4) Determining an anti-misoperation rule array MOR to identify the misoperation condition in the load transfer operation of a dispatcher;
establishing an anti-misoperation rule array MOR to identify misoperation in dispatcher load transfer operation, which specifically comprises the following steps:
MOR＝{m1,m2,m3,m4,m5,m6,m7,m8}
wherein m1 is a load pulling and closing knife switch, m2 is a charged pulling and closing grounding knife, m3 is power supply with an inspection plate, m4 is power failure with a power retention plate, m5 is power supply with a grounding plate, m6 shows that long-time loop closing is caused by operation, m7 is a current over load limit value, and m8 is a voltage over-cut load limit value.
(5) Providing a load transfer operation sequence evaluation method according to a load transfer operation track array and an anti-misoperation rule array;
searching equipment violating the misoperation in the load transfer operation track array LTP according to the anti-misoperation rule array MOR, wherein the count is s4, and the LSS of the load transfer operation sequence score is as follows:
wherein d' is the number of LTP action switches
(6) Providing a total evaluation method of load transfer result according to a load transfer result information table LTI and a load transfer standard rule array LTS;
the load transfer result scoring matrix LRS generated according to the load transfer result information table LTI and the load transfer standard rule array LTS is as follows:
LRS＝[r1,r2,r3,r4,r5]，
wherein p represents a row and takes a value of 1-2; q represents a column and takes a value of 1 to 5. minlpq represents the minimum value in the q-th column, and maxlpq represents the maximum value in the q-th column.
According to the load transfer result scoring matrix LRS, considering the best condition, the load transfer final score generated is LFS (load transfer final score) as:
β q is a weight coefficient of each row of a load transfer result scoring matrix, and the value is 0-1.
(7) The load transfer operation sequence and the load transfer result total evaluation method are integrated, and a power distribution network load transfer training evaluation method based on a track array is determined;
the method for generating the distribution network load transfer training score LTTS based on the track array according to the load transfer operation sequence score LSS and the load transfer final score LFS is as follows:
FIG. 1 shows a distribution network of a certain area, which comprises two feeders, wherein STA1 and STA2 are substations, DS1 and DS2 are substations, SP 1-SP 3 are switchyards, # 1- #7 are busbars of each substation, substation and substation, S1 and S9 are outgoing line breaker switches of the substations, S2-S8 and S10-S18 are load switches of a distribution room and a substation, S19 is a high-voltage line switch for a tie switch, two remote FTUs are arranged on each switch and can transmit fault signals upwards, T1-T12 are distribution transformers, D1-D12 are high-voltage disconnecting switches of an overhead line, currents of each distribution switch and the outgoing line switch of the substation are shown in the figure, the capacities of each switch are 630A, T7 and T4 are important user loads, and β q weight is 1.
When the high-voltage knife switches D1 and D2 have permanent faults, the switches S2 and S3 send fault signals, and the load transfer standard rule matrix LTS and the load transfer result information table LTI are shown in table 1.
TABLE 1 dispatcher training load transfer processing procedure table
In table 1, LTS and LTI are action switches in parentheses, and the dispatcher load transfer score is shown in table 2:
TABLE 2 dispatcher training load transfer scoring table
Claims (7)
1. A power distribution network load transfer training evaluation method based on a track array is characterized by comprising the following steps: the method comprises the following steps:
(1) establishing a load transfer standard rule array LTS, and recording related information in standard load transfer by the array;
(2) establishing a load transfer operation track array LTP, and recording all operation steps and related information of a dispatcher in the load transfer operation by using the array;
(3) establishing a load transfer result information table LTI, and recording related information after load transfer by using the table;
(4) determining an anti-misoperation rule array MOR to identify the misoperation condition in the load transfer operation of a dispatcher;
(5) providing a load transfer operation sequence evaluation method according to a load transfer operation track array LTP and an anti-misoperation rule array MOR;
(6) providing a load transfer result total evaluation method according to a load transfer result information table LTI and a load transfer standard rule array LTS;
(7) the method comprises the steps of integrating a load transfer operation sequence evaluation method and a load transfer result total evaluation method, and determining a power distribution network load transfer training evaluation method based on a track array;
after fault isolation is completed, load transfer needs to be performed on a healthy area affected by the fault to recover power supply, and a standard effect of load transfer standard rule array LTS description load transfer is established, which specifically comprises the following steps:
the 1 st behavior considers a minimum load shedding scheme of load priority, and the 2 nd behavior considers a minimum action switching scheme of load priority; the 1 st column is the load shedding amount, the 2 nd column is the number of action switches, the 3 rd column is the load balancing rate, the 4 th column is the transfer time, the unit is second, and the 5 th column is the number of important load power failures; the load balancing rate represents the transfer sharing degree of the plurality of contact feeders to the fault area, and is the load balancing rate among the transferable feeders, and if only one transferable contact feeder is available, the specified load balancing rate is 1.
