CN110611311B - Power distribution method and device for electric valve - Google Patents
Power distribution method and device for electric valve Download PDFInfo
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- CN110611311B CN110611311B CN201910917264.6A CN201910917264A CN110611311B CN 110611311 B CN110611311 B CN 110611311B CN 201910917264 A CN201910917264 A CN 201910917264A CN 110611311 B CN110611311 B CN 110611311B
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Abstract
The embodiment of the disclosure provides a power distribution method of an electric valve, which comprises the following steps: the method comprises the steps that a plurality of power distribution model matrixes are obtained, each power distribution model matrix corresponds to a power distribution scheme, and each element value of each power distribution model matrix is used for representing the serial number of a power distribution cabinet which is distributed to an electric valve corresponding to the element for power distribution; for each power distribution model matrix, obtaining an evaluation index value of each evaluation index in a plurality of evaluation indexes corresponding to the power distribution model matrix; obtaining an evaluation value corresponding to each power distribution model matrix according to the weight of each evaluation index and the evaluation index value thereof; optimizing values of elements in the plurality of power distribution model matrices based on evaluation values of the plurality of power distribution model matrices; and selecting the power distribution model matrix with the minimum evaluation value from the plurality of optimized power distribution model matrices as a power distribution scheme of the electric valve. According to the embodiment of the invention, in the distribution process of the electric valves, the reliability of a power distribution system of the electric valves can be improved.
Description
Technical Field
The disclosure relates to the field of power distribution of nuclear power conventional island instruments, in particular to a power distribution method and device of an electric valve.
Background
The conventional island electric valve for nuclear power is used as a key valve of an instrument-controlled power distribution system, the operation state of the conventional island electric valve is closely related to the safe operation of a nuclear power station, and whether the electric valve can timely and accurately execute the function under the power supply fluctuation is related to the safe operation of the nuclear power station, so that the improvement of the reliability of the electric valve and the power distribution system thereof is more and more important.
In the prior art, the electric valve power distribution of the nuclear power conventional island generally adopts the following modes: the electric valves are distributed to the electric door power distribution cabinet according to the rated load capacity of the electric valves and the rated load capacity of the electric door power distribution cabinet, so that the total load capacity of the electric valves distributed on the same electric door power distribution cabinet is smaller than the rated load capacity of the electric door power distribution cabinet.
The inventors found that at least the following problems exist in the related art:
the electric valves are distributed to the electric valve power distribution cabinet according to the rated load capacity of the electric valves and the rated load capacity of the electric valve power distribution cabinet, the reliability of an electric valve power distribution system is not considered, and the reliability of the electric valve power distribution system is low.
Disclosure of Invention
The embodiment of the disclosure provides a power distribution method and device for an electric valve, which can improve the reliability of a power distribution system of the electric valve. The technical scheme is as follows:
the embodiment of the disclosure provides a power distribution method of an electric valve, which comprises the following steps:
the method comprises the steps that a plurality of power distribution model matrixes are obtained, each power distribution model matrix corresponds to a power distribution scheme, and each element value of each power distribution model matrix is used for representing the serial number of a power distribution cabinet which is distributed to an electric valve corresponding to the element for power distribution;
for each power distribution model matrix, obtaining an evaluation index value of each evaluation index in a plurality of evaluation indexes corresponding to the power distribution model matrix;
obtaining an evaluation value corresponding to each power distribution model matrix according to the weight of each evaluation index and the evaluation index value thereof;
optimizing values of elements in the plurality of power distribution model matrices based on evaluation values of the plurality of power distribution model matrices;
and selecting the power distribution model matrix with the minimum evaluation value from the plurality of optimized power distribution model matrices as a power distribution scheme of the electric valve.
Optionally, the evaluation index includes: the method for obtaining the evaluation index values of the plurality of evaluation indexes corresponding to the distribution model matrix comprises the following steps of:
obtaining an evaluation index value corresponding to the average power failure frequency according to the power failure times of all the electric valves in a preset time and the number of all the electric valves;
obtaining an evaluation index value corresponding to the average power failure time according to the power failure times of all the electric valves in a preset time, the power failure time of the electric valves and the number of the electric valves;
and obtaining an evaluation index value corresponding to the standard deviation of the node voltage according to the actual voltage of each voltage node and the rated voltage corresponding to each voltage node.
