An approach to develop control for the grid-following inverter

This paper considers a control algorithm for a static converter operating in an AC grid based on the grid-following approach. A modification of the voltage modulated direct power control (VMDPC) method is proposed, supplemented with a generalized compensation for the voltage drop and output voltage phase shift across a generic output filter. The control is implemented as a versatile system applicable to both three-phase and single-phase grids. For the sake of simplicity, the effectiveness of the proposed approach to compensating for the filter influence is evaluated using an example of a single-phase inverter with an output LC filter.

Authors: V. S. Lavrinovsky, N. A. Dobroskok, R. M. Migranov, P. D. Shuvalova

Direction: Electrical Engineering

Keywords: grid-following inverter, third-order generalized integrator, LC filter, synchronization, single-phase and unbalanced grids, dq transformation

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