Research and Implementation of the Sun-tracking Device in Solar Thermal Power System

Solar thermal power generation technology is one of the effective way to solve the environmental pollution and ecological problems such as mass destruction in the 21th century. In the solar thermal power generation systems, various power mode of classification, the working principle, main parameters and the key research and development trend are introduced. The paper discusses the sun tracking problems existing in the current research on the basis of predecessors' achievements. The paper has designed a sun tracker based on four-quadrant sun position sensor This paper designs a track strategy of the combination of the sun tracking and the calendar tracking to realize the parabolic dish concentrator all-weather automatic tracking. Experiments show that, in all kinds of weather conditions, the tracker can steadily make parabolic dish concentrator real-time point at the sun, and the system has the high stability, low price and achieved satisfactory results.