Active power distribution network multi-region division optimization method based on MOEA/D

Abstract

The invention relates to an active power distribution network multi-region division optimization method based on MOEA / D. The method can comprise the following steps that S1, an active power distribution network multi-region division optimization model is established, specifically, an objective function and constraint conditions are established, the objective function is minF (x) = [f1 (x), f2 (x),-f3 (x) and-f4 (x)], f1 (x) represents the intra-region coupling degree, f2 (x) represents the inter-region coupling degree, f3 (x) represents the reactive power balance degree, and f4 (x) represents the reactive power balance degree; f4 (x) represents the active balance degree; and S2, solving the target function through an MOEA / D algorithm to obtain optimal region division. According to the method, the region division optimization model of the four indexes of the intra-region coupling degree, the inter-region coupling degree, the reactive balance degree and the active balance degree is established, so that reasonable division of the active power distribution network region can be well realized, certain practicability is realized, each index value can be close to the optimal value, falling into a local optimal solution is avoided, and the method is suitable for large-scale popularization and application. And the time and the system memory required by iteration are reduced.

Description

technical field [0001] The invention relates to the field of power supply, in particular to a MOEA / D-based multi-area division optimization method for an active distribution network. Background technique [0002] With the increasing electricity consumption, the distribution network, with the support of science and technology, combines traditional operation and information technology to continuously upgrade and transform. This has greatly improved my country's distribution network in terms of safety and economy, thereby providing more stable, reliable, and efficient power resources and promoting the development of related power companies. And the power enterprise is a key backbone enterprise related to national security and the lifeline of the national economy, and a reasonable division of the distribution network area is a necessary prerequisite to ensure the safety and economic operation of the distribution network. [0003] In addition, effective control and optimal dispa...

AI Technical Summary

Problems solved by technology

[0005] At present, the indicators for regional division are relatively single, and there is a lack of systematic theoretical basis and fixed performance indicators in the comprehensive consideration of active distribution network planning research.

There are even regions that are divided according to geographical location or administrative area. Although this method is simple and intuitive, the division is too rough and not suitable for subsequent analysis, control and scheduling optimization

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