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The role of the curve of the MPPT solar controller

2017-09-21

MPPT solar controller is a new generation of solar controller, with high conversion efficiency, stable and reliable quality and many other advantages, and now the MPPT controller also has a lot of manufacturers, many functional advantages, today we talk about MPPT solar controller power generation The function of the curve.


 Figure 1 shows the current curve, Figure 2 is the MPPT controller standby interface, these two pictures on Sunday my company test users to shoot from the picture which can be seen from the test to use, power generation There are already more than 1700 degrees, the current curve is a beautiful parabola, from this curve can be seen the following:


1, the installation of the angle and orientation is correct.

 2, battery performance and stability.

 3, sunshine is better.

 4, the system configuration is ideal.

 5, solar panels power enough.

 6, the controller capacity, conversion efficiency up to 8%


Why through a graph can see so much data, the reason is very simple, then we will elaborate one by one.


1, The installation of the angle and orientation is correct, in Guangdong, one day the best time is more than 12 o'clock in the sun, through the curve can be seen, the highest point of power generation is more than 12 o'clock, so you can Confirm that the orientation and angle are correct, and if the orientation and angle are incorrect, the highest point will be advanced or back, and the entire graph will be asymmetric.

2, the battery performance is good, through the curve can see the battery performance sounds a bit weird, but in fact if the battery problems, will soon be filled with a battery inside if there is a battery problem, the charging time will Greatly shortened, and the discharge time is the same will be greatly reduced, so there will not be such a curve now.

3, sunshine is better, this is easier to understand, good light have a good curve, if a cloudy day will be a good light, such a curve like ECG, up and down fluctuations.

4, the configuration is ideal, if the battery configuration is too small, the charging time will be shortened to noon or one or two pm will enter the floating state, so that the charging current significantly reduced, this will be reflected in the curve above.

5, the solar panel power enough, this we can see through the above two pictures, our MPPT solar controller can display real-time power generation and cumulative power generation, the curve can be the highest daily power point to capture to tell We, so that we compare the power to buy components, you can easily know whether our components are sufficient power.

6, MPPT controller capacity, conversion efficiency up to 98%, the lack of capacity of the controller can not keep a long time to maintain high current charging, the curve will be like ECG, the conversion efficiency can be divided by the highest power point of the actual efficiency of the component inferred.

Through the above analysis, I believe we have a preliminary understanding of the MPPT solar controller curve, after which the micro-signal will continue to update the MPPT controller and solar power products, other technical information to help you learn more about solar power Products, but also hope that more and more people understand solar energy, to understand new energy, with solar energy, the earth will become more clean, while Tianyuan solar energy will, as always, adhering to the spirit of origin, to create more cost-effective products, but also for Made in China name, you can, I can, heaven source solar energy!

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