Power Module Bridge Type Auxiliary Resonant AC Link Snubber-Assisted Three-Phase Soft Switching Inverter

This paper presents a novel three-phase power module bridge type auxiliary resonant AC link snubber for the three-phase voltage-fed sinwave soft switching PWM inverter operating under specific instantaneous space voltage vector modulation. The operating principle of this resonant snubber is described for current source load model during one switching period, along with its design approach based on the simulation data. The performance evaluations of space vector modulation three-phase sinewave soft switching inverter with a new three-phase active auxiliary resonant AC link snubber are discussed as compared with those of three-phase voltage source-fed sinewave hard switching PWM inverter with a standard space voltage vector modulation strategy. The power loss analysis and conventional efficiency estimation of three-phase soft switching PWM inverter using IGBT modules are carried out including all the conduction power losses based upon the measured v-i characteristics of IGBT and its antiparallel diode as well as their switching losses.

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Cite this article

[IEEE Style]

H. Iyomori, S. Nagai, M. Yoshida, E. Hiraki, M. Nakaoka, "Power Module Bridge Type Auxiliary Resonant AC Link Snubber-Assisted Three-Phase Soft Switching Inverter," Journal of Power Electronics, vol. 4, no. 2, pp. 77-86, 2004. DOI: 10.6113/JPE.2004.4.2.77.

[ACM Style]

Hisashi Iyomori, Shin-ichiro Nagai, Masanobu Yoshida, Eiji Hiraki, and Mutsuo Nakaoka. 2004. Power Module Bridge Type Auxiliary Resonant AC Link Snubber-Assisted Three-Phase Soft Switching Inverter. Journal of Power Electronics, 4, 2, (2004), 77-86. DOI: 10.6113/JPE.2004.4.2.77.