Abstract

This paper presents an iterative learning control (ILC) scheme in discrete time-domain for a DC-AC inverter system used in AC power sources. The proposed controller minimizes periodic errors caused by both linear load and nonlinear load, such as rectifier load. A PWM inverter control system has been constructed to validate the efficacy of the proposed control scheme. Simulation results show good steady-state response, dynamic response and low total harmonic distortions (THD). The experimental validation of the proposed scheme for linear load condition is presented in this paper, and it shows the effectiveness of the proposed control scheme.

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