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Synthesis and Implementation of a Multi-Port DC/DC Converter for Hybrid Electric Vehicles

  • Santhosh, T. K. ;
  • Natarajan, K. ;
  • Govindaraju, C.
  • Received : 2015.01.21
  • Accepted : 2015.04.20
  • Published : 2015.09.20

Abstract

A non-isolated Multiple Input Converter (MIC) with an input port, two storage ports and a load port is proposed. The synthesis of the proposed four port converter with its switch realization is presented. A steady state analysis of each operating mode with a small-signal model is derived, and a stability analysis is done. A mode selection controller is proposed to automatically choose a specific operating mode based on the voltage levels of the different source and storage units. In addition, a voltage control loop is used to regulate the output voltage. A 200W prototype is built with a TMS320F28027 DSP controller to test the feasibility of the operating modes. Simulation and experimental results show the ability of the proposed converter to handle multiple inputs either individually or simultaneously.

Keywords

DSP;Hybrid Electric Vehicle;Multiple Input Converter;Stateflow model;Synthesis;Ultracapacitor

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