塔式光热电站发电量估算

Estimation of Power Generation of Solar Power Tower Plants

塔式光热电站作为一种新的发电方式在国内引起日益广泛的关注,在设计阶段对电站进行完整的经济性评估十分重要。发电量是电站工程的重要指标,也是经济性评估的基础,科学评估塔式光热电站发电量具有重要的指导意义。以项目为例,对收集到的太阳辐射原始资料进行分析,将典型代表年的太阳直接辐射数据作为电站发电量估算的基础。在考虑全厂设备可用率的前提下,通过对太阳辐射到电能的能量转换效率进行分析评估,计算全年发电量和全厂光电转换效率。

As a new type of power generation,solar power tower plants are attracting more and more attention in China.It is very important to carry out complete economic evaluation of power stations in the design stage.Power generation is an important indicator of power station engineering and the basis for economic evaluation.How to scientifical y evaluate the power generation of solar power tower plants has important guiding significance.Taking a project as an example,the article first analyzes the col ected solar irradiation raw data,and determines the typical representative year.The direct solar irradiation data of the typical representative year is used as the basis for estimating the power generation of the power station.The tower type photothermal power station is divided into a solar island system and a power generation system.The article not only analyzes and evaluates the conversion efficiency of each part of the solar irradiation to electric energy conversion process,but also considers the availability of the whole plant equipment,and final y calculates the whole year.Power generation and photoelectric conversion efficiency of the whole plant.