Real-Time Control Based on a CAN-Bus of Hybrid Electrical Systems - September, 1st 2020

Discover the full article by Dr. Kréhi Serge Agbli, Mickaël Hilairet and Frédéric Gustin, extracted from the Special Issue Design, Diagnosis and Control and Social Acceptance of Battery, Solar Cell and Fuel Cell System and released on MDPI website.

Power management of a one-converter parallel structure with battery and supercapacitor is addressed in this paper. The controller is implemented on a DSP from a Microchip and uses a Controller Area Network (CAN) bus communication for data exchange. However, the low data transmission rate of the CAN bus data impacts the performances of regular power management strategies. This paper details an initial strategy with a charge sustaining mode for an application coupling a battery with supercapacitors, in which low performances have been witnessed due to the high sampling time of the CAN bus data. Therefore, a new strategy is proposed to tackle the sample time issue based on a depleting mode. Simulation and experimental results with a dsPIC33EP512MU810 DSP based on a 10 kW hybrid system proves the feasibility of the proposed approach.