Study of a Novel Four-Switch Three-Phase Inverter

• Main Authors: Chun-Hung Chen, 陳俊宏
• Other Authors: Maoh-Chin Jiang
• Format: Others
• Language: zh-TW
• Published: 2008
• Online Access: http://ndltd.ncl.edu.tw/handle/88070340764126702697

碩士 === 國立宜蘭大學 === 電機工程學系碩士班 === 96 === A novel four-switch three-phase inverter is designed and implemented. A low cost four main switches and four auxiliary switches power converter configuration of the three-phase inverter is proposed. All main switches in the three-phase inverter operate at zero voltage switching (ZVS) turn on and turn off. Also, the auxiliary switches operate at zero current switching (ZCS) turn on and turn off. Moreover, the reduction in the number of main switches can also increase the reliability, since the control circuits and the auxiliary circuits are there by reduced to two sets. Therefore, the proposed power converter configuration achieves the low cost and high efficiency inverter without changing devices rate. The principle of operation, computer simulation and experimental results of the four-switch three-phase inverter, rated 200W and operated at 40kHz are provided to demonstrate the performance. Keywords: Zero-Voltage Switching (ZVS), Zero-Current Switching (ZCS), Four-Switch Three-Phase Inverter (FSTPI)