Optionally, the obtaining an evaluation value corresponding to each power distribution model matrix according to the weight of each evaluation index and the evaluation index value thereof includes:
inputting an evaluation index value of each evaluation index in a plurality of evaluation indexes corresponding to each power distribution model matrix and a weight of each evaluation index into a reliability evaluation function to obtain an evaluation value corresponding to each power distribution model matrix, wherein the reliability evaluation function is as follows:
wherein x isiIndex value, ω, representing the i-th reliability evaluation indexiA weight coefficient indicating the i-th reliability evaluation index, p is a positive integer, and f (x) indicates the evaluation value of the reliability evaluation function.
Optionally, the obtaining a plurality of power distribution model matrices includes:
generating a preset number of distribution model matrixes, wherein the number of rows of each distribution model matrix is one row, and the total column number of each distribution model matrix is used for representing the number of the electric valves;
obtaining distribution model matrixes corresponding to a plurality of distribution schemes meeting constraint conditions from the distribution model matrixes with the preset number, wherein the constraint conditions comprise:
in the distribution scheme corresponding to the distribution model matrix, the load of the distribution cabinet of each distribution cabinet is smaller than the rated load of the distribution cabinet, and the average load rate of the distribution cabinets is within a preset threshold range, wherein the average load rate of the distribution cabinets is the sum of the proportion of the load of the distribution cabinet of each distribution cabinet in the rated load of the distribution cabinet divided by the number of the distribution cabinets.
Optionally, the optimizing the element values in the plurality of power distribution model matrices based on the evaluation values of the plurality of power distribution model matrices includes:
determining a first power distribution model matrix with the minimum evaluation value;
updating operation is carried out for preset times, and each updating operation comprises the following steps: updating element values in each power distribution model matrix except the first power distribution model matrix; judging whether each updated power distribution model matrix meets preset conditions or not, and if the power distribution model matrix which does not meet the preset conditions exists, replacing the power distribution model matrix which does not meet the preset conditions one by using a randomly generated power distribution model matrix which meets the preset conditions to obtain a plurality of second power distribution model matrices; and determining a new first power distribution model matrix with the minimum evaluation value from the first power distribution model matrix and the plurality of second power distribution model matrices.
Optionally, the updating the element values in each power distribution model matrix except the first power distribution model matrix includes:
inputting element values in other power distribution model matrixes into a position updating formula to obtain an updated power distribution model matrix, wherein the position updating formula is as follows:
wherein, Xm t+1Representing the element value of the mth power distribution model matrix at the tth generation, L (lambda) is a Levier flight random search path, alpha represents the step control quantity,
is a dot product.
Optionally, the determining whether each of the updated distribution model matrices meets a preset condition includes:
obtaining a numerical value corresponding to each power distribution model matrix in the plurality of updated power distribution model matrices;
and comparing the numerical value with a preset finding probability, if the numerical value is smaller than the finding probability, meeting a preset condition, and if the numerical value is larger than the finding probability, not meeting the preset condition.
The disclosed embodiment provides a distribution device of electric valve, the device includes:
the system comprises a first acquisition module, a second acquisition module and a control module, wherein the first acquisition module is used for acquiring a plurality of power distribution model matrixes, each power distribution model matrix corresponds to one power distribution scheme, and each element value of the power distribution model matrix is used for representing the serial number of a power distribution cabinet which is distributed to an electric valve corresponding to the element for power distribution;
the second acquisition module is used for acquiring the evaluation index value of each evaluation index in the plurality of evaluation indexes corresponding to each power distribution model matrix;
the determining module is used for obtaining an evaluation value corresponding to each power distribution model matrix according to the weight of each evaluation index and the evaluation index value thereof;
an optimization module for optimizing the values of the elements in the plurality of power distribution model matrices based on the evaluation values of the plurality of power distribution model matrices;
and the selection module is used for selecting the power distribution model matrix with the minimum evaluation value from the plurality of optimized power distribution model matrices to serve as a power distribution scheme of the electric valve.
Optionally, the evaluation index includes: the second acquisition module is used for:
obtaining an evaluation index value corresponding to the average power failure frequency according to the power failure times of all the electric valves in a preset time and the number of all the electric valves;
obtaining an evaluation index value corresponding to the average power failure time according to the power failure times of all the electric valves in a preset time, the power failure time of the electric valves and the number of the electric valves;
and obtaining an evaluation index value corresponding to the standard deviation of the node voltage according to the actual voltage of each voltage node and the rated voltage corresponding to each voltage node.
