This paper surveys current literature on modeling methods, control techniques, protection
schemes, applications, and real-world implementations pertaining to grid forming inverters …

Recently, the large-scale integration of power electronic-based renewable energy power
plants has changed the operation and response mechanism of the power system, resulting …

Short circuit ratio is an outdated measure of system strength in converter dominated systems
as the useful behaviour of inverter-based resources is not represented. While still useful for …

In order to realize the grid-friendly wind turbine system (WTS), applying of the virtual
synchronous generator (VSG) control strategy to WTS has become a trend of research, and …

The impedance of grid-connected converter (GCC) is crucial for the small-signal stability
analysis of the renewable-energy system. Traditionally, the impedance of the power …

In recent years, grid-following inverters (GFLIs) and grid-forming inverters (GFMIs) have
established their position as the mainstream synchronization techniques for the grid …

This paper provides an analytical investigation of the small-signal stability of the grid-
connected voltage source converter (VSC) as well as the impacts of the system resistances …

This letter proves that a grid-following converter can stably connect to a weak grid even short-
circuit ratio (SCR) is 1. Root instability causes of this grid-following control are identified …

The main purpose of this article is to elaborate on the limitations of using frequency-domain
passivity theories in analyzing grid-inverter interactions within the low-frequency range. It …

Voltage source inverters (VSIs) with vector control based on phase-locked loop (PLL) suffer
instability when connecting to a very weak AC grid (short circuit ratio (SCR) 1.3). The …