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오연준(WU Yan-Jun),정영국(Young-Gook Jung),임영철(Young-Cheol Lim) 전력전자학회 2011 전력전자학술대회 논문집 Vol.2011 No.7
The paper proposes a close loop control algorithm for Z-source inverter. The algorithm is realized by PWM duty ratio control in order to improve the output voltage to it’s desired level. The controller consist of the output voltage PID controller and DC input voltage P controller. Using the DQ coordinate transformation simplify the controller design. The PSIM simulation results verify the validity by means of comparing the system with or without compensation and estimating if the system has output consistency function when ZSI’s load and input voltage value changing.