A Non-Isolated Multiport Converter for E-Vehicle Applications

Abstract

The necessity to reduce the risks in the environmental pollution has paved way for the options that help in minimizing it. Electric vehicle is one such option and the most evolving means in this field. The EV system in order to achieve a high peak requires multiple sources to be integration. So, a bidirectional buck boost DC to DC converter with four port is realized in this research for integration of many sources instead of using dedicated converter. This non isolated multi-port converter with compact size, minimum number of components and simple controlstructure enhances converter reliability and makes it more economical. This converter has the ability to accommodate energy sources with varying current and voltage characteristics. This converter has two input ports the DC supply & the Batteryas well as two output ports motor and auxiliary loads. This multi-port converter exhibits bidirectional power flow capability during the regenerative braking of an E-Vehicle. The converter employs three switches to control the flow of power. The article aims in studying the performance of the controller structure used in regulating the flow in power of energy sources and analyses its dynamic as well as the steady state characteristics. The design is validated using MATLAB Simulink tool to ensure its performance.