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This paper presents an active method in detecting islanding for Dispersed Generation (DG) by injecting small amount (0.5%) of negative current into the point of common coupling (PCC), and then the negative system impedance will be measured. In this study, Adaptive Notch Filter (ANF) makes a debut as a synchronous part instead of Phase-Locked Loop (PLL) and as a signal processing unit as well. The...
This paper presents a novel power flow control method for autonomous operation of micro-grids in islanded mode. The proposed power flow controller makes use of a new adaptive estimation unit (AEU), which can estimate the amplitude, phase, and frequency of the fundamental component of the potentially non-stationary power signal, as well as the associated active and reactive power. The AEU is based...
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