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In this paper, the design of a microcontroller-based control scheme for grid-tie photovoltaic (PV) microinverters using Direct Digital Synthesis (DDS) technique has been presented. The proposed control scheme based on DDS technique has capabilities such as, phase locked-loop generation, maximum power point tracking, anti-islanding and fault ride-through capability, which are essential requirements...
In this paper, the design and implementation of a dsPIC microcontroller-based photovoltaic (PV) microinverter has been presented. The flyback PV microinverter is controlled via a low-cost dsPIC microcontroller circuit, with the duty cycle variation of the power switch generated directly from the AC grid voltage, or from a reference sinusoidal waveform at power frequency in the case of standalone applications...
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