Distributed photovoltaic power station design process led growing garden lamp series

From the point of development in recent years, as the country to the increasingly higher requirements of environmental protection, new energy has been widely used, especially in the photovoltaic (pv) and distributed energy generation capacity has already begun to replace the old energy in the proportion in the energy structure in our country. According to China's relevant

from the point of the development of recent years, with the constant improvement of the national requirements for environmental protection, new energy also has been widely used, especially in the photovoltaic, distributed energy generation capacity has already begun to replace the old energy sources such as the proportion of the energy structure in China. According to China's relevant industrial policies, the country's government actively encouraging attitude to the development of photovoltaic industry, support grid photovoltaic power generation. Relevant preferential policies has been introduced. To build a distributed grid photovoltaic power station system can better impact on the environment, save energy and reduce emissions. Design scheme of distributed photovoltaic (pv) grid power generation system need standardization and normalization. Not only to ensure that the distributed photovoltaic (pv) grid power generation system can be effectively used, but also improve the efficiency of distributed photovoltaic system, the design scheme of distributed photovoltaic (pv) grid power generation system, protection and prevention, etc. Therefore, based on the above reason, the analysis of distributed photovoltaic (pv) grid power generation system design scheme is very necessary. Tools/raw materials:

2 calculators. Three parameters of the report. Tape measure 4. Tape measure 5. Multimeter method/steps:

1, the capacity of the computing system; 2, determine the panels ( Type, parameters, quantity, etc. ) ； 3. To estimate the group list of design ( Preliminary estimates the size of the enclosure) ； 4. Determine the number and size of junction box; 5. Choose the cable type, quantity and size; 6, choose the type, quantity, size of frequency converter; 7. Determine the number and size of grid cabinet; 8. The design of monitoring system ( With or without large LCD, considering power supply) ； 9, determine the component fixed installation form; 10. Original equipment installation position and quantity system composition:

rooftop solar photovoltaic power station system in general by roof photovoltaic module array, junction box, DC distribution cabinets, low voltage ac cabinets, inverter, step-up transformer, high voltage cabinet and cable, forming multiple connections, inverter, pressure and the grid system. Photovoltaic array junction box is a kind of solar cell components can be orderly convergence of maintenance, the maintenance of the equipment and lightning protection function. The device can guarantee in photovoltaic (pv) system maintenance and check more easily separated from the circuit, and when occurrence problem of photovoltaic modules, can avoid as far as possible from the system out of the number of components can be used as the DC side of photovoltaic power generation system facilities. Photovoltaic array junction box installed on the roof of outdoor photovoltaic modules square area. Photovoltaic array component in outdoor using mother box for bus after bus, through the cable connected to the computer room of the DC power distribution cabinet secondary bus bus. DC power distribution cabinet through the cable after the second bus sent to the grid inverter, the DC energy through the grid inverter with ac DC energy can be converted to the network with the same frequency sine wave current, booster after feedback to grid, grid generation effect. The installation of the pv modules:

crystalline silicon pv module is by a large number of batteries or thin-film batteries, when installed on the roof, the received solar radiation can be converted into electricity. Due to the materials research technical barriers, improve the conversion efficiency of solar cells is very difficult. Installation of photovoltaic components, therefore, is an effective measure to improve the efficiency of distributed grid photovoltaic power station. Photovoltaic modules should be installed according to the longitude and latitude of the project city, geography, geology, construction direction, combined with field development, make the components as far as possible exposure to the sun. In addition, the installation mainly decided by the Angle and distance.