The maximum capacity derived from solar cells Maximum power point tracker (MPPT)
The maximum capacity derived from solar cells Maximum power point tracker (MPPT)
Maximum power point tracker (MPPT)
Search systems for maximum capacity derived from solar cells
It is known that the electrical load consumes a certain capacity according to the voltage applied to it. Also, solar cells give a certain voltage and a certain current according to the operating point, which is determined by the internal resistance of the electrical load connected with it, which varies from one load to another. Also, at certain weather conditions, there is a specific point on the cell’s properties curve, where the area under that curve is as large as possible, at which point the power output from the cells is maximum, which is what is called the Maximum power point (MPP ) .
This point changes whenever the surrounding weather conditions change from the percentage of sun radiation or the temperature of the cells, which depends on the ambient temperature and humidity. In any solar cell system, whether it is connected to the network or not, it is required to operate it with the maximum possible efficiency, to track the maximum capacity points derived from the cells, regardless of the change in the surrounding weather conditions, through what is called the maximum capacity tracking system.
Maximum power point tracker (MPPT) . This is due to several factors, including that solar cell systems have non-linear properties, and thus the operating points (voltage and current) change according to the electrical load connected to them and the surrounding weather conditions. We find that a certain load can obtain a high capacity from the cells, while another load cannot, due to the incompatibility of the load requirements of voltage and current with the voltage and current coming out of the cells at those conditions.
We can make the load match the cells by changing the electrical resistance of the load (from the cells’ point of view) until the cells see the load with the optimal resistance required to draw maximum power from the cells. This process requires raising or lowering the voltage coming out of the cells and connected to the load until we reach the voltage and current corresponding to the maximum capacity derived from the group of cells connected with the load through an electronic transformer to raise and lower the continuous voltage, which is called a dc/dc converter.
The maximum capacity derived from solar cells Maximum power point tracker (MPPT)
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