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To guarantee a smooth transition from islanding mode to grid-connected mode, synchronization is the first issue to be considered. This paper puts forward a new synchronizing strategy based on voltage-controlled inverter. It can easily and accurately make the voltage frequency and phase of the distributed generation system track the main grid even if it varies. At the same time, there is a very small...
A hysteresis control strategy based on the modulation of output voltage for Buck converter is proposed in this paper, which offers faster transient response and better stability. The small signal is derived, dynamic analysis and evaluation of control strategy is performed and verified by simulation and experiment results.
This paper presents two current control techniques for single-phase voltage-source PWM rectifiers. The PI controller is compared with the resonant controller. In addition, a compensating method to eliminate input current distortion caused by supply voltage harmonics for the resonant control is proposed. Finally, the differences in the performance of the two controllers in a single-phase PWM rectifier...
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