2-6KW FI series off grid low frequency pure sine wave inverter
Different specifications of photovoltaic panels have different voltages. The output voltage of a single silicon solar cell is about 0.4 volts. Several solar cells must be connected in series to reach the usable voltage, and parallel connection can output a larger current. A large-area solar cell module can be formed by encapsulating and protecting multiple solar cells in series and parallel, and the solar cell module is the basic unit of the solar power generation system. In addition, in practical applications, photovoltaic panels are not directly connected to the load, but are connected to photovoltaic panels, energy storage batteries and electrical equipment through a solar controller to achieve comprehensive management of solar energy. Therefore, the entire optical storage system takes the battery as a reference, and the voltage value provided to the load comes from the working voltage of the battery.
The nominal voltage is also called the open circuit voltage, that is, the voltage value of the solar panel under peak light conditions, without any load connected, and no current output. Therefore, it can also be considered as the upper limit value of the output voltage of the solar cell panel.
The working voltage is the voltage value of the solar panel under the condition of peak illumination, when it is connected to the electrical load, and there is current output.
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