Independent photovoltaic power generation
Independent photovoltaic power generation is also called the off-grid photovoltaic power generation. Is mainly composed of solar modules, controllers, batteries, if the power supply for ac load, also need to configure the ac inverter. Independent photovoltaic power station, including villages in the remote area power supply system, solar household power supply system, signal power, cathodic protection, solar street lamp, etc with a battery can be stand-alone photovoltaic power generation systems.
Grid photovoltaic power generation
Grid is solar photovoltaic power generation is produced direct current through the grid inverter after converted to meet the requirements of the mains grid ac direct access to the public grid.
Photovoltaic instance
Photovoltaic instance
Can be divided into with battery and without battery grid-connected power generation system. Grid generation system with accumulator is schedulable, can according to need to merge into or exit from power grid, also has the function of the standby power supply can be an emergency power supply when the power grid due to power outages. With a battery of photovoltaic (pv) grid power generation systems are often installed in residential buildings; Without a battery connected to the grid system does not have the function that can scheduling sex and standby power supply, general installation on the larger system. Grid photovoltaic power generation has a large centralized grid photovoltaic power plants are generally national power plants, the main characteristic is to the power generation can be directly to the grid, unified by the power grid deployment of supply power to users. But this power plant investment, long construction period, covers an area of big, not too big. While distributed small grid photovoltaic (pv), especially photovoltaic building integrated photovoltaic (pv) power generation, because of small investment, quick construction, cover an area of an area small, policy support big advantages, is the mainstream of the grid photovoltaic power generation.
Distributed photovoltaic power generation
Distributed photovoltaic power generation system, also known as the distributed power generation or distributed power, refers to the user scene or close to the smaller photovoltaic power supply system, electric field configuration to satisfy the needs of specific users, support for economic operation of the existing distribution network, and at the same time meet the requirements of these two aspects.
Distributed photovoltaic power generation system of the basic equipment includes photovoltaic cells components, photovoltaic phalanx, junction box, dc distribution cabinets, dc grid inverter, ac distribution cabinets, such as equipment, in addition to monitoring device of power supply system and environmental monitoring devices. Its operation mode is in the solar radiation conditions, photovoltaic power generation system of solar cell module array to convert solar energy output power, a dc bus concentrated into dc power distribution cabinet, by the grid inverter inverter into alternating current supply of building their own load, excess or shortage of electricity through the grid to adjust.