电力系统及其自动化学报2011，Vol.23Issue(1)：138-144,7.
考虑静态电压稳定性的多目标无功优化
Multi-objective Reactive Power Optimization with Static Valtage Stability
杨晓萍 1张强 2薛斌 1王磊3
作者信息
- 1. 西安理工大学水利水电学院,西安,710048
- 2. 佛山电力设计院有限公司,佛山,528200
- 3. 西北电力设计院,西安,710075
- 折叠
摘要
Abstract
The genetic algorithm has three disadvantages:early maturity, poor ability of local optimization, and slow convergence rate. In order to overcome these problems,some modified methods of reactive power optimization to improve the static voltage stability of power system were proposed. In this paper,fitness function was modified by using simulated annealing theory. Genetic algorithm crossover and mutation strategy were improved by using adaptive algorithm. The tactics of elites to keep and mutation operation used tail-prevailing principle were adopted. The minimization of voltage stability margin index based on the generalized Tellegen's theorem was taken as one of objective functions. Compared with the other methods on IEEE 14-bus, IEEE 30-bus and IEEE 57-bus system,the optimization results show that the proposed algorithm optimization has better convergence property than simple genetic algorithm,which accelerated the algorithm convergence speed,and effectively improve the voltage stability margin of load buses while reducing the power loss.关键词
电力系统/无功优化/静态电压稳定/裕度指标/改进遗传算法Key words
power system/ reactive power optimization/ static voltage stability/ margin index/ modified genetic algorithm分类
信息技术与安全科学引用本文复制引用
杨晓萍,张强,薛斌,王磊..考虑静态电压稳定性的多目标无功优化[J].电力系统及其自动化学报,2011,23(1):138-144,7.
