The development of new energy and renewable resources is a common task faced by the whole world. In the new energy, solar power has become the world's fastest growing technology. As a kind of clean and pollution-free energy, solar energy has a broad development prospect. However, due to the interstitial nature of the sun and the constant change of light intensity over time, higher requirements are put forward for solar energy collection and utilization devices. At present, many solar panel arrays are basically fixed, which cannot make full use of solar energy resources, resulting in low efficiency of power generation. According to the test, in the solar panel array, the automatic tracking system generated about 35% more power than the fixed one under the same conditions.
The so-called solar tracking system is a power plant that allows the solar panels to face the sun at any time and the light from the sun's rays to hit the solar panels vertically at any time, which can significantly improve the efficiency of solar photovoltaic modules. At present, the tracking system used in the market can be divided into single-axis solar automatic tracking system and double-axis solar automatic tracking system according to the driving device. The so-called uniaxial axis can only track the sun in the horizontal direction, and adjust and fix the altitude artificially according to the change of geography and season, which not only increases the workload, but also has low tracking accuracy. Biaxial tracking can track the sun's track in both horizontal and altitude directions. Obviously, biaxial tracking is better than uniaxial tracking.
Main applications of solar tracking system:
1. flat panel photovoltaic power generation and CPV systems under 500 times;
2. paraboloid tracking in the photothermal field (such as solar oven, high-temperature solar heating, solar thermal chemical industry, etc.);
3. solar cell heat collection;
4. solar tower type thermoelectricity, etc.