Title :
Soft switching space vector PWM inverter using a new quasi-parallel resonant DC link
Author :
Jung, Yong C. ; Liu, Hyo I. ; Cho, Guk C. ; Cho, Gyu H.
Author_Institution :
Dept. of Electr. Eng., Korea Adv. Inst. of Sci. & Technol., Taejon, South Korea
fDate :
5/1/1996 12:00:00 AM
Abstract :
A soft switching quasi-parallel resonant DC-link (QPRDCL) inverter with improved PWM capability has been recently presented. The circuit has the minimum voltage stress of the devices and provides the flexibility of selecting the on/off instants of the resonant link, resulting in improved PWM capability. In this paper, the operational principles and the detailed analysis of the QPRDCL inverter are presented for the resonant components design and the inverter control. An SVPWM with optimal vector sequence suitable for the QPRDCL inverter is also presented through the comparisons among five different modified space vector PWM (SVPWM) techniques classified by the voltage vector sequences. The performance of the selected optimal SVPWM is verified by the experimental results
Keywords :
DC-AC power convertors; PWM invertors; bipolar transistor switches; insulated gate bipolar transistors; power bipolar transistors; power semiconductor switches; resonant power convertors; switching circuits; PWM capability; inverter control; on/off instants; optimal vector sequence; performance; power IGBT switches; quasi-parallel resonant DC link; resonant components design; soft switching space vector PWM inverter; voltage stress; voltage vector sequences; Capacitors; Diodes; Inductors; Pulse width modulation inverters; Resonance; Resonant inverters; Space vector pulse width modulation; Stress; Switches; Voltage;
Journal_Title :
Power Electronics, IEEE Transactions on
