1. 西安交通大学 动力工程多相流国家重点实验室,陕西,西安,710049
2. 英国曼彻斯特大学 电子与电气工程学院,曼彻斯特,英国,M13 9PL
孟梓睿(2000—),女,天津人,本科,研究方向为光煤互补。严卉(通信作者),女,助理研究员,博士,E-mail:yanhui0602@stu.xjtu.edu.cn。
纸质出版:2026
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孟梓睿, 赵轩, 严卉, 赵全斌, 种道彤. 塔式集热光煤互补发电系统动态特性研究[J]. 动力工程学报, 2026, 46(5): 173-183.
孟梓睿, 赵轩, 严卉, 赵全斌, 种道彤. 塔式集热光煤互补发电系统动态特性研究[J]. 动力工程学报, 2026, 46(5): 173-183. DOI: 10.19805/j.cnki.jcspe.2026.250028.
DOI: 10.19805/j.cnki.jcspe.2026.250028
为研究塔式集热光煤互补发电系统在太阳辐照扰动下的动态性能及能质损失特性
通过建立其动态模型
分析了太阳辐照强度扰动下系统的能量转换特性和能质损失规律
分析了耦合储热对光煤互补发电系统在太阳辐照强度扰动条件下动态响应时间尺度的差异
并在典型气象条件下研究了光照连续变化下的系统瞬态运行性能。结果表明:耦合储热的光煤互补发电系统稳定时间长于无储热系统
且储罐容量越大
稳定时间越长。在100%汽轮机热耗率验收(THA)工况下
当太阳辐照强度由900 W/m2阶跃变化-15%~+15%时
瞬态过程中系统发电功率由660 MW变化至656.9~663.1 MW
光电转换(火用)效率由29.7%变化至26.6%~32.0%。耦合储热后可有效减小系统波动
并且随着储热容量的增加
波动幅度进一步减小。
To investigate the dynamic performance and exergy loss characteristics of the tower-type heat-collecting solar aided coal-fired power plant (SACFPP) system under solar irradiance disturbances
a dynamic model of the system was established. The energy conversion characteristics and exergy loss patterns of the system under solar irradiance intensity disturbances were analyzed
along with the differences in dynamic response time scales of the SACFPP system with coupled heat storage under solar irradiance intensity disturbances. Additionally
the transient operational performance of the system under continuous changes in solar irradiance under typical meteorological conditions was studied. Results show that the stabilization time of the SACFPP system with coupled heat storage is longer than that of the system without heat storage
and the larger the storage tank capacity
the longer the stabilization time. Under 100% turbine heat acceptance (THA) condition
when the solar irradiance undergoes a step change of -15% to +15% from 900 W/m2
the power output of system changes from 660 MW to 656.9-663.1 MW during the transient process
and the solar-to-electricity exergy efficiency changes from 29.7% to 26.6%-32.0%. After coupling heat storage
system fluctuations can be effectively reduced
and as the heat storage capacity increases
the fluctuation amplitude further decreases.
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