Control Implementation of BKY Converter for EV Applications

Publications

Control Implementation of BKY Converter for EV Applications

Year : 2024

Publisher : Institute of Electrical and Electronics Engineers Inc.

Source Title : 2024 IEEE 4th International Conference on Sustainable Energy and Future Electric Transportation, SEFET 2024

Document Type :

Abstract

This paper proposes BKY converter, which is made to run in continuous conduction mode during both the charging and discharging cycles for low power EV applications. An analysis is conducted on the converter’s dynamic behavior, and an approach to control is put forth to manage the power transfer between the traction system and battery in an electric vehicle. The suggested converter is designed using an extracted small-signal model. A significant ripple in the detected current causes switching instability in the current-mode control approaches at low duty ratios. A computation delay occurs when the controller is implemented in the microcontroller. The control algorithm’s design takes this into account. A theoretical framework for current and voltage loop gain transfer functions are created using the realistic parameters of a BKY converter. Further, dynamic performance under load variations is explained and validated by simulations.