Heat transport characteristics of a peak shaving solar power tower station

doi:10.1016/j.renene.2020.04.099

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	Heat transport characteristics of a peak shaving solar power tower station
	Zhang, Qiang 1; Cao, Donghong 1; Jiang, Kaijun 1; Du, Xiaoze 1,2; Xu, Ershu 1
刊名	Renewable Energy
	2020-08-01
卷号	156 页码:493-508
关键词	Heat storage Heat transfer Solar energy Three term control systems Water levels Characteristic curve Control strategies Generating system Peak regulation capacity Solar power tower Step disturbances System level simulation Thermal transport
ISSN号	09601481
DOI	10.1016/j.renene.2020.04.099
英文摘要	The study investigates the heat transport characteristics of the solar power tower station with thermal energy storage, which serves as a peak regulation source in the grid. A 50 MW power tower plant is chosen as object. The systematic dynamic models of essential sub-systems are developed. The model is matched with control strategy that regulates the water level in the evaporator efficiently. System-level simulation is conducted under different disturbances. For a short period disturbance, the thermal transport characteristics of system parameters during the heat transport process under four-step disturbances have been analyzed. Variation of heat distribution among different heat exchangers and instability of water level are discovered. The steam generating system has significant thermal inertia compared with that of steam turbine. For a long period of disturbance, the peak shaving characteristic curve of the plant operated under peak regulation mode is presented. It takes 1 h to load-up and 2 h to off-load between the basic load and designed load. Dangerous working condition is found during offload. The impact of different ramp rates is revealed. PID control strategy is more sensitive to an 8% ramp rate. The results could provide references for peak regulation capacity of a solar power tower station. © 2020 Elsevier Ltd
WOS研究方向	Science & Technology - Other Topics ; Energy & Fuels
语种	英语
出版者	Elsevier Ltd
WOS记录号	WOS:000540378500041
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/115469]
专题	兰州理工大学能源与动力工程学院新能源学院
作者单位	1.Key Laboratory of Condition Monitoring and Control for Power Plant Equipment (North China Electric Power University), Ministry of Education, Beijing; 102206, China; 2.School of Energy and Power Engineering, Lanzhou University of Technology, Lanzhou; 730050, China
推荐引用方式 GB/T 7714	Zhang, Qiang,Cao, Donghong,Jiang, Kaijun,et al. Heat transport characteristics of a peak shaving solar power tower station[J]. Renewable Energy,2020,156:493-508.
APA	Zhang, Qiang,Cao, Donghong,Jiang, Kaijun,Du, Xiaoze,&Xu, Ershu.(2020).Heat transport characteristics of a peak shaving solar power tower station.Renewable Energy,156,493-508.
MLA	Zhang, Qiang,et al."Heat transport characteristics of a peak shaving solar power tower station".Renewable Energy 156(2020):493-508.