摘要
采用SAM软件模拟研究光资源(太阳能法向直接辐射量DNI)、太阳倍数、储热时长、装机规模及发电机组循环效率等因素对塔式太阳能热发电站性能的影响。研究结果表明光资源越好,则电站的发电量和容量系数越高;优化设计太阳倍数和储热时长,以获得最佳的聚光集热系统和储热系统配置,结果表明,对装机19.9 MW的电站而言,在太阳倍数2.5和储热时长15 h的组合下,可获得较好电站性能;装机规模并非越大越好,对太阳倍数为2.5,储热15 h的单塔电站而言,50 MW是性能较好的装机规模;发电机组循环效率的提高可降低定日镜数量和储热容量,减少投资。
The influence of the direct normal irradiation(DNI),solar multiple(SM),full load hours of thermal energy storage(TES hours),installed capacity and cycle thermal efficiency on the solar tower power plant performance has been investigated comprehensively using SAM. The results show that the better DNI leads to higher annual energy output and higher capacity factor;and the optimization for the SM and TES hours is necessary to get the best design of solar field and thermal energy storage,For the 19.9 MW plant case,the combination of SM 2.5 and TES hours 15 leads to the best power plant performance;The larger installed capacity does not always lead to better performance efficiency,and 50 MW is good enough for the single tower power plant with SM 2.5 and TES hours 15;the increase of the cycle thermal efficiency leads to the decrease of the heliostat number and TES capacity.
作者
曹传胜
Cao Chuansheng(PowerChina Hubei Electric Engineering Corporation Limited,Wuhan 430040,China)
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2020年第10期223-228,共6页
Acta Energiae Solaris Sinica
关键词
太阳能热发电
性能
优化
模拟
储热
solar tower power station
performance
optimization
simulation
thermal energy storage
