摘要电力系统全黑状态下的系统恢复称为黑启动，制定合理的黑启动方案能够加快系统的恢复进程，减少事故损失。恢复路径的优化是黑启动优化的关键步骤，最优恢复路径有利于加快电力系统的恢复速度。目前采用智能算法生成黑启动的恢复路径，但由于智能算法无法保证得到精确的最优解或者满足某个最优条件，所以由智能算法得到的黑启动恢复路径中的无效路径数量极大。为了提高种群中个体的质量，排除无效路径，进而提高算法收敛性能，本文研究了智能算法黑启动生成恢复路径的连通性检验方案，并在此基础上设计了一种基于根树分层简化模型的冗余支路删除算法。本文基于MATLAB采用IEEE系列标准系统参数进行了实例仿真，结果表明智能算法黑启动路径的连通性判断与冗余删除算法能提高黑启动路径寻优算法收敛性能。82937

毕业论文关键词 黑启动 路径优化 遗传算法 根树分层简化模型

毕业设计说明书外文摘要

Title   Power system restoration path intelligent optimization algorithm        to generate solutions to quickly determine the effectiveness of         the method

Abstract System restore all black condition of electric power system known as the black start, formulate reasonable black-start scheme can speed up the recovery process in the system, reduce accident loss。 Recovery path optimization is the key step in the black start optimization, the optimal return path is helpful to increase the recovery rate of power system。 Currently USES intelligent algorithm to generate the recovery of black start path, but the intelligent algorithm cannot guarantee the accurate optimal solutions or some optimum conditions to meet, so by the intelligent algorithm to get the number of invalid path in the black start of recovery path。 In order to improve the quality of the inpiduals in the population, eliminate invalid path, and thus improve the convergence of the algorithm, this paper studies the intelligent algorithm generated by black start to restore connectivity test scheme of the path, and on this basis, we design a simplified model based on root tree layers of redundant branch deletion algorithm。 Series of IEEE standard system parameters adopted in this paper, based on MATLAB for the example simulation, the results show that intelligent algorithm black-start path connectivity judgement and redundancy deletion algorithm can improve the black-start path optimization algorithm convergence。

Keywords  Black start  Path optimization  Genetic algorithm  Hierarchical tree simplified model

目   次

1  绪论 1

    1。1  研究背景与意义 1

    1。2  国内外研究现状 2

    1。3  本文主要研究内容 4

2  恢复路径智能优化方法 6

    2。1  智能优化方法的介绍 6

    2。2  恢复路径的遗传算法模式 8

3  恢复路径智能优化编码的有效性判断 10

    3。1  有效恢复路径编码 10

    3。2  路径有效性检验方法 12

    3。3  恢复路径校验的必要性分析 14

    3。4  小结