Research on Mitigation of Low Order Harmonics in the Grid-Connected Single-Phase PV Inverter

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Abstract:

In this paper, a single-phase grid-connected photovoltaic (PV) inverter topology consisting of an H-bridge circuit, an inductive filter and a transformer interfacing the grid is considered. To improve the quality of the grid current and eliminate low order harmonics caused by the inverter’s dead time, a strategy of adaptive harmonic compensation method is proposed, and the parameters related are designed. The experiment results show that the proposed method has a good effect to mitigate low order harmonics and can improve the quality of current injected to the grid.

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502-505

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July 2014

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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