改进随机试验法用于电力系统无功优化

Reactive Power Optimization in Power System Based on Improved Random Testing Method

随机试验法具有过程简单、限制条件少、方便处理离散问题、全局搜索效果好及依概率收敛等优点,但传统方法存在计算量大、耗时多等缺点,因而不便于处理电力系统无功优化问题。改进随机试验法把每批次的抽样次数和抽样区间适当减小,以达到减少计算量和计算时间的目的,从而实现试验法在电力系统无功优化控制中的应用。通过对IEEE-14节点系统的算例分析,证明了方法的可行性。

Random testing method has the advantages of concision, simple constraints, facilitation in the process of discrete problems,global search effect and convergence in probability effect,etc. However,there are some shortcomings in traditional method such as large computation ,timeconsuming and other shortcomings. Therefore it is not easy to deal with the problems of reactive power optimization. Improved random test method appropriately reduces each sampling frequency and sampling interval due to the calculation method to reduce the amount is the purpose of computing time to achieve test reactive power optimization in power system control applications due to reduce computation and computing time, so as to achieve test method in reactive power optimization of control applications. Through a numerical analysis of IEEE-14 node system,this paper verifies the feasibility of the method.