基于混沌优化算法的PSS和直流调制的协调优化  

Coordination and Optimization of PSS and HVDC Modulations Using Chaotic Optimization Algorithm

作　　者：郑希云[1] 李兴源[1] 王渝红[1] 

机构地区：[1]四川大学电气信息学院,成都610065

出　　处：《电工技术学报》2010年第5期170-175,共6页Transactions of China Electrotechnical Society

基　　金：国家科技支撑计划(2008BAA13B01);国家电网公司科技资助项目

摘　　要：为解决交直流系统中直流调制之间,以及直流调制和PSS之间可能存在的不稳定的相互作用,本文将混沌优化算法应用于包含多馈入直流输电系统的交/直流互联电力系统,进行各直流调制和电力系统稳定器(PSS)之间的协调控制研究。该算法将直流调制和PSS的参数调节问题被转化为基于Lozi映射的混沌优化算法的优化问题,在全局协调的控制方式下增强整个系统对交流系统机电振荡的阻尼。并以中国南方电网的网络为实例说明了该方法的有效性、鲁棒性及其优越性。In order to solve instability the interaction among the various DC-modulation and between DC-modulation and PSS in AC/DC system,a chaotic optimization algorithm（COA） is applied to integrated AC/DC hybrid power system in which the multi-infeed DC power transmission system is included,and the research on coordination controls between the HVDC modulations and PSS is investigated in this paper.Parameters tuning problem of the HVDC modulations and PSS is converted to an optimization problem which is solved by a chaotic optimization algorithm based on Lozi map,Thus under global coordination the damping of the whole system to the electromechanical oscillations in the AC system is enhanced.Taking the planned power network in the South Power Grid for example,the effectiveness,robustness and superiority of the presented method are verified.

关 键 词：混沌优化 Lozi映射 直流调制 PSS 非线性最优化 功率振荡 电力系统稳定性 

分 类 号：TM712[电气工程—电力系统及自动化]