Modified boost converter for renewable energy powered battery charger

Abstract

In view of the tremendous electrification of transportation sector, development and management of an integrated charging unit has been under research focus for last few decades. Therefore, this paper deals with the development of an integrated battery charging unit in which a modified DC-DC boost converter has been proposed for electric vehicles (EVs). With a nominal number of components (one inductor, one capacitor, one diode, and three switches) in proposed converter, charging unit is suitable to charge the batteries in a wide voltage range. A simplified control scheme is also developed to regulate the output DC link voltage of proposed converter which is used to charge a connected battery during plug-in operation. Propulsion system is developed by using a three phase induction machine (as propulsion motor) of vehicle, which has been controlled by using indirect field-oriented scheme to ensure higher performance. Operation of the motor drive has been investigated during propulsion and regeneration operation. Complete system has been developed and investigated by using Matlab/Simulink.

Keywords

• Battery charger
• ; Boost converter
• Propulsion motor
• Electric vehicles

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