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Inverter control for solving sulfur contamination problem for solid oxide fuel cells in coal-fired power plants

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2 Author(s)
Hongwei Gao ; Electr. & Comput. Eng. Dept., Montana State Univ., Bozeman, MT, USA ; Yan Yang

This paper proposes a new method to raise the power of the Solid Oxide Fuel Cell (SOFC) stacks in a coal-fired SOFC-based power plant to solve the sulfur contamination problem of the SOFC stacks. Rather than rapidly raise the power demand from the DC link and therefore the SOFC stack in a single step, the method raises the power demand from the DC link gradually in multi-steps. As a result, a much reduced DC link capacitor can be used to supply the transient power and hold the DC link voltage, which makes the power-raising based sulfur contamination solution more feasible. The method has been verified with simulation and experimental work.

Published in:

Electrical Machines and Systems (ICEMS), 2011 International Conference on

Date of Conference:

20-23 Aug. 2011

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