Control of a Solid Oxide Fuel Cell Power Plant in a Grid-Connected System
The fastest and yet most prudent ways of changing the output power level of a solid oxide fuel cell power plant connected to the ac-grid are explored. The operating state of the fuel cell power plant is examined in term of the concept of feasible operating area of a cell. The utilization factor of t...
| Main Authors: | , , |
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| Format: | Journal Article |
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IEEE Power Engineering Society
2007
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| Online Access: | http://hdl.handle.net/20.500.11937/19834 |
| _version_ | 1848750142597890048 |
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| author | Li, Y. Rajakaruna, Sumedha Choi, S. |
| author_facet | Li, Y. Rajakaruna, Sumedha Choi, S. |
| author_sort | Li, Y. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | The fastest and yet most prudent ways of changing the output power level of a solid oxide fuel cell power plant connected to the ac-grid are explored. The operating state of the fuel cell power plant is examined in term of the concept of feasible operating area of a cell. The utilization factor of the cell stack is maintained constant in steady-state by feeding natural gas to the fuel processor at a rate proportional to the current drawn from the stack. The fluctuations of the utilization factor in the transient state due to a change in operating power level can be constrained to the allowable range by strategically controlling the current drawn by the power conditioning unit. Based on measured variables and dynamic characteristics of the fuel processor, four strategies of controlling current are compared to arrive at the strategy that results in minimum transient time for a given power change. The proposed control schemes are verified through computer simulations. |
| first_indexed | 2025-11-14T07:32:08Z |
| format | Journal Article |
| id | curtin-20.500.11937-19834 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T07:32:08Z |
| publishDate | 2007 |
| publisher | IEEE Power Engineering Society |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-198342017-01-30T12:15:58Z Control of a Solid Oxide Fuel Cell Power Plant in a Grid-Connected System Li, Y. Rajakaruna, Sumedha Choi, S. fuel cell (FC) feasible operating area Distributed generation power flow control The fastest and yet most prudent ways of changing the output power level of a solid oxide fuel cell power plant connected to the ac-grid are explored. The operating state of the fuel cell power plant is examined in term of the concept of feasible operating area of a cell. The utilization factor of the cell stack is maintained constant in steady-state by feeding natural gas to the fuel processor at a rate proportional to the current drawn from the stack. The fluctuations of the utilization factor in the transient state due to a change in operating power level can be constrained to the allowable range by strategically controlling the current drawn by the power conditioning unit. Based on measured variables and dynamic characteristics of the fuel processor, four strategies of controlling current are compared to arrive at the strategy that results in minimum transient time for a given power change. The proposed control schemes are verified through computer simulations. 2007 Journal Article http://hdl.handle.net/20.500.11937/19834 IEEE Power Engineering Society fulltext |
| spellingShingle | fuel cell (FC) feasible operating area Distributed generation power flow control Li, Y. Rajakaruna, Sumedha Choi, S. Control of a Solid Oxide Fuel Cell Power Plant in a Grid-Connected System |
| title | Control of a Solid Oxide Fuel Cell Power Plant in a Grid-Connected System |
| title_full | Control of a Solid Oxide Fuel Cell Power Plant in a Grid-Connected System |
| title_fullStr | Control of a Solid Oxide Fuel Cell Power Plant in a Grid-Connected System |
| title_full_unstemmed | Control of a Solid Oxide Fuel Cell Power Plant in a Grid-Connected System |
| title_short | Control of a Solid Oxide Fuel Cell Power Plant in a Grid-Connected System |
| title_sort | control of a solid oxide fuel cell power plant in a grid-connected system |
| topic | fuel cell (FC) feasible operating area Distributed generation power flow control |
| url | http://hdl.handle.net/20.500.11937/19834 |