【摘要】 由于太阳能间歇性的特点，光热电站需要进行日常启动，启动过程的能量损失会降低机组的发电量。为了明确光热电站启动过程中能量损失的组成和产生原因，本文对光热电站的启动过程进行了仿真模拟，并对其进行了能量分析。结果表明，光热电站启动过程中设备蓄热、能量损失和发电分别占总输入能量的40.59%、52.89%和6.51%，其中主要的设备蓄热位于储热系统和镜场，分别占总设备蓄热的80.60%和14.88%，主要的能量损失为集热器的光学损失、汽轮机的冷源损失和集热管的散热损失，分别占总能量损失的66.12%、18.58%和8.76%，集热管的散热损失、旁路损失和集热器的散焦损失具备节能潜力，共占总能量损失的15.31%。更多还原

【Abstract】 Daily start-up is the feature of concentrated solar power(CSP) plant resulting from the intermittency of solar energy. Therefore, the electricity production of CSPs is reduced due to the energy loss during the start-up process. To obtain the component and cause of the start-up energy loss, the dynamic simulation and energy analysis of CSPs during the start-up process were carried out. Results show that the energy storage, energy loss, and electricity production during the CSP start-up process account for 40.59%, 52.89%, and 6.51% of the total input energy, respectively.Energy storages of thermal energy storage and solar field are the major ones with 80.60% and 14.88%of the total energy storage, respectively. The collector optical energy loss, turbine cold source loss,and receiver heat loss are major ones with 66.12%, 18.58%, and 8.76% of the total energy loss,respectively. Receiver heat loss, bypass energy loss and collector defocused loss have the energysaving potential, accounting for 15.31% of total energy loss.更多还原