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Since the photovoltaic power generation, wind power and other distributed power supply are volatile and random, they will affect the stability of the grid frequency. In order to improve the voltage and frequency in micro-grid, the virtual synchronous generator control strategy is proposed for inverter control, which can emulate the behavior of synchronous generator, decrease rate of change of frequency...
Harmonic power sharing and PCC voltage quality are both important issues for the power quality of islanded microgrids. This paper proposes a new control scheme to deal with those two issues based on controlling the equivalent harmonic impedance of DGs. With the proposed control scheme, harmonic power is shared according to remaining power capacities of DGs and PCC voltage harmonics are effectively...
To solve the reactive power sharing issue in droop control, many improved methods have been developed. However, existing methods can't provide both accurate and fast performance in reactive power sharing, no matter wireless or communication methods. In fact, rapidity is an important indicator for reactive power sharing control, especially when load changes frequently. In this paper, a fast reactive...
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