Title :
Improved ZVT three-phase inverter with two auxiliary switches
Author :
Choi, Jae-Young ; Boroyevich, Dushan ; Lee, Fred C.
Author_Institution :
Center for Power Electron. Syst., Virginia Polytech. Inst. & State Univ., Blacksburg, VA, USA
fDate :
6/22/1905 12:00:00 AM
Abstract :
This paper proposes a novel strategy to improve the performance of the zero-voltage transition (ZVT) three-phase inverter with two auxiliary switches for electric vehicle driving systems. The proposed strategy minimizes the number of commutations with the operation of the minimum-loss space-vector modulation (SVM) as well as reduces the turn-on losses with the zero-voltage turn-on of all main switches. In addition, increased snubber capacitance is available, which reduces the turn-off losses of the main switches. The simulation, loss analysis, and experimental results show the improved performances of the proposed ZVT topology
Keywords :
capacitance; commutation; electric drives; electric vehicles; invertors; losses; snubbers; switching circuits; ZVT three-phase inverter; auxiliary switches; commutations minimisation; electric vehicle driving systems; loss analysis; minimum-loss space-vector modulation; simulation; snubber capacitance; turn-off losses reduction; turn-on losses reduction; zero-voltage turn-on; Analytical models; Capacitance; Electric vehicles; Inverters; Snubbers; Support vector machines; Switches; Switching circuits; Topology; Voltage;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 2000. APEC 2000. Fifteenth Annual IEEE
Conference_Location :
New Orleans, LA
Print_ISBN :
0-7803-5864-3
DOI :
10.1109/APEC.2000.822814
