Title

Adaptive Control Of A Solid Oxide Fuel Cell Ultra-Capacitor Hybrid System

Keywords

Adaptive control; fuel utilization; hybrid energy; robust control; solid oxide fuel cell (SOFC); transient; ultra-capacitor

Abstract

Solid oxide fuel cells (SOFCs) offer a number of advantages beyond those of most other fuel cells. However, like other fuel cells, rapid load following is difficult, and can lead to fuel starvation and consequently fuel cell damage. Mitigating fuel starvation and improving load following capabilities are conflicting control objectives. However, the issue can be addressed by the hybridization of the system with an energy storage device. In this paper, a steady-state property of the SOFC, combined with a current regulation strategy, is used to manage transient fuel utilization and thereby address fuel starvation. Meanwhile, an overall system strategy is employed to manage energy sharing in the hybrid system for load following as well as for maintaining the state-of-charge of the energy storage device. This work presents an adaptive control algorithm that uses online parameter estimation to update the controller. The control design is validated on a hardware-in-the-loop setup and experimental results are provided. © 2012 IEEE.

Publication Date

3-11-2013

Publication Title

IEEE Transactions on Control Systems Technology

Volume

21

Issue

2

Number of Pages

372-383

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1109/TCST.2011.2181514

Socpus ID

84874605238 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84874605238

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