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Multi-voltage-level maintenance plan optimization method and device based on risk overlapping degree

A technology with multiple voltage levels and maintenance plans, applied in computing, instrumentation, data processing applications, etc., and can solve problems such as unconsidered risk overlap

Active Publication Date: 2019-07-26
STATE GRID SHANDONG ELECTRIC POWER +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In order to solve the problem that the risk overlap degree is not considered in the maintenance plan, the present invention proposes a multi-voltage level maintenance plan optimization method and device based on the risk overlap degree, so that the preparation of the maintenance plan can minimize the risk overlap degree and realize multiple voltage levels Collaborative optimization of maintenance plan

Method used

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  • Multi-voltage-level maintenance plan optimization method and device based on risk overlapping degree
  • Multi-voltage-level maintenance plan optimization method and device based on risk overlapping degree
  • Multi-voltage-level maintenance plan optimization method and device based on risk overlapping degree

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Embodiment 1

[0055] Such as figure 1 As shown, in the technical solution of the present invention, a multi-voltage level maintenance plan optimization method based on risk overlap includes:

[0056] S1, define and construct the risk overlap index, and construct the objective function of maintenance plan optimization according to the risk overlap degree, power outage loss load caused by maintenance, and daily maintenance workload;

[0057] S2. Using the unchangeable maintenance application time, the simultaneity of maintenance work, the mutual exclusion of maintenance work, and safety check as constraints, the minimum value of the objective function is solved by artificial fish swarm algorithm.

[0058] Before the step S1, it also includes: establishing a characteristic data table through a relational database. The feature data table includes: power outage equipment data table, maintenance application form, power outage equipment impact object table, object power supply collection table, p...

Embodiment 2

[0098] like figure 2 As shown, step S2 in the multi-voltage level maintenance plan optimization method based on risk overlap in the present invention specifically includes:

[0099] S21, set the power outage start time variable of each maintenance application in the maintenance plan of the current month As an independent variable, using the unchangeable maintenance application time, the simultaneity of maintenance work, the mutual exclusion of maintenance work, and safety checks as constraints, set the perception distance ν, the maximum moving step size step, the congestion factor δ, and the maximum attempt times n try , the maximum number of iterations n Gen ;

[0100] S22, initialize the population and randomly generate N f artificial fish, that is, N f A maintenance plan arrangement scheme, calculate the food concentration of each artificial fish in the initial population, that is, the value of the objective function F, select the first minimum value of the objective...

Embodiment 3

[0116] like image 3 As shown, the present invention also provides a multi-voltage level maintenance plan optimization device based on risk overlap, including:

[0117] The definition and construction module 101 defines and constructs the risk overlap index, and constructs the objective function of the maintenance plan optimization according to the risk overlap degree, the power outage loss load caused by maintenance, and the daily maintenance workload;

[0118] The calculation and solving module 102 uses the unchangeable maintenance application time, the simultaneity of maintenance work, the mutual exclusion of maintenance work, and safety check as constraints, and solves the minimum value of the objective function through artificial fish swarm algorithm.

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Abstract

The invention provides a multi-voltage-level maintenance plan optimization method and device based on risk overlapping degree, which comprises the following steps of: defining and constructing a riskoverlapping degree index, and constructing an objective function of maintenance plan optimization according to the risk overlapping degree, maintenance-caused power failure loss load capacity and daily maintenance workload; and utilizing constraint conditions, solving the minimum value of the objective function through an artificial fish swarm algorithm. The invention further provides a multi-voltage-level maintenance plan optimization device based on the risk overlapping degree. In the compilation of the maintenance plans, the risk superposition caused to the same object when multiple power-off work is carried out at the same time is considered, so that the compilation of the maintenance plans realizes the minimization of the risk overlapping degree, and the collaborative optimization ofthe maintenance plans with multiple voltage levels is realized. The invention also defines a risk overlapping degree concept, and designs a risk overlapping index capable of quantifying the risk overlapping level in the maintenance plan.

Description

technical field [0001] The present invention relates to a method for optimizing a maintenance plan, in particular to a method and device for optimizing a multi-voltage level maintenance plan based on risk overlap. Background technique [0002] The optimization decision of maintenance plan is a structural optimization problem of power system dispatching operation, which has an important impact on the safe and stable operation of the power system. In most areas, the maintenance plans for 220kV lines and above busbars of power grids are checked and arranged by provincial dispatching agencies, and the maintenance plans for 220kV main transformers and 110kV and below are compiled by prefectural and municipal dispatching agencies according to their own maintenance needs and power grid operating conditions. During the spring inspection and autumn inspection, there are as many as hundreds of monthly maintenance applications, and each power outage application is submitted by a work a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q50/06G06Q10/06
CPCG06Q50/06G06Q10/0635Y04S10/50
Inventor 董新李莉于光波李嫣然刘红霞贾玉健巩晓静高峰李晓琦沈倩李广
Owner STATE GRID SHANDONG ELECTRIC POWER
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