Title: Performance analysis of quadratic buck converter for electric vehicle battery charging applications
Authors: Yadlapalli Ravindranath Tagore; Anuradha Kotapati; Rajani Kandipati
Addresses: Department of Electrical and Electronics Engineering, R.V.R. & J.C. College of Engineering, Chowdavaram, Guntur, 522019, Andhra Pradesh, India ' Department of Electrical and Electronics Engineering, VNR Vignana Jyothi Institute of Engineering and Technology, Bachupally, Hyderabad, 500090, Telangana State, India ' Department of Electrical and Electronics Engineering, Vignans Lara Institute of Technology and Science, Vadlamudi, Guntur, 522213, Andhra Pradesh, India
Abstract: This paper presents the analysis and design of a quadratic buck converter for electric vehicle applications where large voltage conversion ratios are required i.e., 48V/12 V at 50 kHz. The converter performance is analysed with digital-average current mode and the sliding mode current control strategies. In sliding-mode current control, the sliding parameters are finely tuned to achieve robustness against parameter variations. The simulation results of the above mentioned control strategies are compared for both line as well as load regulations. The efficiency analysis of the converter is also presented at different input and load conditions.
Keywords: SMCC; sliding mode current controller; ACMC; average current-mode controller.
International Journal of Electric and Hybrid Vehicles, 2019 Vol.11 No.4, pp.346 - 357
Received: 09 Apr 2019
Accepted: 11 Jun 2019
Published online: 27 Sep 2019 *