Optionally, the determining module is configured to:
inputting an evaluation index value of each evaluation index in a plurality of evaluation indexes corresponding to each power distribution model matrix and a weight of each evaluation index into a reliability evaluation function to obtain an evaluation value corresponding to each power distribution model matrix, wherein the reliability evaluation function is as follows:
wherein x isiIndex value, ω, representing the i-th reliability evaluation indexiA weight coefficient indicating the i-th reliability evaluation index, p is a positive integer, and f (x) indicates the evaluation value of the reliability evaluation function.
Optionally, the first obtaining module is configured to:
generating a preset number of distribution model matrixes, wherein the number of rows of each distribution model matrix is one row, and the total column number of each distribution model matrix is used for representing the number of the electric valves;
obtaining distribution model matrixes corresponding to a plurality of distribution schemes meeting constraint conditions from the distribution model matrixes with the preset number, wherein the constraint conditions comprise:
in the distribution scheme corresponding to the distribution model matrix, the load of the distribution cabinet of each distribution cabinet is smaller than the rated load of the distribution cabinet, and the average load rate of the distribution cabinets is within a preset threshold range, wherein the average load rate of the distribution cabinets is the sum of the proportion of the load of the distribution cabinet of each distribution cabinet in the rated load of the distribution cabinet divided by the number of the distribution cabinets.
Optionally, the optimization module is configured to:
determining a first power distribution model matrix with the minimum evaluation value;
updating operation is carried out for preset times, and each updating operation comprises the following steps: updating element values in each power distribution model matrix other than the first power distribution model matrix; judging whether each updated power distribution model matrix meets preset conditions or not, and if the power distribution model matrix which does not meet the preset conditions exists, replacing the power distribution model matrix which does not meet the preset conditions one by using a randomly generated power distribution model matrix which meets the preset conditions to obtain a plurality of second power distribution model matrices; and determining a new first power distribution model matrix with the minimum evaluation value from the first power distribution model matrix and the plurality of second power distribution model matrices.
Optionally, the optimization module is further configured to:
inputting element values in other power distribution model matrixes into a position updating formula to obtain an updated power distribution model matrix, wherein the position updating formula is as follows:
wherein, Xm t+1Representing the element value of the mth power distribution model matrix at the tth generation, L (lambda) is a Levier flight random search path, alpha represents the step control quantity,
is a dot product.
Optionally, the optimization module is further configured to:
obtaining a numerical value corresponding to each power distribution model matrix in the plurality of updated power distribution model matrices;
and comparing the numerical value with a preset finding probability, if the numerical value is smaller than the finding probability, meeting a preset condition, and if the numerical value is larger than the finding probability, not meeting the preset condition.
The technical scheme provided by the embodiment of the disclosure at least comprises the following beneficial effects:
the embodiment of the disclosure provides a power distribution method of an electric valve, which comprises the following steps: the method comprises the steps that a plurality of power distribution model matrixes are obtained, each power distribution model matrix corresponds to a power distribution scheme, and each element value of each power distribution model matrix is used for representing the serial number of a power distribution cabinet which is distributed to an electric valve corresponding to the element for power distribution; for each power distribution model matrix, obtaining an evaluation index value of each evaluation index in a plurality of evaluation indexes corresponding to the power distribution model matrix; obtaining an evaluation value corresponding to each power distribution model matrix according to the weight of each evaluation index and the evaluation index value thereof; optimizing values of elements in the plurality of power distribution model matrices based on evaluation values of the plurality of power distribution model matrices; and selecting the power distribution model matrix with the minimum evaluation value from the plurality of optimized power distribution model matrices as a power distribution scheme of the electric valve. Compared with the scheme that the electric valves are distributed to the electric valve power distribution cabinets according to the rated load capacity of the electric valves and the rated load capacity of the electric valve power distribution cabinets, the scheme has the advantages that the evaluation values of the electric valves are considered, and therefore the reliability of an electric valve power distribution system can be improved in the distribution process of the electric valves.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a flowchart of a power distribution method for an electrically operated valve according to an embodiment of the present invention;
fig. 2 is a flowchart of a power distribution method for an electrically operated valve according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a power distribution apparatus of an electrically operated valve according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
An exemplary embodiment of the present disclosure provides a power distribution method of an electrically operated valve, which may be executed by a computer, as shown in fig. 1, and a process flow of the method may include the following steps:
step S101, a plurality of power distribution model matrixes are obtained, each power distribution model matrix corresponds to one power distribution scheme, and each element value of each power distribution model matrix is used for representing the serial number of a power distribution cabinet which is distributed to an electric valve corresponding to the element for power distribution;
step S102, for each power distribution model matrix, obtaining an evaluation index value of each evaluation index in a plurality of evaluation indexes corresponding to the power distribution model matrix;
step S103, obtaining an evaluation value corresponding to each power distribution model matrix according to the weight of each evaluation index and the evaluation index value thereof;
step S104, optimizing element values in the plurality of power distribution model matrixes based on evaluation values of the plurality of power distribution model matrixes;
and step S105, selecting the power distribution model matrix with the minimum evaluation value from the plurality of optimized power distribution model matrices as a power distribution scheme of the electric valve.
