There is a device on off-grid portable solar power equipment that is often overlooked - the solar controller. The solar panel generates current and charges the battery through the solar controller. Choosing the right solar controller is crucial for improving charging efficiency. Additionally, some controllers have functions such as anti-overload, anti-overcharge, anti-reverse connection, and anti-short circuit, which ensure the stable and efficient operation of the solar system.
Currently, there are three main types of solar controllers on the market: ordinary controllers, PWM type controllers, and MPPT type controllers. The ordinary controller is the first generation controller, which directly connects the output of the solar panel to the battery port. However, due to the internal resistance of the battery, it is difficult to fully charge the battery, resulting in a power generation efficiency of only 70%. As a result, this type of controller has been eliminated from the market. The PWM type (Pulse-Width Modulation) is the second generation controller, which controls analog circuits using digital means. This greatly reduces the cost and power consumption of the system and solves the problem of insufficient battery charging. Due to its low price, it is currently the most popular controller on the market. The MPPT type (Maximum Power Point Tracking) is the highest-end solar controller. As the name suggests, it has the function of maximum power point tracking, which detects the voltage and current of the solar panel in real time and constantly tracks the maximum power. This ensures that the system always charges the battery with the maximum power, resulting in a charging efficiency of over 95%.
To better understand the differences between PWM and MPPT, let's use an analogy. The solar controller is like a car's transmission and the solar panel is the engine. The PWM controller is like a manual transmission, where the gear cannot be automatically adjusted as the engine speed increases, affecting the speed. On the other hand, the MPPT controller is like an automatic transmission, where the gear shifts accordingly as the engine speed increases, resulting in an automatic increase in speed. It is clear that the MPPT controller is the best option on the market, with almost no disadvantages.
To ensure the long-term stability and efficient use of solar energy systems, BIGLUX products are all equipped with MPPT controllers, which automatically adjust the power according to the light intensity based on the customer's location. Additionally, BIGLUX can also be equipped with a diesel generator or wind turbine for auxiliary power generation, providing sufficient power for outdoor off-grid areas, construction sites, emergency rescue, etc. With enough power, you can install any necessary equipment at the load end, such as lights, surveillance cameras, or energy storage. If you have any technical or quotation questions, please leave your email address, we will contact you within 24 hours.
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