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One of the popular products in the market is solar controllers. There are mainly three types of solar controllers: normal solar controller, PWM solar controller, and MPPT solar controller. The differences between these controllers are explained in detail below.
Normal solar controller is the first generation technology:
The working principle is to directly connect the output of the solar panel to the battery port. When the battery is full, it is disconnected. Due to the internal resistance of the battery, it is difficult to fully charge the battery, and the charging conversion efficiency of the solar panel is only 70% to 76%, which has been eliminated by the market and is rarely used by people.
PWM solar controller is the second generation technology:
It is currently the most popular in the market. The working method is to use PWM control method. Compared with normal solar controller, it has made a lot of progress and can solve the problem of insufficient battery charging. The charging conversion efficiency is 75% to 80%, but the solar panel is not fully utilized.
MPPT solar controller is the third generation technology:
The most high-end solar controller. MPPT solar controller refers to a solar controller with "maximum power point tracking" function. It is an upgraded product of PWM solar controller. MPPT solar controller can detect the voltage and current of the solar panel in real time, and constantly track the maximum power (P=U*I), so that the system always charges the battery with maximum power. The MPPT tracking efficiency is 99%, and the overall system power generation efficiency is as high as 97%. It also has excellent management for batteries, divided into MPPT charging, constant voltage equalization charging, and constant voltage floating charging.
With the progress of technology and energy conservation, the trend of MPPT solar controller replacing traditional PWM solar controllers is irreversible.
IPANDEE New Energy is a national high-tech enterprise integrating research and development, production, sales, and support services for photovoltaic industry, providing photovoltaic controllers, photovoltaic systems, solution development, and related photovoltaic technical support services. The company has passed the ISO9001/ISO14001 quality and environmental management system certification, and has obtained many invention patents, utility model patents, software works, and appearance patents in the field of photovoltaic applications. It has also won the technology application award from global authoritative institutions in the photovoltaic industry for many years in a row.
Currently, different series of products operate efficiently and stably in harsh natural environments such as high temperature, humidity, rain, high altitude, and sand, and have been highly recognized by the market and widely praised by customers, especially in the fields of home use, base stations, security, telecom towers, and forest fire prevention. Welcome to consult.