The embodiment of the disclosure provides a power distribution method of an electric valve, which comprises the following steps: acquiring a plurality of power distribution model matrixes, wherein each power distribution model matrix corresponds to a power distribution scheme, and each element value of each power distribution model matrix is used for representing the serial number of a power distribution cabinet which is distributed to the electric valve corresponding to the element for power distribution; for each power distribution model matrix, obtaining an evaluation index value of each evaluation index in a plurality of evaluation indexes corresponding to the power distribution model matrix; obtaining an evaluation value corresponding to each power distribution model matrix according to the weight of each evaluation index and the evaluation index value thereof; optimizing the element values in the plurality of power distribution model matrices based on the evaluation values of the plurality of power distribution model matrices; and selecting the power distribution model matrix with the minimum evaluation value from the plurality of optimized power distribution model matrices as a power distribution scheme of the electric valve. Compared with the scheme that the electric valves are distributed to the electric valve power distribution cabinets according to the rated load capacity of the electric valves and the rated load capacity of the electric valve power distribution cabinets, the scheme has the advantages that the evaluation values of the electric valves are considered, and therefore the reliability of an electric valve power distribution system can be improved in the distribution process of the electric valves.
Fig. 2 is a flowchart of a power distribution method for an electrically operated valve according to an embodiment of the present invention. The method is executed by a computer device, and referring to fig. 2, the method comprises steps S201-S206, and the steps of the method are described in detail below.
Step S201, generating a preset number of distribution model matrices, where the number of rows of each distribution model matrix is one row, and the total number of columns of each distribution model matrix is used to represent the number of the electrically operated valves.
It should be noted that, the position of each element in each power distribution model matrix corresponds to an electric valve, each element value of the power distribution model matrix is used to represent the serial number of the power distribution cabinet allocated to the electric valve corresponding to the element for power distribution, and the electric valves corresponding to the power distribution model matrix are respectively represented by column identifiers of the power distribution model matrix, so that a power distribution model matrix may represent a power distribution allocation scheme of all the electric valves corresponding to the power distribution model matrix, for example: when the number of the electric valves needing power distribution is 85, the number of the power distribution cabinets is 6, the number of rows of each power distribution model matrix is one row, the number of columns of the power distribution model matrix is 85 columns, the identification of the electric valve corresponding to the 2 nd column is 2, the identification is the same as the identification of the corresponding column, and the element values in the power distribution model matrix are 1-6 of the identification of the power distribution cabinets.
In some embodiments of the present invention, the manner of generating the preset number of power distribution model matrices may be: the number of the power distribution model matrixes to be generated is preset, and the preset number of the power distribution model matrixes are randomly generated according to the row number, the column number and the element value of the preset power distribution model matrixes.
Step S202, acquiring distribution model matrixes corresponding to a plurality of distribution schemes meeting constraint conditions from a preset number of distribution model matrixes;
wherein the constraint condition comprises:
in the distribution scheme corresponding to the distribution model matrix, the load capacity of the distribution cabinet of each distribution cabinet is smaller than the rated load capacity of the distribution cabinet, and the average load rate of the distribution cabinets is within a preset threshold range, wherein the average load rate of the distribution cabinets is the sum of the proportion of the load capacity of the distribution cabinet of each distribution cabinet in the rated load capacity of the distribution cabinet divided by the number of the distribution cabinets.
And the load of the power distribution cabinet of each power distribution cabinet is obtained according to the electric valve distributed to the power distribution cabinet in the power distribution scheme corresponding to the power distribution model matrix and the corresponding rated load of the electric valve.
It should be noted that, the number of the plurality of power distribution model matrices may also be preset, and in order to ensure that the plurality of power distribution model matrices meeting the requirement can be obtained from the preset number of power distribution model matrices, the number of the preset number of power distribution model matrices should be greater than the number of the power distribution model matrices meeting the constraint condition that need to be selected.
In some embodiments of the present invention, in order to ensure the reliability of the power distribution system corresponding to the power distribution cabinet, the obtained multiple power distribution schemes should meet the constraint condition, and therefore, when the power distribution schemes meet the constraint condition, the reliability of the power distribution schemes corresponding to the power distribution model matrix is evaluated, so as to obtain the power distribution scheme with the smallest evaluation value.
