摘要
碟式太阳能光热发电跟踪控制系统的关键技术在于使太阳光线始终垂直照射在碟式聚光器上,提高太阳能的利用率。碟式聚光器跟踪月球的目的是测月光的聚光光斑的相对能流密度分布,乘以太阳直射辐射(DNI),得到太阳的聚光光斑的能流密度分布。采用天文算法计算出太阳和月球的高度角和方位角,得到高精度的太阳和月球位置。该实验平台突破了传统的控制方式,利用全新的上位机软件dishcontrol.exe来控制碟式聚光器的俯仰和水平驱动机构跟踪太阳和月球的高度角和方位角,跟踪方式为双轴跟踪模式,系统的跟踪精度可达0. 001 rad,与以往的控制系统相比,跟踪精度提高了1倍左右。
The key technology of the dish-type solar thermal power generation tracking control system is to make the solar light always illuminate vertically on the dish concentrator to improve the utilization of solar energy. The purpose of the dish concentrator to track the moon is to measure the relative energy density distribution of the moonlight’s spotlight spot,multiply by DNI to obtain the energy flow density distribution of the sun’s spotlight spot. The astronomical algorithm is used to calculate the elevation and azimuth of the sun and the moon,resulting in high-precision sun and lunar positions. The experimental platform breaks through the traditional control method,and uses the new upper computer software dishcontrol.exe to control the pitch and horizontal drive mechanism of the dish concentrator to track the altitude and azimuth of the sun and the moon. The tracking mode is two-axis tracking mode. The tracking accuracy of the system can reach 0. 001 rad,and the tracking accuracy is doubled compared with the previous control system.
作者
丁浩楠
李晓
Ding Haonan;Li Xiao(College of Electrical and Control Engineering,North University of China,Taiyuan 030051,China;North China University Schneider Electric Joint Laboratory,Taiyuan 030051,China)
出处
《电子测量与仪器学报》
CSCD
北大核心
2019年第4期202-209,共8页
Journal of Electronic Measurement and Instrumentation
关键词
碟式太阳能
太阳位置
水平驱动机构
俯仰驱动机构
dish solar energy
sun position
horizontal drive mechanism
pitch drive mechanism
