Energy Recovery for the Main and Auxiliary Sources of Electric Vehicles

Energies

Min Ye¹  Shengjie Jiao¹ 

[1] Key Laboratory for Highway Construction Technology and Equipment of Ministry of Education, Chang’an University, Xi’an 710064, China; E-Mail:

关键词: energy recovery;    main and auxiliary sources;    electric vehicle;    DC/DC converter;    electrical circuit;   

DOI  :  10.3390/en3101673

来源: mdpi

【 摘 要 】

Based on the traditional regenerative braking electrical circuit, a novel energy recovery system for the main and auxiliary sources of electric vehicles (EVs) has been developed to improve their energy efficiency. The electrical circuit topology is presented in detail. During regenerative braking, the recovered mechanical energy is stored in both the main source and the auxiliary source at the same time. The mathematical model of the proposed system is derived step by step. Combining the merits and defects of H₂ optimal control and H_∞ robust control, a H₂/H_∞ controller is designed to guarantee both the system performance and robust stability. The perfect match between the simulated and experimental results validates the notion that the proposed novel energy recovery system is both feasible and effective, as more energy is recovered than that with the traditional energy recovery systems, in which recovered energy is stored only in the main source.

【 授权许可】

CC BY   
© 2010 by the authors; licensee MDPI, Basel, Switzerland.