A control method for one phase solar converters

摘要

This paper shows a novel control strategy for one phase solar converters to minimize the effect of the one phase power fluctuation. This fluctuation has a serious effect to the efficiency of the system: the PV does not operate in the maximum power point (MPP), the harmonic content of the output current is significant that's why compensation of the power fluctuation is needed. In this study a method is shown, which calculates the effects of the power fluctuation to the DC link voltage feedback and compensates with it. This compensation method has a good static- and dynamic behavior: The DC feedback voltage does not have significant fluctuation and can follow the changing in the grid's voltage. The results were simulated in Matlab Simulink and with a one phase solar voltage source inverter experiments were taken. The simulated and the experimental result confirm that this compensation method also has a good static- and dynamic behavior.