PWM整流器参数的多目标分层优化策略  

Stratified Multi-objective Optimization Strategy of Parameters in PWM Power Rectifier

作　　者：杜明星 魏克新 杜吉飞 

机构地区：[1]天津市复杂系统控制理论及应用重点实验室,天津300384

出　　处：《化工自动化及仪表》2013年第8期1000-1003,共4页Control and Instruments in Chemical Industry

基　　金：国家自然科学基金资助项目(50977063);天津市科技支撑计划重点项目(09ZCKFGX01800);天津理工大学育苗基金资助项目(LGYM201103)

摘　　要：针对变流器的参数整定问题,提出将单位功率因数、总谐波失真及绝缘栅双极型晶体管损耗等指标综合考虑的多目标优化策略,将系统参数分为3层,在满足上层条件的情况下确定下层参数的变化范围,其中对第二层参数运用评价函数法进行遗传算法优化,使各目标协调收敛并得出最优解,其所得结果与所选权重系数有关。最后通过实验验证了该方法的实用性。For the parameter adjustment of the converter,a multi-objective optimization strategy which comprehensively considers the power factor,THD and IGBT loss was proposed to have system parameters divided into three layers so that the range of parameters of the next layer can be determined on the base of meeting the conditions of upper layer; and the second-layer parameters can be optimized with the evaluation function method of genetic algorithm optimization so as to implement coordinative convergence of the various objectives and to reach an optimal solution which related to the selected weighting factor.The experimental results verify the practicability of this method.

关 键 词：变流器参数整定 多目标优化 评价函数 遗传算法 权重系数 

分 类 号：TM46[电气工程—电器]