A multi-objective coordinated regulation method and system for medium-voltage substations

CN121710289BActive Publication Date: 2026-06-09POWER RES INST OF STATE GRID SHAANXI ELECTRIC POWER CO LTD +1
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Patent Information

Application Number
CN202610209061.1
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2026-02-13
Publication Date
2026-06-09
Estimated Expiration
2046-02-13

AI Technical Summary

Technical Problem

Traditional medium-voltage substation voltage control methods suffer from low regulation efficiency, unclear resource allocation sequence, and poor coordination of multi-level control, making it difficult to simultaneously achieve multiple objectives such as voltage qualification rate, minimum network loss, and minimum number of equipment operations.

Method used

A multi-objective reactive power collaborative optimization model and Sobol's voltage-reactive power sensitivity analysis method are adopted to determine the action priority of voltage regulation resources. Through hierarchical coordination control, unified coordination between the substation and the feeder layer is achieved, and the resource call order is dynamically adjusted.

Benefits of technology

It improves voltage control accuracy and pass rate, reduces the number of voltage regulation resource calls by 30%-50%, reduces computational complexity, and enhances control real-time performance and system stability.

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Abstract

This invention discloses a multi-objective coordinated control method for medium-voltage substations, comprising the following steps: acquiring real-time operating data of the medium-voltage substation and feeder layer; establishing a multi-objective reactive power coordinated optimization model, defining the objective function and constraints of the multi-objective reactive power coordinated optimization model; determining the action priority of voltage regulation resources based on Sobol's voltage-reactive power sensitivity analysis method, executing hierarchical coordinated control of the substation and feeder layer, and dynamically adjusting the multi-objective reactive power coordinated optimization model according to real-time data. This invention also discloses a multi-objective coordinated control system for medium-voltage substations. This invention solves the technical problems of low regulation efficiency, unclear resource allocation order, and poor coordination of multi-level control in traditional control methods.
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Citation Information

Patent Citations

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