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  • Solar power system grid  
1.Solar panel (PV) system

      Independent solar photovoltaic systems (off-grid) is powered by solar panels, batteries, controller, inverter composed of independent power supply for users. And the out-put voltage is AC220v/110v for on-grid system . It will be better if choose with wind power generations .

A、SGFD / B grid-connected generation system, its principle below a;


2.mold and Spec



3.System components

SOLAR PANELS :

Solar panels and solar power generation system in the central part of its role is to directly convert solar radiation into direct current for the load on the battery used or stored within the reserve. According to user needs, according to a certain number of solar panels connected to form a solar cell matrix, adding the appropriate bracket and junction box components. Solar panels by the International Electrotechnical Commission IEC: 1215:1993 standard requires the use of polycrystalline silicon (or silicon) solar cell series and parallel combinations to form various types of 12V and 24V and the capacity of the components. This component can be used for a variety of household photovoltaic systems, grid-independent photovoltaic power plants and photovoltaic power stations.
Main specifications :
Solar panels by the International Electrotechnical Commission IEC: 1215:1993 standard requires the use of polycrystalline silicon (or silicon) solar cell series and parallel combinations to form various types of 12V and 24V and the capacity of the components. This component can be used for a variety of household photovoltaic systems, grid-independent photovoltaic power plants and photovoltaic power stations.
Solar panel controller :

  solar controller is made of CPU, electronic components, monitors, switching power tubes and other components. In the solar power generation system, the controller's basic role is to provide the best for the battery charging current and voltage, fast, smooth, efficient battery charging, and reduce losses in the charging process, and extend battery life; while protecting battery to avoid overcharge and over discharge phenomenon. Simultaneously record and display a variety of important system data, such as the charging current, voltage
Main specifications :
Out-put voltage : 12v/24v
Control switch : light-operated / time control / light-time hybrid control
Functions : Battery overshoot, put, open, load, over voltage, output short circuit, solar cells, battery reverse polarity, voltage and over voltage protection.

Inverters :
Solar panel's voltage is DC12V/24V/48V .
Inverter can transfer the voltage to AC220V/110V .etc for home usage and others .

Specifications :
Rated capacity : 200w to 100kw
Put-in DC voltage : 12v/24v
Out-put AC voltage : 220v/380v
Rate : 50HZ±5%
Working temperature : -10 ℃~+40 ℃
Efficiency : >75%
4.Photovoltaic power supply system examples
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