Advanced control strategies are vital components for realization of microgrids. This paper
reviews the status of hierarchical control strategies applied to microgrids and discusses the …

Synchronization techniques can be classified into open-loop and closed-loop methods. In
power and energy applications, which are the focus here, the latter type is more popular …

This paper presents a new multiresonant frequency-adaptive synchronization method for
grid-connected power converters that allows estimating not only the positive-and negative …

In grid-connected applications, the synchronous reference frame phase-locked loop (SRF-
PLL) is a commonly used synchronization technique due to the advantages it offers such as …

Synchronization with the utility networks is crucial for operating three-phase grid-interfaced
converters. A challenge of synchronization is how to fast and precisely extract the …

Recently, several advanced phase-locked loop (PLL) techniques have been proposed for
single-phase applications. Among these, the Park-PLL and the second-order-generalized …

Abstract Renewable energy based Distributed Generation (DG) has been the solution to
researchers to combat the problem of increasing load. In DG based microgrids, the loads …

Recent interest in the integration of renewable energy sources (RES) into the power grid has
raised concerns in synchronization of the various RES. Grid variables such as voltage …

During the grid synchronization of distributed generation (DG) units, phase-locked loop
(PLL) is well accepted as an efficient approach to detect grid phase angle. Conventional …

This paper presents a review on grid Integration and power quality issues associated with
the integration of renewable energy systems in to grid and Role of power electronic devices …