Robust H2/Hinfinity Control for Regenerative Braking of Electric Vehicles

Robust H₂/H_infin control is presented for regenerative braking of electric vehicles (EV). Combining the merit and defect of H₂ optimal control and H_infin robust control, the hybrid controller is designed to guarantee both the system performance and the robust stability. The advantage of the proposed controller lies in that it can attenuate the parameter perturbation and nonlinear uncertainty. The proposed algorithms are implemented using the software of DSP TMS320. The comparative simulation and experiment results show that the dynamic performance and robust stability of the proposed scheme is superior to the traditional PI control method, and the electric vehicle recycles more kinetic energy during regenerative braking.