off grid solar inverter 3kw

Components of solar power system

(1) Solar cell module

The solar cell module is the main part of the solar power system and the most valuable component of the solar power system.

Solar cell component diagram

Solar cell module diagram

Converts radiant energy into DC electrical energy;

(2) Solar charge and discharge controller

The solar charge and discharge controller is also called "photovoltaic controller". 

Its role is to regulate and control the power generated by solar cell modules, to maximize the charging of the battery, and to protect the battery from overcharge and overdischarge effect. In places with large temperature differences, the photovoltaic controller should have the function of temperature compensation.

Working mode:

1, pure inverter (no power) : directly from the battery through the inverter, output ac sinusoidal alternating current, for the use of the load;

2. Complementary (with mains power) : when the input mains power is normal, the mains power is supplied directly; When the mains voltage is too high or too low, the mains voltage is automatically adjusted by the step-down winding or step-up winding inside the inverter, so that the inverter can output more stable AC mains voltage. At the same time, the bidirectional inverter can charge the battery pack. When the power supply is abnormal or power is cut off, the battery pack will supply power. The direct current provided by the battery pack will be converted into pure alternating current by two-way inverter for load use.

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