Primitive grid synchronization systems of power converters were based on a zero-crossing detection (ZCD) algorithm, which is an open-loop synchronization (OLS) system. ZCD …
This paper presents an effective approach to identify power quality (PQ) events based on IEEE Std 1159-2009 caused by intermittent power sources like those of renewable energy …
A new technique for estimation of the instantaneous frequency based on simultaneous sampling of three-phase voltage signals is presented. The structure consists of two …
MS Reza, M Ciobotaru… - IEEE Transactions on …, 2014 - ieeexplore.ieee.org
This paper presents an accurate technique for the estimation of single-phase grid voltage fundamental amplitude and frequency. The technique consists of a quadrature signal …
Fast and precise tracking of grid voltage attributes is essential for the smooth and reliable control and operation of grid-side converters. The synchronous reference-frame phase …
A Abdollahi, F Matinfar - IEEE Transactions on Power Delivery, 2010 - ieeexplore.ieee.org
A new algorithm based on the least-squares method is proposed for online power system frequency estimation. The algorithm is based on a formula which holds for every three …
ZD Arani, SA Taher, A Ghasemi… - IEEE Transactions on …, 2017 - ieeexplore.ieee.org
Frequency variations are much faster and more significant in microgrids with low-inertia inverters and other control devices for distributed generation. Accordingly, it is imperative to …
From the control point of view, synchronization techniques are divided into two major categories: open-loop and closed-loop methods. Roughly speaking, open-loop …