Solar controller full name solar charge and discharge controller, is used in solar power generation system, control the multi-channel solar cell array to charge the battery and battery to solar inverter load power supply automatic control equipment. It is the core control part of the whole photovoltaic power supply system by specifying and controlling the charge and discharge conditions of the battery, and controlling the power output of the solar cell module and the battery to the load according to the power supply demand of the load.
The solar control system consists of a solar panel, battery, controller, and load. The solar controller is a device used to control the photovoltaic panel to charge the battery and to provide load control voltage for voltage-sensitive equipment. It regulates and controls the charge and discharge conditions of the battery, and controls the power output of the solar cell module and the battery to the load according to the power supply demand of the load. It is the core control part of the whole photovoltaic power supply system.
It is designed for use in remote areas as a communication or power supply system for monitoring equipment. The charge control and load control voltages of the controller are fully adjustable, and the battery voltage, load voltage, solar array voltage, charge current, and load current can be displayed.
Almost all solar power systems that use battery power are in great need of a solar charge and discharge controller. The role of the solar charge and discharge controller is to regulate the power from the solar panel to the battery. Battery overshoot, at least significantly, reduces battery life, from worst to damaging the battery until it can no longer be used properly.
The solar controller adopts a high-speed CPU microprocessor and high-precision A/D analog-to-digital converter, which is a microcomputer data acquisition and monitoring control system. It can not only collect the current working state of the PV system quickly and in real-time, obtain the working information of the PV station at any time, but also accumulate the historical data of PV station in detail, which provides an accurate and sufficient basis for evaluating the rationality of PV system design and testing the reliability of system components quality. In addition, the solar controller also has the function of serial communication data transmission, which can centrally manage and remotely control multiple PV system sub-stations. The solar controller usually has 6 nominal voltage levels: 12V, 24V, 48V, 110V, 220V, and 600V. At present, the controller to multifunctional development, there is the traditional control part, inverter, and monitoring system integration trend.