Dynamic modeling and hierarchical control of a concentrated solar power plant with direct molten salt storage

Lingxiang Yao, Xianyong Xiao, Yang Wang, Xiaoming Yao and Zhicheng Ma

Energy, 2022, vol. 252, issue C

Abstract: Concentrated solar power (CSP) plant with direct molten salt storage plays an important role in future commercial projects for its high flexibility and reliability. To fully understand its thermodynamic performances and electrical characteristics under various meteorological conditions and load demands, an accurate dynamic model is essential. Although some effort has been devoted to this topic, a complete control system for the plant can hardly be found in the literature. The lack of such information has made the modeling and the analysis of the CSP plant difficult in various applications. This study establishes a detailed CSP plant model and proposes a complete two-level hierarchical control system for a real-life 50 MW linear Fresnel CSP plant located in northwest China. The effectiveness of the developed model has been validated with the real operation data from both static and dynamic perspectives. Then, the plant dynamic behaviors and the performances of the control system under various disturbances are analyzed in detail. The comparison results indicate that the proposed control system shows satisfactory performance (errors within ±1.5%p0 and ±0.5%Pe0) and can effectively inhibit influences of various disturbances. Therefore, the developed model with the proposed control system can serve as a powerful tool for CSP-related research.

Keywords: Concentrated solar power; Hierarchical control; Dynamic modeling; Direct thermal energy storage; Dynamic behaviors (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (4)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:252:y:2022:i:c:s0360544222009021

DOI: 10.1016/j.energy.2022.123999

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