Abstract

A control strategy combining a virtual oscillator control and multi-resonant control which is used in a parallel three-phase inverter system is proposed in the paper. The strategy retains the advantages of the virtual oscillator control and increases the quality of output voltage by introducing a P + multi-resonant based voltage regulator. The ability of eliminating the circulating current is also increased by a virtual impedance loop. The control structure is given and the selection of control parameters is explained in this paper. Finally, the effectiveness of proposed strategy is validated by simulation.

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