Digital Hydraulic tracking system for heliostats
Solar-thermal power generation is a new direction of development in the field of new energy. Tower-type solar thermal power generation has gradually become the mainstream due to its high conversion rate and low integrated operating costs. Large-scale heliostat hydraulic servo control is one of the core technologies in tower-type solar thermal power generation. The development of large-capacity tower-type heliostats and no-cable (non-power cables, self-powered photovoltaics) photothermal power generation is the latest international development trend. BrightSource first implemented a cable-free compact heliostat in Israeli projects, but larger heliostats must use hydraulic drives. The Digital hydraulic is the upgrading technology from servo valve control, and it is the latest popular trend in the world. The Chinese in this field is leading position. A lot of digital hydraulic products have been widely used in the fields of national defense, hydroelectric power, metallurgy, heavy machinery, etc. It replaces the servo valve control system to achieve higher technical level, reduce the comprehensive cost, significantly better than servo valve control system. AEMETEC has implemented a cable-free drive control of a large heliostat using a leading digital hydraulics in a customized project for a Spanish solar thermal power generation company, achieving precise control of the horizontal angle and pitch angle of heliostats. This system is the highest level of accuracy right now, compared to servo hydraulic, servo electric and other programs, it has the following advantages: | ||
It's reliable. Draw lessons from the simple and reliable advantages of the hydraulic system of the slot mirror. | ||
High precision. With the advanced international digital hydraulic technology, the defects of the poor precision of the slot mirror are improved. | ||
With locking ability, can withstand strong wind loads; | ||
With overload protection, heliostat can be realized in the catastrophic wind automatic unloading protection; | ||
It has the ability to coordinate the precision control of the double hydraulic cylinder, which not only ensures the coordination of the double hydraulic cylinders, but also ensures that the structure is not damaged. | ||
With elevation to more sophisticated angle control precision and improve collection efficiency. | ||
More energy saving. The power following control is realized by the frequency converter to reduce the loss and heat. | ||
Better environmental tolerance performance. | ||
All digital hydraulic and control system. | ||
Much more driving force is in line with the development trend of the large heliostat. | ||
Lower comprehensive cost. | ||
Digital hydraulic tracking system for heliostats
Digital hydraulic(Cylinder & Motor) tracking system for heliostats  | ||
