电网技术2016，Vol.40Issue(9)：2871-2880,10.DOI:10.13335/j.1000-3673.pst.2016.09.041
提高暂态电压安全性的快投电容器组控制定值优化
Optimization of Control Settings for Fast Switching of Capacitor Banks to Enhance Transient Voltage Security
欧阳逸风 1刘明波1
作者信息
- 1. 华南理工大学 电力学院，广东省 广州市 510640
- 折叠
摘要
Abstract
Fast switching of capacitor banks is an economical and effective emergency control means to deal with transient voltage security problem in engineering. But its control settings are usually set based on trial-and-error simulation. This paper establishes amixed-integer dynamic optimization model considering multiple contingencies to depict the problem of tuning control settings, and the optimal range of these control settings are obtained by inverse derivation from the optimal capacitors’ outputs corresponding to each contingency. To solve this mixed-integer dynamic optimization problem, the convex relaxation method is applied to transform it into a continuous dynamic optimization problem, meantime, introducing the penalty function to gradually force these relaxed variables into integer values during the optimization process. Then, the multiple shooting method is used to transform this dynamic optimization problem into a nonlinear programming model, which can be solved by the reduced space sequential quadratic programming algorithm. Finally, in terms of decoupling of contingencies and time intervals, a two-level parallel framework is designed to improve computational efficiency. Furthermore, simulation results on IEEE 10-machine 39-bus test system and a real 165-machine 1003-bus provincial system demonstrate the effectiveness of the proposed method.关键词
暂态电压安全/快投电容器组/控制定值优化/混合整数动态优化/并行计算Key words
transient voltage security/fast switching of capacitor banks/optimization of control settings/mixed-integer dynamic optimization/parallel computation分类
信息技术与安全科学引用本文复制引用
欧阳逸风,刘明波..提高暂态电压安全性的快投电容器组控制定值优化[J].电网技术,2016,40(9):2871-2880,10.
