Battery Powered LSB Converter Fed BLDC Drive System for Electric Vehicle Applications

Design, analysis and closed-loop control of a LCL switched boost (LSB) converter based battery powered BLDC drive employed in electric drive, is presented in the paper. The presented LSB converter in closed-loop is capable of maintaining a constant voltage at output irrespective of mechanical load connected at BLDC drive and it is also capable of controlling the speed of electric drive in EV by varying the reference voltage in the feed-forward path of the closed loop control. An extensive performance of presented BLDC drive employed in electric vehicle is studied and demonstrated through simulated results obtained in MATLAB/SIMULINK and the performance is tested.