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恒压恒频PWM变换器nk±m次谐波重复控制策略

, PP. 95-100

Keywords: 内模原理,重复控制,nk±,m次谐波,PWM变换器

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Abstract:

提出了一种nk±m次谐波重复控制器用于提高恒压恒频PWM变换器系统的性能。该重复控制器可针对不同场合的需求,赋予n和m以不同的数值,从而实现对任一指定的nk±m次谐波的无静差跟踪或扰动抑制。与常规重复控制器相比,该重复控制器具有时间延迟小、收敛速度快、数字实现所需的内存单元少、表达式通用等优点。最后,给出了一个将nk±m次谐波重复控制器应用于带三相整流负载的三相PWM逆变器的例子,实验结果证明了其有效性。

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