Two-Phase Motor Drive Systems with Z-Source Inverter and Hybrid PWM

DOS SANTOS JR, EUZELI CIPRIANO; PACAS, JOSÉ MARIO; MOLINA, MARCELO GUSTAVO

Atlanta, Georgia

Congreso; IEEE Energy Conversion Congress and Exposition 2010; 2010

IEEE Power Electronics Society and Industry Applications Society

In this paper is proposed two drive systems for a symmetrical two-phase motor using Z-source inverter. The modulation technique applied to proposed systems combine the theory of space-vector PWM with the ease of implementation of a triangular-comparison PWM. Such strategy reduces the e®ort of algorithm calculation. The introduction of the distribution ratio in this technique, allows the development of a systematic approach for implementation of either conventional or any modified vector strategies, even including the shoot-through zero vectors inherent of Z-source inverter. Also, the paper proposes a simple software algorithm to generate the hybrid modulation of Z-source inverter with the introduction of the "virtual" dc-link zero point. Simulated and experimental results demonstrate the validity of the proposed systems.