Shunt active power filters (APF) are used in power systems for the compensation of harmonic
currents generated for non linear loads. A new digital reference current estimation method …

Since the application of the thyristor to power control in the 1970's, the advances in power
electronic devices, converter topologies and digital technologies have allowed the …

The proliferation of nonlinear loads and the increasing penetration of distributed energy
resources in medium-voltage (MV) and low-voltage (LV) distribution grids make it more difficult …

Synchronization with the utility voltage is naturally carried out by a diode bridge stage in
single-phase active rectifiers, while an active synchronization is included in the control …

Power factor correction (PFC) converters are widely employed for ac/dc conversion to fulfill
the applicable standards while ensuring high efficiency. Current-sensorless controllers in …

Distributed Power Generation Systems (DPGS) based on inverters require reliable islanding
detection algorithms (passive or active) in order to determine the electrical grid status and …

Second Order Generalized Integrator (SOGI) cells are used for notch filtering due to their
simplicity and their harmonic rejection capability. SOGI and Dual SOGI (DSOGI) filter cells, …

Bridgeless power factor correction (PFC) stages and the associated current shaping techniques
require grid synchronization to ensure unity displacement power factor. In controllers …

In-depth models of single-phase grid-tied power converters facilitate the examination of
lowfrequency (LF) interactions among loads, distributed energy resources (DERs), and …

A new optimized implementation of the recently proposed Two-Sample (2S) Phase Locked
Loop, PLL, with Frequency Feedback (FFB) for single-phase Bridgeless Power Factor …