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Solar photovoltaic building integrated system solutions
BIPV (Building Integrated Photovoltaics) is a new concept of solar power generation. Simply put, the solar photovoltaic power generation matrix is installed on the outer surface of the building's maintenance structure to provide power. As the combination of PV arrays and buildings does not take up additional floor space, it is the best way to widely apply PV power generation system in the city, so the application prospect is broad.
The combination of photovoltaic and building the general form of the following: First, combined with the photovoltaic and the wall; the second is the combination of photovoltaic and roof; Third, combined with the sun and solar photovoltaic; Fourth, combined with the fence and photovoltaic. From the combination of PV square and building wall and roof, it is mainly for roof PV power plant and wall PV power plant. The integration of photovoltaic modules and buildings in terms of the main photoelectric curtain wall, photoelectric ceiling, photovoltaic panels and other forms of sun visor.
First, the composition of photovoltaic building integrated power generation system
PV household power generation consists of the following components: solar modules, charge controller, battery, according to the output power for the AC 220V or 110V, but also configure the inverter.
PV module matrix: by the solar module (also known as photovoltaic cell components) in accordance with the system needs string, in parallel, in the sunlight will be converted to solar energy output.
It is the battery charge and discharge conditions to be regulated and controlled, and in accordance with the load power demand control of solar modules and batteries to load the power output is the core of the entire system control part.
Energy storage battery
Storing the electric energy generated by the solar cell module, and releasing the stored electric energy to meet the energy demand of the load when the illumination is insufficient or at night or when the load demand is greater than that of the solar battery module, which is the energy storage part of the solar photovoltaic system
The system generates and stores are DC, through the inverter to convert the DC load required for the user AC
Second, the system works:
1 System wiring diagram:
Design features: high efficiency, light control + hole, according to the requirements of meteorological conditions, the implementation of intelligent human management, the use of deep-cycle gel battery, an effective solution to the battery to the ambient temperature adaptation and cycle life,
2. System operating mode
1) Operation of the solar panel
When the sunshine during the day, the main input power (solar panels) work, direct sunlight through the solar panels produce DC power, the charge controller to adjust, a group of energy storage battery charge, so that energy storage battery in the floating state , Another group to the inverter power supply, the inverter will convert DC sine wave AC power output, to the load power supply.
2) energy storage battery operating status
When there is no sunlight at night, the main input power (solar panel) does not work, this time from the storage battery to the inverter power supply, the inverter will convert DC sine wave AC power output to the load power supply.