电力系统优化控制策略的鲁棒性评估  

Robustness Evaluation of Optimal Control Strategies for Electric Power Systems

作　　者：韩哲[1] 刘健[2] 张志华[2] 

机构地区：[1]西安科技大学电气与控制工程学院,陕西省西安市710054 [2]陕西电力科学研究院,陕西省西安市710054

出　　处：《电网技术》2016年第4期1204-1208,共5页Power System Technology

基　　金：国家电网公司科技项目(5226KY11003800)~~

摘　　要：为了对电力系统优化控制策略的鲁棒性进行评估,综合考虑控制变量的可实现精度和状态变量的不确定性,建立了对控制策略的鲁棒性进行评估的指标,论述了单性能指标优化问题和多性能指标优化问题的控制策略鲁棒性满足要求的判断方法,提出一种基于抽样优化的控制策略鲁棒性评估方法,讨论了在若干控制策略的鲁棒性均满足要求或均不满足要求情况下进一步对各个控制策略的鲁棒性优劣进行比较的方法。以IEEE 30节点无功优化算例为例,对采用优化方法得出5个候选控制策略进行了鲁棒性评估,结果表明所提建议方法是可行的。In order to evaluate robustness of optimal control strategies for electric power systems, an index of robustness evaluation considering control accuracy and uncertainty of state variables was established. Methodologies for identifying whether robustness was satisfied for optimization problems with single objective function and multi-objective function were described respectively. An approach based on sampling optimization to evaluate robustness of control strategies was put forward. In case that robustness of several control strategies could meet or not meet requirements, method for comparing robustness of control strategies was suggested. Reactive power control problem for IEEE-30 system was used as example, where five candidate control strategies were obtained with reactive power optimization approach and their robustness was evaluated with the proposed method respectively to find out the best strategy. The results show that the proposed method is feasible.

关 键 词：优化 鲁棒性评估 抽样优化 控制 无功优化 

分 类 号：TM72[电气工程—电力系统及自动化]