A unified carrier-based modulation method for direct matrix converter. - Chengzhu Piao; John Y. Hung (EIT, 2015)

A simplified and unified space vector PWM algorithm for multi-level diode clamped VSI. - Chengzhu Piao; John Y. Hung (ICIT, 2015)

A simplified control strategy to balance dc-link capacitor voltage for multi-level diode clamped VSI based on discontinuous SVPWM. - Chengzhu Piao; John Y. Hung (ISIE, 2015)