热力发电2025，Vol.54Issue(9)：25-34,10.DOI:10.19666/j.rlfd.202412244
电制热熔盐储热发电系统的动态特性分析
Dynamic characteristics analysis of power-to-heat molten salt heat storage and power generation system
摘要
Abstract
The dynamic models of steam generation system and power generation system are developed to study the dynamic characteristics of power-to-heat molten salt heat storage and power generation system,and the reliability of the models is validated.The dynamic characteristics of the system are analyzed for the disturbance of molten salt work temperature,flowrate and steam valve opening.Moreover,the performance of the system in the load reduction transient process is investigated in the 100%THA～50%THA load interval.The results show that,the main steam temperature and reheat steam temperature respond quickly to the molten salt temperature disturbance,and their response is obviously faster than that of the unit load and main steam pressure.The molten salt flowrate disturbance has a significant effect on the unit load and main steam pressure,and the unit load increases by 12.44%and the main steam pressure increases by 1.18 MPa with 15%increase in molten salt flowrate.The main steam valve opening controls the main steam pressure and load fluctuation.With the addition of the control system,the maximum load reduction rate of the unit in the 100%THA～50%THA load interval is 14%Pe/min with the limiting condition of temperature deviation.关键词
电制热/熔盐储热/动态模型/动态特性/变负荷速率Key words
power-to-heat/molten salt heat storage/dynamic model/dynamic characteristics/load cycling rate引用本文复制引用
户雯婷,刘明,张顺奇,韩伟,严俊杰..电制热熔盐储热发电系统的动态特性分析[J].热力发电,2025,54(9):25-34,10.基金项目
国家自然科学基金项目(52276016) （52276016）
陕西省重点研发计划项目(2024GX-ZDCYL-04-10) （2024GX-ZDCYL-04-10）
国家重点研发计划项目(2024YFB2408400)National Natural Science Foundation of China(52276016) （2024YFB2408400）
Key Research and Development Program of Shaanxi Province(2024GX-ZDCYL-04-10) （2024GX-ZDCYL-04-10）
National Key Research and Development Program(2024YFB2408400) （2024YFB2408400）