2. The power distribution network load transfer training evaluation method based on the trajectory array as claimed in claim 1, wherein the method comprises the following steps:
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 load transfer operation track array LTP, recording the load transfer operation steps, specifically:
wherein, the 1 st column is the operating equipment number, the 2 nd column is the equipment operating state, 0 is the separating brake, 1 is the closing brake, the 3 rd column is the operation time of this step, the unit is the second, d' is the action switch number.
3. The power distribution network load transfer training evaluation method based on the trajectory array as claimed in claim 2, wherein the method comprises the following steps:
generating a load transfer result information table LTI through the load transfer operation trajectory array LTP, which specifically comprises the following steps:
LTI＝{li1,li2,li3,li4,li5}
the 1 st column is the actual load shedding amount, the 2 nd column is the actual number of action switches, the 3 rd column is the actual load balancing rate, the 4 th column is the actual transfer time, and the 5 th column is the actual number of important load power failures.
4. The power distribution network load transfer training evaluation method based on the trajectory array as claimed in claim 3, wherein the method comprises the following steps:
establishing an anti-misoperation rule array MOR to identify misoperation in dispatcher load transfer operation, which specifically comprises the following steps:
MOR＝{m1,m2,m3,m4,m5,m6,m7,m8}
wherein m1 is a load pulling and closing knife switch, m2 is a charged pulling and closing grounding knife, m3 is power supply with an inspection plate, m4 is power failure with a power retention plate, m5 is power supply with a grounding plate, m6 shows that long-time loop closing is caused by operation, m7 is a current over load limit value, and m8 is a voltage over-cut load limit value.
5. The power distribution network load transfer training evaluation method based on the trajectory array as claimed in claim 4, wherein the method comprises the following steps:
searching equipment violating the misoperation in the load transfer operation track array LTP according to the anti-misoperation rule array MOR, wherein the count is s4, and the LSS of the load transfer operation sequence score is as follows:
wherein d' is the number of LTP action switches of the load transfer operation track array.
6. The power distribution network load transfer training evaluation method based on the trajectory array as claimed in claim 5, wherein the method comprises the following steps:
the load transfer result scoring matrix LRS generated according to the load transfer result information table LTI and the load transfer standard rule array LTS is as follows:
LRS＝[r1,r2,r3,r4,r5]，
wherein p represents a row and takes a value of 1-2; q represents a column, and the value of q is 1-5; minlpq represents the minimum value in the q-th column, and maxlpq represents the maximum value in the q-th column;
according to the load transfer result scoring matrix LRS, considering the best condition, the load transfer final score generated is LFS (Loadtransfer final score) as:
β q is a weight coefficient of each row of a load transfer result scoring matrix, and the value is 0-1.
7. The power distribution network load transfer training evaluation method based on the trajectory array as claimed in claim 6, wherein the method comprises the following steps:
the method for generating the distribution network load transfer training score LTTS based on the track array according to the load transfer operation sequence score LSS and the load transfer final score LFS is as follows:
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