Step S203 is to acquire, for each distribution model matrix, an evaluation index value of each of a plurality of evaluation indexes corresponding to the distribution model matrix.
Wherein the evaluation index comprises: average outage frequency, average outage time and node voltage deviation standard deviation obtain the evaluation index value of a plurality of evaluation indexes that this distribution model matrix corresponds, include:
obtaining an evaluation index value corresponding to the average power-off frequency according to the power-off times of all the electric valves in the preset time and the number of all the electric valves;
obtaining an evaluation index value corresponding to the average power failure time according to the power failure times of all the electric valves in the preset time, the power failure time of the electric valves and the number of the electric valves;
and obtaining an evaluation index value corresponding to the standard deviation of the node voltage according to the actual voltage of each voltage node and the rated voltage corresponding to each voltage node.
The average outage frequency and the average outage time in the evaluation index are calculated from historical data of the power distribution system of the electrically operated valve. Therefore, the evaluation index values respectively corresponding to the average power failure frequency and the average power failure time in the evaluation indexes corresponding to different power distribution schemes corresponding to the power distribution model matrix are the same. Therefore, after the evaluation index values corresponding to the average outage frequency and the average outage time are calculated, the evaluation index values may be stored in advance, and the evaluation index values corresponding to the average outage frequency and the average outage time, which are stored in advance, may be directly obtained when the evaluation value is calculated for the power distribution plan corresponding to the power distribution model matrix. And the standard deviation of the node voltage is calculated in real time according to the power distribution scheme.
In some embodiments of the present invention, the manner of obtaining the evaluation index value corresponding to the standard deviation of the node voltage according to the actual voltage of each voltage node and the rated voltage corresponding to each voltage node may be:
and obtaining the difference value between the actual voltage of each voltage node and the rated voltage of the voltage node, summing all the difference values, and dividing the sum by the total number of the voltage nodes to obtain an evaluation index value corresponding to the standard deviation of the node voltage.
Step S204, inputting the evaluation index value of each evaluation index and the weight of each evaluation index in the plurality of evaluation indexes corresponding to each power distribution model matrix into a reliability evaluation function to obtain the evaluation value corresponding to each power distribution model matrix, wherein the reliability evaluation function is as follows:
wherein x isiIndex value, ω, representing the i-th reliability evaluation indexiA weight coefficient indicating the i-th reliability evaluation index, p is a positive integer, and f (x) indicates the evaluation value of the reliability evaluation function.
The evaluation index value of each evaluation index is normalized by subtracting the obtained evaluation index value of the evaluation index from a preset minimum value of the evaluation index corresponding to the evaluation index to obtain a corresponding first difference value, subtracting the maximum value of the evaluation index corresponding to the evaluation index from the minimum value of the evaluation index corresponding to the evaluation index to obtain a corresponding second difference value, and dividing the first difference value by the second difference value to obtain the evaluation index value of each evaluation index of the normalization process.
In some embodiments of the present invention, the weight of each evaluation index is determined by Delphi weighting, for example: and taking the average value of scores of the evaluation indexes by a preset number of judges as the weight of the evaluation indexes.
In step S205, the element values in the plurality of power distribution model matrices are optimized based on the evaluation values of the plurality of power distribution model matrices.
The smaller the evaluation value of the distribution model matrix is, the better the reliability of the distribution plan corresponding to the distribution model matrix is.
In some embodiments of the present invention, optimizing the values of the elements in the plurality of power distribution model matrices based on the evaluation values of the plurality of power distribution model matrices includes:
determining a first power distribution model matrix with the minimum evaluation value;
performing preset times of updating operations, wherein each updating operation comprises the following steps: updating element values in each power distribution model matrix except the first power distribution model matrix; judging whether each updated power distribution model matrix meets preset conditions or not, and if the power distribution model matrix which does not meet the preset conditions exists, replacing the power distribution model matrix which does not meet the preset conditions one by using a randomly generated power distribution model matrix which meets the preset conditions to obtain a plurality of second power distribution model matrices; and determining a new first power distribution model matrix with the minimum evaluation value from the first power distribution model matrix and the plurality of second power distribution model matrices.
It should be noted that, a cuckoo algorithm may be adopted to optimize the element values in the multiple power distribution model matrices based on the evaluation values of the multiple power distribution model matrices.
