Test design of integrated gasification solid oxide fuel cell （IG-SOFC） grid-connection technology

doi:10.19799/j.cnki.2095-4239.2021.0100

Abstract

Abstract:

Integrated gasification solid oxide fuel cell (IG-SOFC) power generation system, which uses feed gas obtained from coal gasification (syngas) to achieve near-zero emissions, is a promising clean-coal power generation technology, especially given China's coal-based resource temperament. The paper firstly proposes a test design scheme of the IG-SOFC grid-connected power generation system. Then a SOFC grid-connected power generation test platform is built, which could be applied to the operation mode of both "grid-connected test mode" and "grid-connected power generation mode." The feasibility of the design plan is then validated using the experimental results of a self-developed 5 kW SOFC tower module with syngas as the feed gas. The results show that when the SOFC tower module's generation power reaches 4.5 kW, the grid-connected generation power is 4.25 kW, the power generation efficiency of the stack module is 55.1%, the power generation efficiency of the system is 52.0%, and the inversion efficiency is approximately 94.5%. Finally, the long-period performance stability of the system is verified by the 168 h long-cycle test under "grid-connected test mode."

Key words: integrated gasification solid oxide fuel cell, power generation system, grid- connection, test platform, syngas

CLC Number:

TQ 152

Pingping LI, Shanshan CHEN, Lulu ZHAO, Mingliang SHI, Yan HUANG, Chufu LI. Test design of integrated gasification solid oxide fuel cell （IG-SOFC） grid-connection technology[J]. Energy Storage Science and Technology, 2021, 10(6): 2039-2045.

Figures/Tables 9

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项目	参数
单堆个数	4
堆塔工作电压范围/V	160～260
堆塔工作电流范围/A	0～30
堆塔工作功率范围/kW	0～5