Convex Optimization of Speed and Energy Management System for Fuel Cell Hybrid Trains

Autor:	Jibrin, Rabee, Hillmansen, Stuart, Roberts, Clive, Zhao, Ning, Tian, Zhongbei
Rok vydání:	2021
Předmět:	Electrical Engineering and Systems Science - Systems and Control Mathematics - Optimization and Control
Druh dokumentu:	Working Paper
Popis:	We look into minimizing the hydrogen fuel consumption of hydrogen hybrid trains by optimizing their operation. The powertrain considered is a fuel cell charge-sustaining hybrid. Convex optimization is utilized to compute optimal speed and energy management trajectories. The barrier method is used to solve the optimization problems quickly on the order of tens of seconds for the entire journey. Simulations show a considerable reduction in fuel consumption when both trajectories -- speed and energy management -- are optimized concurrently within a single optimization problem in comparison to being optimized separately in a sequential manner -- optimizing energy management after optimizing speed. It is concluded that the concurrent method greatly benefits from its holistic powertrain knowledge while optimizing all trajectories together within a single optimization problem. Comment: submitted to IEEE VPPC 2021
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2109.13833 Zobrazit plný text záznamu View this record from Arxiv