基于自适应遗传算法的移相器优化计算

Optimal phase shifter calculation based on adaptive genetic algorithm

为解决"电力输电网潮流输送不均衡"等问题,将作为柔性交流输电技术之一的移相器应用到电网优化中。在分析其原理及作用的基础上,对移相器的电网优化选址问题进行了研究,提出了一种"能够反映移相器调控效果并解决电网中部分断面的重载、过载问题,提高电网送电安全性"的选址优化方法,该方法采用基于潮流裕度的初选和基于通道利用率的定址两步进行优化。对IEEE57节点电网典型运行方式下的移相器进行了计算。研究结果表明,所述的指标和方法是高效和合理的,也同时表明了移相器对系统可靠性具有重大的改善作用。

In order to solve the problems of unbalanced power transmission on grids, one of flexible AC transmission system： phase shifter was investigated. On the basis of analyzing its principles and applications, the site selection of phase shifter optimization was researched. The method for site selection based on resolving over-load or heavy-load of power grid was put forward, this method was divided by two steps ： pre- liminary screening based on power flow margin and site selection based on utilizing rate of transmission lines. The analysis result of site selec- tion optimization for IEEE57 bus system under typical operating mode shows that the proposed index and method are highly efficient and val- id, and shows the system reliability can be greatly improved.