Research on Response Characteristics and Control Strategy of the Supercritical Carbon Dioxide Power Cycle

With the development of GEN-IV nuclear reactor technology, the supercritical carbon dioxide (SCO<sub>2</sub>) Brayton cycle has attracted wide attention for its simple structure and high efficiency. Correspondingly, a series of research has been carried out to study the characteristics o...

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Autores principales:	Chunhui Dai, Ping Song, Can Ma, Kelong Zhang, Wei Zheng, Lie Chen, Xiaojie Guo, Yuansheng Lin, Zhiqiang Qiu
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	supercritical carbon dioxide Brayton cycle Simulink disturbance control strategy Chemical technology TP1-1185 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/e4108edbb8a14cd5b234efb7862a3587
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spelling	oai:doaj.org-article:e4108edbb8a14cd5b234efb7862a35872021-11-25T18:50:38ZResearch on Response Characteristics and Control Strategy of the Supercritical Carbon Dioxide Power Cycle10.3390/pr91119432227-9717https://doaj.org/article/e4108edbb8a14cd5b234efb7862a35872021-10-01T00:00:00Zhttps://www.mdpi.com/2227-9717/9/11/1943https://doaj.org/toc/2227-9717With the development of GEN-IV nuclear reactor technology, the supercritical carbon dioxide (SCO<sub>2</sub>) Brayton cycle has attracted wide attention for its simple structure and high efficiency. Correspondingly, a series of research has been carried out to study the characteristics of the cycle. The control flexibility of the power generation system has rarely been studied. This paper carried out a dynamic performance of the 20 MW-SCO<sub>2</sub> recompression cycle based on the Simulink software. In the simulation, the response characteristics of the system main parameters under the disturbances of cooling water temperature, split ratio, main compressor inlet temperature and pressure were analyzed. The results show that the turbine inlet temperature is most affected by the disturbances, with a re-stabilization time of 2500–3000 s. According to the response characteristics of the system after being disturbed, this study proposed a stable operation control scheme. The scheme is coordinated with the main compressor inlet temperature and pressure control, recompressor outlet pressure control, turbine inlet temperature control and turbine load control. Finally, the control strategy is verified with the disturbance of reduced split ratio, and the results show that the control effect is good.Chunhui DaiPing SongCan MaKelong ZhangWei ZhengLie ChenXiaojie GuoYuansheng LinZhiqiang QiuMDPI AGarticlesupercritical carbon dioxide Brayton cycleSimulinkdisturbancecontrol strategyChemical technologyTP1-1185ChemistryQD1-999ENProcesses, Vol 9, Iss 1943, p 1943 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	supercritical carbon dioxide Brayton cycle Simulink disturbance control strategy Chemical technology TP1-1185 Chemistry QD1-999
spellingShingle	supercritical carbon dioxide Brayton cycle Simulink disturbance control strategy Chemical technology TP1-1185 Chemistry QD1-999 Chunhui Dai Ping Song Can Ma Kelong Zhang Wei Zheng Lie Chen Xiaojie Guo Yuansheng Lin Zhiqiang Qiu Research on Response Characteristics and Control Strategy of the Supercritical Carbon Dioxide Power Cycle
description	With the development of GEN-IV nuclear reactor technology, the supercritical carbon dioxide (SCO<sub>2</sub>) Brayton cycle has attracted wide attention for its simple structure and high efficiency. Correspondingly, a series of research has been carried out to study the characteristics of the cycle. The control flexibility of the power generation system has rarely been studied. This paper carried out a dynamic performance of the 20 MW-SCO<sub>2</sub> recompression cycle based on the Simulink software. In the simulation, the response characteristics of the system main parameters under the disturbances of cooling water temperature, split ratio, main compressor inlet temperature and pressure were analyzed. The results show that the turbine inlet temperature is most affected by the disturbances, with a re-stabilization time of 2500–3000 s. According to the response characteristics of the system after being disturbed, this study proposed a stable operation control scheme. The scheme is coordinated with the main compressor inlet temperature and pressure control, recompressor outlet pressure control, turbine inlet temperature control and turbine load control. Finally, the control strategy is verified with the disturbance of reduced split ratio, and the results show that the control effect is good.
format	article
author	Chunhui Dai Ping Song Can Ma Kelong Zhang Wei Zheng Lie Chen Xiaojie Guo Yuansheng Lin Zhiqiang Qiu
author_facet	Chunhui Dai Ping Song Can Ma Kelong Zhang Wei Zheng Lie Chen Xiaojie Guo Yuansheng Lin Zhiqiang Qiu
author_sort	Chunhui Dai
title	Research on Response Characteristics and Control Strategy of the Supercritical Carbon Dioxide Power Cycle
title_short	Research on Response Characteristics and Control Strategy of the Supercritical Carbon Dioxide Power Cycle
title_full	Research on Response Characteristics and Control Strategy of the Supercritical Carbon Dioxide Power Cycle
title_fullStr	Research on Response Characteristics and Control Strategy of the Supercritical Carbon Dioxide Power Cycle
title_full_unstemmed	Research on Response Characteristics and Control Strategy of the Supercritical Carbon Dioxide Power Cycle
title_sort	research on response characteristics and control strategy of the supercritical carbon dioxide power cycle
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/e4108edbb8a14cd5b234efb7862a3587
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Research on Response Characteristics and Control Strategy of the Supercritical Carbon Dioxide Power Cycle

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