基于改进差分和声搜索算法的FACTS设备的多目标优化配置  

Multi-objective Optimal Allocation of FACTS Devices Based on Improved Differential Evolution Harmony Search Algorithm

作　　者：张涛[1] 徐雪琴[1] 冉华军[1] 

机构地区：[1]三峡大学电气与新能源学院

出　　处：《中国电机工程学报》2018年第3期727-734,共8页Proceedings of the CSEE

基　　金：国家自然科学基金项目(51307097)~~

摘　　要：柔性交流输电（flexible AC transmission system,FACTS）设备能有效实现对电力系统参数及网络结构的灵活控制,以降低功率损耗,提高系统稳定性。由于FACTS设备成本较高,因此,建立综合考虑其配置费用和系统运行性能的多目标优化模型具有重要研究意义。该文以系统有功网损最小、设备补偿费用最低、系统电压稳定性最好为目标函数,建立了晶闸管控制串联电容器和静止同步补偿器的多目标优化配置模型。提出了一种改进差分和声搜索算法求解该非线性多目标优化问题,研究结果表明,提出的改进算法比多目标自适应和声搜索算法获得的解集更优,且得到的最优折衷解,在较低的补偿费用下具有更好的电压稳定性和更低的有功损耗。该文提出的多目标优化模型和求解算法能有效指导实际电力系统中FACTS设备的优化配置,具有良好的应用前景。Flexible AC transmission system（FACTS） device can effectively control the power system parameters and network structure for reducing power loss and improving system stability. Due to the higher cost of FACTS devices, it has great significance to establish a multi-objective optimization model which takes into account its configuration cost and system performance. A multi-objective optimization model of minimize the real power losses, voltage stability index, compensation cost was established to identify the optimal location and size of thyristor controlled series capacitor（TCSC） and static synchronous compensator（STATCOM） in this paper. An improved differential and harmony search algorithm was proposed to solve the nonlinear multi-objective optimization problem. The results show that a better solution set can be obtained by using the improved multi-objective harmony search algorithm. And the optimal compromise solution has better voltage stability and lower active power loss at lower compensation cost. The proposed multi-objective optimization model and improved algorithm can effectively direct the optimal allocation of FACTS equipment in practical power system, which has a good application prospect.

关 键 词：柔性交流输电 TCSC 静止同步补偿器 PARETO解集 选址定容 和声搜索算法 

分 类 号：TM46[电气工程—电器]