In some embodiments of the invention, updating the values of the elements in each distribution model matrix other than the first distribution model matrix comprises:
inputting the element values in other power distribution model matrixes into a position updating formula to obtain an updated power distribution model matrix, wherein the position updating formula is as follows:
wherein, Xm t+1Representing the element value of the mth power distribution model matrix at the tth generation, L (lambda) is a Levier flight random search path, alpha represents the step control quantity,
is a dot product.
The t-generation means the t-th iteration, L (λ) follows a lave probability distribution, and the specific content of L (λ) is set according to the actual situation, for example: the setting can be made according to L (λ) in the cuckoo algorithm.
In some embodiments of the present invention, determining whether each of the plurality of updated distribution model matrices meets a preset condition includes:
obtaining a numerical value corresponding to each power distribution model matrix in the plurality of updated power distribution model matrices;
and comparing the numerical value with a preset finding probability, if the numerical value is smaller than the finding probability, meeting a preset condition, and if the numerical value is larger than the finding probability, not meeting the preset condition.
It should be noted that the value corresponding to each power distribution model matrix is a randomly generated value within the range of [0, 1], and the power distribution model matrix is selected by comparing the value with a preset discovery probability, so that the range of updating the position of the power distribution model matrix is expanded, and the local optimization of the evaluation value of the first power distribution model matrix with the minimum evaluation value is prevented.
And updating the element values in each power distribution model matrix, taking the power distribution model matrix as an updated power distribution model matrix when the obtained power distribution model matrix meets the constraint condition, and regenerating a new power distribution model matrix when the generated power distribution model matrix does not meet the constraint condition when the element values of each power distribution model matrix are updated until the new power distribution model matrix meets the constraint condition, wherein the updating is completed.
And step S206, selecting the power distribution model matrix with the minimum evaluation value from the plurality of optimized power distribution model matrices as a power distribution scheme of the electric valve.
It should be noted that after obtaining the distribution scheme of the electrically operated valves, in an actual distribution process, a user may connect a plurality of electrically operated valves to the corresponding power distribution cabinets according to the distribution scheme formed by the computer.
Fig. 3 is a power distribution apparatus for an electrically operated valve according to an embodiment of the present invention, the apparatus including:
the first obtaining module 301 is configured to obtain a plurality of power distribution model matrices, where each power distribution model matrix corresponds to one power distribution allocation scheme, and each element value of each power distribution model matrix is used to represent a serial number of a power distribution cabinet allocated to an electric valve corresponding to the element to distribute power;
a second obtaining module 302, configured to obtain, for each power distribution model matrix, an evaluation index value of each evaluation index in multiple evaluation indexes corresponding to the power distribution model matrix;
the determining module 303 is configured to obtain an evaluation value corresponding to each power distribution model matrix according to the weight of each evaluation index and the evaluation index value thereof;
an optimizing module 304, configured to optimize element values in the plurality of power distribution model matrices based on evaluation values of the plurality of power distribution model matrices;
and a selecting module 305, configured to select, as a power distribution scheme of the electrically operated valve, a power distribution model matrix with a smallest evaluation value from the plurality of optimized power distribution model matrices.
Optionally, the evaluation index includes: the average outage frequency, the average outage time, and the standard deviation of the node voltage, the second obtaining module 302 is configured to:
obtaining an evaluation index value corresponding to the average power-off frequency according to the power-off times of all the electric valves in the preset time and the number of all the electric valves;
obtaining an evaluation index value corresponding to the average power failure time according to the power failure times of all the electric valves in the preset time, the power failure time of the electric valves and the number of the electric valves;
and obtaining an evaluation index value corresponding to the standard deviation of the node voltage according to the actual voltage of each voltage node and the rated voltage corresponding to each voltage node.
Optionally, the determining module 303 is configured to:
inputting the evaluation index value of each evaluation index and the weight of each evaluation index in a plurality of evaluation indexes corresponding to each power distribution model matrix into a reliability evaluation function to obtain an evaluation value corresponding to each power distribution model matrix, wherein the reliability evaluation function is as follows:
wherein x isiIndex value, ω, representing the i-th reliability evaluation indexiA weight coefficient indicating the i-th reliability evaluation index, p is a positive integer, and f (x) indicates the evaluation value of the reliability evaluation function.
