塔式太阳能热电站系统仿真与分析

被引:12
作者
徐二树 [1 ]
胡忠良 [2 ]
翟融融 [2 ]
王贝 [2 ]
机构
[1] 太阳能热利用及光伏系统重点实验室(中国科学院)
[2] 电站设备状态监测与控制教育部重点实验室(华北电力大学)
关键词
太阳能热发电; 分析; 变工况; 储能; 仿真;
D O I
10.13334/j.0258-8013.pcsee.2014.11.011
中图分类号
TM615.1 [];
学科分类号
摘要
该文以八达岭1 MW塔式太阳能热发电系统为研究对象,建立了以水/水蒸汽为工质、带储能系统的塔式太阳能热发电■分析模型,并利用已有仿真平台模拟了电站在变工况下的状态参数。在此基础上,对整个电站进行了设计工况及变工况条件下■分析,辨识了各子系统热效率和■效率的变化规律。结果表明,设计工况下吸热器的损失率最高,可通过提高吸热器出口蒸汽温度来提高其效率。非设计工况下,定日镜场的效率受其与太阳相对位置的影响,其它子系统效率随太阳直射辐射强度(direct normal insolation,DNI)的增大而增大;充热过程中,随着进入储能系统蒸汽量的减少,储能系统和电站效率越来越高;放热过程中,储能系统释放的蒸汽流量对储能系统和电站的效率有显著的影响。
引用
收藏
页码:1799 / 1806
页数:8
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