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A Complex Repetitive Controller Based on the Generalized Delayed Signal Cancelation Method
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DOI：10.1109/TIE.2018.2847661.png)
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Abstract
En 中文
In this paper, a generic complex repetitive controller (nk + m RC, k is an element of Z), based on the inverse transfer function of the generalized delayed signal cancelation transformation is proposed. The presented complex controller can be designed for regulating different positive-and negative-sequence harmonic components through a spacevector error signal, with improved response time as compared to traditional repetitive controllers. An evaluation of the proposed control scheme stability, based on phase margin, Nyquist diagram, and sensitivity function is presented. The effects of the controller parameters on the system's stability and also on its dynamic response are shown and allow the definition of some control design guidelines. Experimental results are presented to validate the theoretical assumptions through applying the proposed controller for regulating the currents in a three-phase active power filter.
Keywords:
Active power filter (APF)
complex controller
harmonic compensation
repetitive control (RC)
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