最优切负荷控制问题的并行模式搜索算法  

Parallel Pattern Search Algorithm for Optimal Load-shedding Control Problem

作　　者：姚国强[1] 江涵[1] 江全元[1] 

机构地区：[1]浙江大学电气工程学院,浙江省杭州市310027

出　　处：《电力系统自动化》2012年第4期11-15,共5页Automation of Electric Power Systems

基　　金：国家高技术研究发展计划(863计划)资助项目(2009AA05Z221);国家自然科学基金资助项目(50977082);教育部新世纪优秀人才支持计划资助项目(NCET-08-0489);浙江省自然科学基金资助项目(R1080089)~~

摘　　要：针对含暂态稳定约束的最优切负荷控制问题,采用并行模式搜索算法进行有效求解。该方法是一种无梯度优化方法,避免了复杂模型下暂态稳定约束关于控制量的灵敏度或梯度计算困难的问题,算法实现简便,基本没有收敛性问题。对于要反复进行的暂态稳定计算,调用电力系统仿真软件(PSS/E)进行动态仿真,实现了优化算法与现有成熟商业软件的结合,提高了仿真模型和方法的灵活性,增加了结果的可信度。同时,并行模式搜索的框架实现了暂态稳定计算任务的合理分配,提高了算法搜索的效率。算法在3个不同规模的算例上进行了测试,测试结果表明,该算法可以可靠地给出切负荷控制策略。In view of the optimal load-shedding control with transient stability constraints,a parallel pattern search algorithm is adopted to effectively solve this problem.As a gradient-free optimization algorithm,this method can avoid the difficulty in calculating the sensitivity or gradient of transient stability constraints on the control variables with complicated models.It is easy to realize without the convergence problem.For the repeated calculation of transient stability,the power system simulator for engineering is used for dynamic simulation,thus combining the simulation software available with the optimal algorithm,increasing the flexibility of simulation models and methods,as well as the reliability of the results.Meanwhile,the mission of transient stability calculation is rationally allocated by the framework of parallel search,increasing the search speed of the algorithm.The test results of three cases of different scales show that the algorithm can reliably give the load-shedding strategy.

关 键 词：最优切负荷 暂态稳定 并行模式搜索 无梯度优化 

分 类 号：TM74[电气工程—电力系统及自动化] TM714