Design of track control system in PV

Solar energy has an enormous developing application capacity as one kind of green renewable energy source which can be continuously used forever. The track control system in PV adapts automatic tracking light techniques to make solar panels always perpendicular to sunlight. This way can greatly improve the generated energy of PV array, add solar energy utilization ratio, reduces the cost of photovoltaic power. This paper mainly introduces the basic structure and hardware and software design process of track control system in PV, gives the hardware circuit, parameter test methods and software control process of this system, analysis the advantages and disadvantages of sun trajectory tracking mode and electro-optical tracking mode, choose the method that electro-optical tracking as the major tracking mode while the sun trajectory tracking mode as additional tracking mode on unusual weather conditions.