This paper addresses the estimation of the grid impedance and the control of grid-tied
converters by combining pulsed signal injection (PSI) and observer-based techniques. A …

Paralleled inverters with asynchronous carriers are increasingly emerging into renewable
power plants and other power-electronic-based power systems. The sideband harmonics …

Grid-connected LCL-filtered inverters are commonly used for distributed power generators.
The LCL resonance should be treated properly. Recently, many strategies have been used …

This paper demonstrates unexpected instability mode at low power levels. This instability
mode is at low frequencies and can be explained using the root locus of the linearized …

Increasing demand for renewable energy has led to a rapid growth of doubly fed induction
generator (DFIG)-based wind farms around the world. As a critical component of the DFIG …

Oscillation phenomena of offshore wind power plant (OWPP) in a wide frequency range can
be caused due to impedance interactions between grid-connected inverters (GCIs) and …

Currently, how the inductive grid impedance variation affects the stability of digitally
controlled grid-tied inverters with a high-order (LCL or LLCL) filter has been numerously …

In this paper, a robust grid-current-feedback resonance suppression (GCFRS) method for
LCL-type grid-connected inverters is proposed to enhance system damping without …

Three-phase passive harmonic filters (eg, LCL filters) are often utilized to attenuate
harmonic currents caused by pulsewidth modulation of voltage-sourced converters (VSC) to …

Large offshore wind power plants (OWPPs) installed far from the coastline are emerging to
benefit from the strong and steady wind resources available at these locations. The high …