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In this video we do MPPT charger & regulator product review. We are testing whether the device is indeed a mppt charger. We compare MPPT charger and PWM chargers. We can review and prove which one produces more energy. All these details can be found in our video.
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They are the products that must be included in the design for inverters without mains connection. They can be purchased externally or in the solar inverter. Basically the tasks of both; to charge the battery or battery group in a healthy way and to prevent direct current from the battery direction to the solar panels. Furthermore, they can provide a stable output for your DC loads with the DC connection section on them.
The aim is to charge the battery, but the methods they use are different. MPPT chargers constantly try to find the maximum power point (the maximum energy that can be generated), as is the case with most grid-connected inverters. He is not content with little and constantly questions himself “Can I generate more power? Bun however, it is a bit expensive.
PWM chargers are more economical, but not always able to use all of the potential panel power. Batteries are connected to the device and the system automatically selects the operating voltage. PWM device determines the voltage value it will charge according to the battery value connected to it. we see. When we compare the total production, they are charge control units that produce 15-20% less.
MPPT structure; After the charging voltage is determined automatically, it is under continuous control, it has the ability to charge the batteries with more power by decreasing the high voltage that may come from the panel input and increasing the current at the output. This enables quicker battery charging.
The graph below shows the behavior of the pwm and mppt charge controllers supplying the 24V battery pack (the DC power supply is programmed to deliver constant current.) The MPPT unit gives more output power as much as the yellow painted area.
It is useful to discuss scenarios where these devices are not used; for example, what happens if we connect our solar panel directly to the battery? our battery will be charged, but the solar panel, which tends to fill even if the charge is completed, will exceed the safe voltage limits of the battery and damage the product. In addition, since most panels do not have a blocking diode, the energy stored in the battery will want to move towards the panel in the evening. Charge controllers are designed to prevent all these drawbacks, and we can also get an idea of the occupancy rate with the LCD panel or LEDs on it.
To summarize; Since solar energy is a long-term investment, it is not wrong to opt for PWM, but it is more efficient to buy an MPPT charge controller or to use this specific inverter.