Title:
SOFC SYSTEM CONTROL METHOD AND DEVICE, AND FCU
Document Type and Number:
WIPO Patent Application WO/2022/001981
Kind Code:
A1
Abstract:
The invention provides an SOFC system control method and device and an FCU. The method comprises steps of obtaining a mass flow of fuel according to a current target value needed by an SOFC stack and a molar ratio determined based on detected natural gas fuel components; obtaining a mass flow of water based on the fuel mass flow and a water-carbon ratio meeting the reforming requirement; controlling the opening degree of a second control valve according to the fuel mass flow, and controlling the opening degree of a third control valve according to the water mass flow; and detecting the temperature of the SOFC stack in real time, and controlling the opening degree of a first control valve according to the temperature of the SOFC stack. In this solution, natural gas fuel components are detected and their molar ratio is determined. The needed fuel mass flow and water mass flow are calculated according to the molar ratio of the natural gas fuel components, the current target value and the water-carbon ratio, so that the opening degrees of the respective control valves of the fuel and deionized water are controlled, and the opening degree of the control valve corresponding to air is controlled according to the temperature of the SOFC stack to operation optimization of the SOFC system and increase the conversion rate of the natural gas fuel.
Inventors:
YU CHAO (CN)
SHEN XUESONG (CN)
SHEN XUESONG (CN)
Application Number:
PCT/CN2021/102835
Publication Date:
January 06, 2022
Filing Date:
June 28, 2021
Export Citation:
Assignee:
CERES IP CO LTD (GB)
WEICHAI POWER CO LTD (CN)
WEICHAI POWER CO LTD (CN)
International Classes:
H01M8/0432; H01M8/0444; H01M8/04746; H01M8/04828; H01M8/124
Foreign References:
| US20190393525A1 | 2019-12-26 | |||
| US20180358640A1 | 2018-12-13 | |||
| US20160104906A1 | 2016-04-14 |
Attorney, Agent or Firm:
CHANG TSI & PARTNERS (CN)
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