Power Control of a Bi-Directional DC-DC Converter used for Fuel-Cell Hybrid Electric Vehicles (FCHEVs)
Conference: Intelec 2013 - 35th International Telecommunications Energy Conference, SMART POWER AND EFFICIENCY
10/13/2013 - 10/17/2013 at Hamburg, Deutschland
Proceedings: Intelec 2013
Pages: 6Language: englishTyp: PDF
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Authors:
Pahlevaninezhad, Majid; Daneshpajooh, Hamid; Jain, Praveen (ECE Department, Queen’s University, Kingston, Ontario K7L 3N6, Canada)
Abstract:
This paper presents a bi-directional DC/DC converter used in hybrid electric vehicles. The converter operates as a full-bridge converter when the power transferred from the traction battery to the supercapacitor and performs as a pushpull converter when the power flow is in opposite direction. A new multi-structure control approach has been proposed, which is able to robustly control the converter in both power flow directions. The control structure can provide a very efficient power conversion between the two buses by controlling the phaseshift of the full-bridge converter in one direction and the dutyratio of the push-pull converter in the other power flow direction. Simulation results and experimental results demonstrate the superior performance of the proposed control system.