Title :
Effect of parasitic capacitance of power device on output voltage deviation during switching dead-time in voltage-fed PWM inverter
Author :
Yamamoto, Kichiro ; Shinohara, Katsuji ; Ohga, Hiroyuki
Author_Institution :
Dept. of Electr. & Electron. Eng., Kagoshima Univ., Japan
Abstract :
The PWM inverter, which is operated at a high carrier frequency, is influenced by the switching dead-time. In this paper, the effect of the parasitic capacitance of the power device on the voltage deviation during switching dead-time is investigated and a numerical method to analyze the output voltage deviation in consideration of the parasitic capacitance of the power device is proposed. Furthermore, this method is applied to a permanent-magnet AC servo motor drive system and the voltage deviation and the phase current waveforms are calculated. Finally, the calculated results are compared with the experimental results in order to confirm the validity of the analysis
Keywords :
DC-AC power convertors; PWM invertors; bipolar transistor switches; capacitance; harmonic distortion; insulated gate bipolar transistors; power bipolar transistors; power semiconductor switches; power system harmonics; switching circuits; output voltage deviation; permanent-magnet AC servo motor drive system; phase current waveforms; power IGBT switches; power device parasitic capacitance; switching dead-time; voltage-fed PWM inverter; AC motors; Frequency; Insulated gate bipolar transistors; Parasitic capacitance; Power engineering and energy; Pulse width modulation; Pulse width modulation inverters; Servomechanisms; Stators; Voltage;
Conference_Titel :
Power Conversion Conference - Nagaoka 1997., Proceedings of the
Conference_Location :
Nagaoka
Print_ISBN :
0-7803-3823-5
DOI :
10.1109/PCCON.1997.638315