Optionally, the first obtaining module 301 is configured to:
generating a preset number of distribution model matrixes, wherein the number of rows of each distribution model matrix is one row, and the total column number of each distribution model matrix is used for representing the number of the electric valves;
obtaining power distribution model matrixes corresponding to a plurality of power distribution schemes meeting constraint conditions from the preset number of power distribution model matrixes, wherein the constraint conditions comprise:
in the distribution scheme corresponding to the distribution model matrix, the load capacity of the distribution cabinet of each distribution cabinet is smaller than the rated load capacity of the distribution cabinet, and the average load rate of the distribution cabinets is within a preset threshold range, wherein the average load rate of the distribution cabinets is the sum of the proportion of the load capacity of the distribution cabinet of each distribution cabinet in the rated load capacity of the distribution cabinet divided by the number of the distribution cabinets.
Optionally, the optimization module 304 is configured to:
determining a first power distribution model matrix with the minimum evaluation value;
updating operation is carried out for preset times, and each updating operation comprises the following steps: updating element values in each power distribution model matrix except the first power distribution model matrix; judging whether each updated power distribution model matrix meets preset conditions or not, and if the power distribution model matrix which does not meet the preset conditions exists, replacing the power distribution model matrix which does not meet the preset conditions one by using a randomly generated power distribution model matrix which meets the preset conditions to obtain a plurality of second power distribution model matrices; and determining a new first power distribution model matrix with the minimum evaluation value from the first power distribution model matrix and the plurality of second power distribution model matrices.
Optionally, the optimization module 304 is further configured to:
inputting the element values in other power distribution model matrixes into a position updating formula to obtain an updated power distribution model matrix, wherein the position updating formula is as follows:
wherein, Xm t+1Representing the element value of the mth power distribution model matrix at the tth generation, L (lambda) is a Levier flight random search path, alpha represents the step control quantity,
is a dot product.
Optionally, the optimization module 304 is further configured to:
obtaining a numerical value corresponding to each power distribution model matrix in the plurality of updated power distribution model matrices;
and comparing the numerical value with a preset finding probability, if the numerical value is smaller than the finding probability, meeting a preset condition, and if the numerical value is larger than the finding probability, not meeting the preset condition.
It will be understood by those skilled in the art that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by a program instructing relevant hardware, where the program may be stored in a computer-readable storage medium, and the computer-readable storage medium may be a read-only memory, a magnetic or optical disk, and the like. For example, the power distribution method of the electrically operated valve of the present invention may be executed by a computer device, and the power distribution device of the electrically operated valve of the present invention may also be a computer device.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. A method of distributing power to electrically operated valves, the method comprising:
the method comprises the steps that a plurality of power distribution model matrixes are obtained, each power distribution model matrix corresponds to a power distribution scheme, and each element value of each power distribution model matrix is used for representing the serial number of a power distribution cabinet which is distributed to an electric valve corresponding to the element for power distribution;
for each power distribution model matrix, obtaining an evaluation index value of each evaluation index in a plurality of evaluation indexes corresponding to the power distribution model matrix;
obtaining an evaluation value corresponding to each power distribution model matrix according to the weight of each evaluation index and the evaluation index value thereof;
optimizing values of elements in the plurality of power distribution model matrices based on evaluation values of the plurality of power distribution model matrices;
and selecting the power distribution model matrix with the minimum evaluation value from the plurality of optimized power distribution model matrices as a power distribution scheme of the electric valve.
2. The method according to claim 1, wherein the evaluation index includes: the method for obtaining the evaluation index values of the plurality of evaluation indexes corresponding to the distribution model matrix comprises the following steps of:
obtaining an evaluation index value corresponding to the average power failure frequency according to the power failure times of all the electric valves in a preset time and the number of all the electric valves;
obtaining an evaluation index value corresponding to the average power failure time according to the power failure times of all the electric valves in a preset time, the power failure time of the electric valves and the number of the electric valves;
and obtaining an evaluation index value corresponding to the standard deviation of the node voltage according to the actual voltage of each voltage node and the rated voltage corresponding to each voltage node.
3. The method according to claim 1, wherein obtaining the evaluation value corresponding to each power distribution model matrix according to the weight of each evaluation index and the evaluation index value thereof comprises:
inputting an evaluation index value of each evaluation index in a plurality of evaluation indexes corresponding to each power distribution model matrix and a weight of each evaluation index into a reliability evaluation function to obtain an evaluation value corresponding to each power distribution model matrix, wherein the reliability evaluation function is as follows:
wherein x isiIndex value, ω, representing the i-th reliability evaluation indexiA weight coefficient indicating the i-th reliability evaluation index, p is a positive integer, and f (x) indicates the evaluation value of the reliability evaluation function.
