Maximum output power tracking (MPPT)
The MPPT efficiency is a key factor in determining the power generation of a photovoltaic inverter, and its importance far exceeds the efficiency of the photovoltaic inverter itself. MPPT efficiency is equal to hardware efficiency multiplied by software efficiency. The hardware efficiency is mainly determined by the accuracy of the current sensor and the accuracy of the sampling circuit; the software efficiency is determined by the sampling frequency.
There are many ways to implement MPPT, but no matter which method is used, first measure the power change of the component, and then react to the change. The key component is the current sensor. Its accuracy and linearity error will directly determine the rigid efficiency, and the sampling frequency of the software is also determined by the accuracy of the hardware.
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