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有源电力滤波器切换跟踪与优化控制

DOI: 10.13195/j.kzyjc.2013.0339, PP. 1599-1604

Keywords: 有源电力滤波器,电流跟踪控制,切换系统,二次稳定,优化

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Abstract:

为了提高有源电力滤波器的动态性能,基于切换系统理论研究其电流跟踪控制问题.首先,建立系统的切换动态模型,根据切换系统理论和空间电压矢量法证明二次稳定性,并设计相应的切换控制序列.考虑到控制器的数字化实现,建立系统的离散切换系统模型,提出在采样周期内使系统性能最优的切换控制策略.仿真结果表明,该控制策略能实现对指令电流的精确跟踪,降低功率器件的开关频率,从而有效地提高系统的动态性能.

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