基于优化控制策略的矩阵式变换器研究  

On Based on Optimazition Control Strategy Matrix Converters

作　　者：杨苹[1] 周少雄[1] 郑木桂[1] 吕学瑜[1] 

机构地区：[1]华南理工大学广东省绿色能源技术重点实验室,广东广州510640

出　　处：《控制工程》2011年第1期87-90,共4页Control Engineering of China

基　　金：国家基金重点项目(60534040);广东省科技计划项目(2005A10505005;2007B010400080)

摘　　要：矩阵式变换器是具有优良控制性能的新型电力变换器。在分析系统结构的基础上,以方便、可靠实现控制策略为目标,优化了双电压策略,并采用四步换流策略,实现对矩阵式变换器的优化控制。优化的双电压策略简化了开关组合,减少了算法在实现上的计算量,从而降低了控制算法的复杂性,提高了系统的实时性。四步换流策略实现了安全优质换流,增加安全系数。最后通过仿真分析与实验研究,验证了理论分析的正确性与优越性。因此,矩阵式变换器优越的输入/输出性能,可以应用于风力发电系统的交流励磁,最大程度地获得风能,实现风能的有效利用。The control problemof matrix power converter with excellent control performances is discussed.Based on the analysis of isoptimized the system structure,in order to realize the control stategy conveniently and reliably,the double line-to-line voltage control strategy is optimized.The four-step commutation strategy is adopted,to realize the optimal control of the matrix converter.Optimal double line-to-line voltage strategy simplifies switching combinations,steadily reduces computational load,so that reduces the complexity of control algorithm,then enhances the efficiency and real-time of the program.The four-step commutation strategy realizes safe and high-qualitied commutation,and improves the safety factor.Finally,through the study of the simulation and experiment,the results verified the correctness and superiority of the theoretical analysis.Because of the predominant input and output performance,matrix converter could be applied to AC excitation in wind power generation system to capture wind energy,and realize the effective utilization of wind energy.

关 键 词：矩阵式变换器 双电压控制 四步换流 优化 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]