4. The method of claim 1, wherein the obtaining a plurality of power distribution model matrices comprises:
generating a preset number of distribution model matrixes, wherein the number of rows of each distribution model matrix is one row, and the total column number of each distribution model matrix is used for representing the number of the electric valves;
obtaining distribution model matrixes corresponding to a plurality of distribution schemes meeting constraint conditions from the distribution model matrixes with the preset number, wherein the constraint conditions comprise:
in the distribution scheme corresponding to the distribution model matrix, the load of the distribution cabinet of each distribution cabinet is smaller than the rated load of the distribution cabinet, and the average load rate of the distribution cabinets is within a preset threshold range, wherein the average load rate of the distribution cabinets is the sum of the proportion of the load of the distribution cabinet of each distribution cabinet in the rated load of the distribution cabinet divided by the number of the distribution cabinets.
5. The method of claim 1, wherein optimizing values of elements in the plurality of power distribution model matrices based on the evaluation values of the plurality of power distribution model matrices comprises:
determining a first power distribution model matrix with the minimum evaluation value;
updating operation is carried out for preset times, and each updating operation comprises the following steps: updating element values in each power distribution model matrix except the first power distribution model matrix; judging whether each updated power distribution model matrix meets preset conditions or not, and if the power distribution model matrix which does not meet the preset conditions exists, replacing the power distribution model matrix which does not meet the preset conditions one by using a randomly generated power distribution model matrix which meets the preset conditions to obtain a plurality of second power distribution model matrices; and determining a new first power distribution model matrix with the minimum evaluation value from the first power distribution model matrix and the plurality of second power distribution model matrices.
6. The method of claim 5, wherein updating the values of the elements in the other power distribution model matrix than the first power distribution model matrix comprises:
inputting element values in other power distribution model matrixes into a position updating formula to obtain an updated power distribution model matrix, wherein the position updating formula is as follows:
wherein, Xm t+1Representing the element value of the mth power distribution model matrix at the time of the t iteration, wherein L (lambda) is a Levier flight random search path, alpha represents a step control quantity,
is a dot product.
7. The method of claim 5, wherein determining whether each of the plurality of updated distribution model matrices meets a predetermined condition comprises:
obtaining a numerical value corresponding to each power distribution model matrix in the plurality of updated power distribution model matrices;
and comparing the numerical value with a preset finding probability, if the numerical value is smaller than the finding probability, meeting a preset condition, and if the numerical value is larger than the finding probability, not meeting the preset condition.
8. An electrical distribution apparatus for electrically operated valves, the apparatus comprising:
the system comprises a first acquisition module, a second acquisition module and a control module, wherein the first acquisition module is used for acquiring a plurality of power distribution model matrixes, each power distribution model matrix corresponds to one power distribution scheme, and each element value of the power distribution model matrix is used for representing the serial number of a power distribution cabinet which is distributed to an electric valve corresponding to the element for power distribution;
the second acquisition module is used for acquiring the evaluation index value of each evaluation index in the plurality of evaluation indexes corresponding to each power distribution model matrix;
the determining module is used for obtaining an evaluation value corresponding to each power distribution model matrix according to the weight of each evaluation index and the evaluation index value thereof;
an optimization module for optimizing the values of the elements in the plurality of power distribution model matrices based on the evaluation values of the plurality of power distribution model matrices;
and the selection module is used for selecting the power distribution model matrix with the minimum evaluation value from the plurality of optimized power distribution model matrices to serve as a power distribution scheme of the electric valve.
9. The apparatus of claim 8, wherein the evaluation index comprises: the second acquisition module is used for:
obtaining an evaluation index value corresponding to the average power failure frequency according to the power failure times of all the electric valves in a preset time and the number of all the electric valves;
obtaining an evaluation index value corresponding to the average power failure time according to the power failure times of all the electric valves in a preset time, the power failure time of the electric valves and the number of the electric valves;
and obtaining an evaluation index value corresponding to the standard deviation of the node voltage according to the actual voltage of each voltage node and the rated voltage corresponding to each voltage node.
10. The apparatus of claim 8, wherein the determining module is configured to:
inputting an evaluation index value of each evaluation index in a plurality of evaluation indexes corresponding to each power distribution model matrix and a weight of each evaluation index into a reliability evaluation function to obtain an evaluation value corresponding to each power distribution model matrix, wherein the reliability evaluation function is as follows:
wherein x isiIndex value, ω, representing the i-th reliability evaluation indexiA weight coefficient indicating the i-th reliability evaluation index, p is a positive integer, and f (x) indicates the evaluation value of the reliability evaluation function.
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