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The role of solar controllers Jun 20, 2018

The role of solar controllers

The most basic function of the solar charge and discharge controller is to control the battery voltage and open the circuit. In addition, when the battery voltage rises to a certain level, the battery is stopped. The old version of the controller mechanically completes the opening or closing of the control circuit, stopping or starting the power delivered to the battery by the power source.

Controllers are used in most photovoltaic systems to protect the battery from overcharging or overdischarging. Overcharging may vaporize the electrolyte in the battery, causing malfunctions, and over-discharging of the battery may cause premature failure of the battery. Overcharge and overdischarge can damage the load. Therefore, the controller is one of the core components of the photovoltaic power generation system and the main part of the balancing system BOS (Balance of System).

Simply put, the role of solar controllers can be divided into:

1, power adjustment function;

2, communication function: 1 simple indication function 2 protocol communication functions such as RS485 Ethernet, wireless and other forms of background management;

3, perfect protection function: electrical protection reverse connection, short circuit, over current, etc.