Composition and characteristics of distributed photovoltaic power generation is what?

Photovoltaic (pv) power generation refers to the use of solar energy photovoltaic cells convert solar radiation directly to electricity generation. Photovoltaic power generation is the mainstream of today's solar power, so, now what do people usually say solar power mainly refers to the photovoltaic power generation. Distribution

photovoltaic power generation refers to the use of solar photovoltaic cells convert solar energy directly into electricity generating method. Photovoltaic power generation is the mainstream of today's solar power, so now the people often said that solar power is mainly refers to photovoltaic (pv) power generation. Distributed photovoltaic especially refers to the building of the photovoltaic power generation facilities near the site, its characteristic is that the user side spontaneous self use, online using redundant power and balance adjustment in the distribution system. Distributed photovoltaic follow adjust measures to local conditions, clean and efficient, the principle of distributed use nearby, make full use of local solar energy resources to replace and cut down the consumption of fossil energy. Distributed photovoltaic power generation is a new type of power generation and energy utilization mode, has a broad development prospects. It advocates, closer to the nearest generation (dg), conversion and use to the nearest to the nearest principle. It can not only improve the power generation with scale photovoltaic power station, can effectively solve the booster and electrical energy loss problem in long-distance transportation. At present, it is widely used as a distributed photovoltaic power generation systems. This is a city built on a building roof of photovoltaic power generation project. This type of project must be connected to the public grid, in order to supply power to nearby users with public power grid. Composed of distributed photovoltaic power generation of distributed photovoltaic of mainly includes: 1. The solar cell module 2. Protection device 3. Circuit 4. Inverter 5. Grid interface solar modules: it is the core component in a photovoltaic system, its function is to convert solar energy into electric energy. Inverter: to convert direct current (dc) to alternating current (ac) devices. Direct current electricity is caused by the solar cell module, and most of the load is an alternating current load in the process of practical application, so we need the device to convert direct current (dc) to alternating current (ac) for the use of the load. The characteristics of distributed photovoltaic power generation in the first place, the output power is relatively small. In general, the capacity of the distributed photovoltaic projects within a few kilowatts. Unlike centralized power stations, the size of the photovoltaic power station will have little impact on the power generation efficiency, very little impact on the economy. Return on investment of small pv systems will be no lower than large photovoltaic system. Pollution is small, the environmental benefit is prominent. In the process of power generation, distributed photovoltaic projects without noise, not pollution gas and water. Third, to a certain extent, can contact your local power shortages. However, the energy density of distributed photovoltaic power generation is relatively low, the power of distributed photovoltaic system is only about 100 watts per square meter, is suitable for the building roof installation of photovoltaic components area is finite, cannot fundamentally solve the problem of power shortage. Four, can power generation and electricity together. Large ground power station power is gradually connected to the power transmission network, and only as a power plant operation. Distributed photovoltaic power generation, however, are connected to the power distribution network, power generation and power, the need of local electricity as much as possible.