High Efficiency Energy Conversion System for Decreaces in Electric Vehicle Battery Terminal Voltage
-
- Aoyama Kohei
- School of Engineering, Yokohama National University
-
- Motoi Naoki
- Graduate School of Maritime Sciences, Kobe University
-
- Tsuruta Yukinori
- School of Engineering, Yokohama National University
-
- Kawamura Atsuo
- School of Engineering, Yokohama National University
この論文をさがす
抄録
The powertrain of electric vehicles in the market has a problem in that its performance degrades because of fluctuations in battery voltage. In order to solve this problem, this paper proposes an energy conversion system to boost a part of the electric vehicle battery voltage. This system consists of the existing electric vehicle powertrain and a bi-directional isolated DC-DC converter called the dual active bridge (DAB). This system is able to compensate for battery voltage drops with high efficiency by using a small capacity DAB converter. In addition, a control method for the DAB converter is proposed. This control method achieves a better response to the transient state than conventional methods. The validity of the proposed system and its control method are confirmed by simulation and experiments. A high efficiency of about 99% is obtained from the experimental system prototype.
収録刊行物
-
- IEEJ Journal of Industry Applications
-
IEEJ Journal of Industry Applications 5 (1), 12-19, 2016
一般社団法人 電気学会