Title :
A novel scheme of propulsion system using soft-switched high frequency AC-AC converter for electric vehicle
Author :
Xianmin, Ma ; Quanshi, Chen
Author_Institution :
Dept. of Automotive Eng., Tsinghua Univ., Beijing, China
Abstract :
A novel propulsion system scheme using a soft-switched high frequency AC-AC converter for an electric vehicle is proposed in this paper. The system consists of three parts: high frequency inverter, high frequency transformer and soft-switched high frequency AC-AC converter. The DC voltage of battery firstly is inverted into 20 kHz high frequency AC voltage, which is boosted and isolated by transformer, and then the output voltage of the transformer is served as voltage source to feed the AC-AC converter for driving the motor. Owing to using zero voltage switching technique, the propulsion system has advantages of high efficiency, high energy density, small volume and light weight
Keywords :
AC-AC power convertors; electric propulsion; electric vehicles; switching circuits; DC voltage inversion; electric vehicle; high efficiency; high energy density; high frequency AC voltage; high frequency inverter; high frequency transformer; propulsion system; soft-switched high frequency AC-AC converter; voltage boosting; zero voltage switching; AC motors; Analog-digital conversion; Batteries; DC motors; Electric vehicles; Feeds; Frequency conversion; Inverters; Propulsion; Zero voltage switching;
Conference_Titel :
Electrical Machines and Systems, 2001. ICEMS 2001. Proceedings of the Fifth International Conference on
Conference_Location :
Shenyang
Print_ISBN :
7-5062-5115-9
DOI :
10.1109/ICEMS.2001.970720
