Title :
Soft switching space vector PWM inverter using a new quasi-parallel resonant DC link
Author :
Jung, Yong C. ; Liu, Hyo L. ; Cho, Guk C. ; Cho, Gyu H.
Author_Institution :
Dept. of Electr. Eng., Korea Adv. Inst. of Sci. & Technol., Taejon, South Korea
Abstract :
A soft switching quasi-parallel resonant DC-link (QPRDCL) inverter with improved PWM capability has been recently presented. The circuit has 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 a detailed analysis of the QPRDCL inverter is presented for resonant components design and inverter control. A space vector PWM (SVPWM), with optimal vector sequence, suitable for the QPRDCL inverter is also presented through comparisons of five different modified SVPWM techniques classified by their voltage vector sequences. The performance of the selected optimal SVPWM scheme is verified by experimental results
Keywords :
DC-AC power convertors; PWM invertors; bipolar transistor switches; control system analysis; control system synthesis; insulated gate bipolar transistors; optimal control; power bipolar transistors; power semiconductor switches; power system harmonics; resonant power convertors; switching circuits; voltage control; experiments; inverter control; optimal vector sequence; performance; quasi-parallel resonant DC link; resonant components design; soft switching; space vector PWM inverter; voltage regulation; voltage stress; voltage vector sequences; Capacitors; Inductors; Pulse width modulation inverters; RLC circuits; Resonance; Space technology; Space vector pulse width modulation; Stress; Switches; Voltage;
Conference_Titel :
Power Electronics Specialists Conference, 1995. PESC '95 Record., 26th Annual IEEE
Conference_Location :
Atlanta, GA
Print_ISBN :
0-7803-2730-6
DOI :
10.1109/PESC.1995.474928
