太阳能电池供电1（Solar powered 1）.docVIP

太阳能电池供电1（Solar powered 1） 1., the composition of solar photovoltaic power generation system Solar photovoltaic power generation system mainly consists of solar photovoltaic cells, photovoltaic systems, battery controllers, batteries and AC and DC inverters are the main components. The core components are photovoltaic cells and controllers. The role of the components in the system is: Photovoltaic cells: photoelectric conversion. Controller: process control that acts on the entire system. The use of photovoltaic power generation system controller in many types, such as 2 point controller, multiple sequential controller, intelligent controller, power tracking controller charging, use at present in China mostly simple design of the controller, the intelligent controller is used only for communication systems and large-scale photovoltaic power station. Storage battery: the storage battery is the key component of the photovoltaic system, which is used to store the power transferred from the photovoltaic cell. At present, our country has not used for photovoltaic systems dedicated batteries, but the use of conventional lead-acid batteries. AC / DC inverter: because its function is AC / DC conversion, the most important index of this component is reliability and conversion efficiency. The grid connected inverter uses maximum power tracking technology to maximize the power transferred from the photovoltaic cells into the grid. 2. solar photovoltaic panels: Solar cells mainly use monocrystalline silicon as material. Make P-N junctions in silicon like diodes using single crystals. The operating principle is similar to that of diodes. However, in the diode, the external electric field that drives the P-N junction hole and electrons moves is the external electric field, while in solar cells it is the solar photons and the radiation heat that drive and affect the hole and electron motion of the P-N. That is, the principle of photovoltaic effect. At present, the photoelectric con