Title: Research on energy management of hybrid power system in fuel cell vehicles

Authors: Meilan Zhou; Weijie Liu; Yu Zhang; Jiaming Wang

Addresses: School of Electrical and Electronic Engineering, Harbin University of Science and Technology, Harbin, 150080, China ' School of Electrical and Electronic Engineering, Harbin University of Science and Technology, Harbin, 150080, China ' School of Electrical and Electronic Engineering, Harbin University of Science and Technology, Harbin, 150080, China ' School of Electrical and Electronic Engineering, Harbin University of Science and Technology, Harbin, 150080, China

Abstract: To solve the problems of short service life of battery and we study the hybrid power system composed of fuel cell (FC), battery and unidirectional DC/DC converter. In order to achieve a reasonable energy distribution and reduce the hydrogen consumption of the fuel cell, we propose an optimised control strategy based on the Pontryagin's minimum principle (PMP). We also propose a fuzzy optimal control strategy based on fuzzy control. This is optimised by changing the parameters in the membership function with the teaching-learning-based-optimisation (TLBO). Based on the simulation software, we build a simulation model to realise the real-time simulation of the two control strategies. The simulation results show that compared to fuel cell powered alone, the hydrogen consumption is reduced by 10.1% when using the fuzzy optimisation control strategy, and the hydrogen consumption is reduced by 12.7% when using the optimal control strategy based on PMP.

Keywords: hybrid power system; fuzzy optimisation control; PMP; Pontryagin's minimum principle; hydrogen consumption.

DOI: 10.1504/IJEHV.2022.125247

International Journal of Electric and Hybrid Vehicles, 2022 Vol.14 No.1/2, pp.134 - 149

Received: 15 Apr 2020
Accepted: 16 Aug 2020
Published online: 05 Sep 2022 *

Full-text access for editors Full-text access for subscribers Purchase this article Comment on this article