Title :
A novel ZVT three-phase inverter with coupled inductors
Author :
Choi, Jae-Young ; Boroyevich, Dushan ; Lee, Fred C.
Author_Institution :
Bradley Dept. of Electr. & Comput. Eng., Virginia Polytech. Inst. & State Univ., Blacksburg, VA, USA
Abstract :
This paper proposes a novel zero-voltage transition (ZVT) topology applied to a three-phase inverter. This topology, including only two auxiliary switches, can achieve the zero-voltage turn-on of main switches as well as the zero-current turn-off of auxiliary switches. The modified space-vector modulation (SVM) is introduced to make the zero voltage turn-on possible in any switching condition. The simulation and test results show the improved switching characteristics and the reduced losses compared to the hard-switching and the conventional ZVT with two switches in three-phase inverters
Keywords :
inductors; invertors; losses; switching circuits; ZVT three-phase inverter; auxiliary switches; coupled inductors; hard-switching; modified space-vector modulation; reduced losses; simulation; zero-current turn-off; zero-voltage transition; zero-voltage turn-on; Circuit topology; Coupling circuits; Inductors; Inverters; Power electronics; Stress; Support vector machines; Switches; Switching circuits; Zero voltage switching;
Conference_Titel :
Power Electronics Specialists Conference, 1999. PESC 99. 30th Annual IEEE
Conference_Location :
Charleston, SC
Print_ISBN :
0-7803-5421-4
DOI :
10.1109/PESC.1999.785629
