The paper presents a summary of different double second-order generalized integrator
(DSOGI)-based phase-locked loop (PLL) algorithms for synchronization with three-phase …

This article presents a new strategy of active synchronization of an island micro-grid and the
utility grid (UG) without measurements at the point of common coupling (PCC). This strategy …

The paper presents the reactive power compensation method that allows for reducing the
active power flow even in the presence of angular asymmetry between voltage vectors of the …

The grid-tied inverter synchronizes with the network on the basis of the instantaneous
voltage phase angle. This angle is computed by the so-called synchronization algorithms …

The article presents the method of remote micro-grid synchronization with the utility grid in
the presence of voltage disturbances. The proposed algorithm and control devices …

This paper presents a system for compensating DC link current pulsation in four-wire
inverters with energy storage operating under unbalanced load conditions. This …

To model the nonlinear behaviour of vibrating systems, Taylor expansion with integer
powers is often used. Some systems, however, are inherently nonlinear. In the case of a non …

This paper introduces a new strategy of frequency estimation for grid-tied and stand-alone
mode AC/DC power converters. Frequency stabilization is required, especially when …

Calculating the values of the parameters of distorted periodic signals in real-time is
important for the control of many processes. In particular, this information is necessary for the …

In this paper, a DC power supply is presented that, in addition to a power factor correction, is
equipped with an active power filter function. This function enables compensation of both the …