热力发电2025，Vol.54Issue(2)：88-96,9.DOI:10.19666/j.rlfd.202406144
考虑启动能耗的槽式光热电站日运行方式优化研究
Daily operating mode optimization for parabolic trough concentrated solar power station by considering start-up energy consumption
摘要
Abstract
The start-up energy consumption of parabolic trough concentrated solar power(PTCSP)systems is high due to the characteristics of their daily start-up and shut-down processes.To reduce this energy consumption,quasi-steady state models for a 50 MW PTCSP are established,and a daily optimal operating mode is proposed by replacing the start-up and shut-down processes with low-load operation.The critical shut-down time is derived theoretically to determine whether the optimal operating mode could reduce energy consumption.The results show that,the daily accumulated electricity production of a PTCSP can be improved by 16.3～26.3 MW·h with the optimal operating mode when the electricity production decreases from 25%to 10%of the rated production under low-load condition.When the initial energy storage duration in the thermal energy storage system increases from 0 to 3.0 h,the daily accumulated electricity production of the PTCSP system can be improved by 7.2～8.1 MW·h.Additionally,the critical shut-down time of the PTCSP system is 14.0 h when the load is 15%of the rated electricity production under low-load operating conditions.The start-up energy consumption of the PTCSP system with the optimal operating mode can be reduced when the practical shut-down time is shorter than the critical shut-down time.The annual electricity production of the PTCSP system can be increased by 0.9%with the optimal operating mode.关键词
太阳能热发电/启动能耗/运行优化/临界停机时间Key words
solar thermal power generation/start-up energy consumption/operation optimization/critical shut-down time引用本文复制引用
贺春光,郭伟,张顺奇,韩伟,付康丽,冯鹏辉,姚明宇,安佳坤..考虑启动能耗的槽式光热电站日运行方式优化研究[J].热力发电,2025,54(2):88-96,9.基金项目
国网河北省电力有限公司科技项目(SGHEJY00GHJS2310068) The State Grid Hebei Electric Power Company Technology Project(SGHEJY00GHJS2310068) （SGHEJY00GHJS2310068）
