Inertia and Grid Impedance Emulation of Power Grid for Stability Test of Grid-Forming Converter

Wang, Jiashi; Ma, Ke

doi:10.1109/tpel.2022.3210926

Cited by 11 publications

(1 citation statement)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The grid-forming inverter has attracted much attention in recent years since it can provide voltage support for the grid and can work in both grid-connected and islanded modes. Currently, the control strategies for grid-forming inverters encompass droop control, virtual synchronous generator (VSG) control, virtual oscillator control (VOC), matching control, and others [2][3][4][5][6]. However, the dominant control structure is VSG control and droop control; therefore, this article mentions these two control strategies.…”

Section: Introductionmentioning

confidence: 99%

A Feedforward Control-Based Power Decoupling Strategy for Grid-Forming Grid-Connected Inverters

Liu,

Song,

et al. 2024

Energies

View full text Add to dashboard Cite

Grid-forming inverters, which are represented by droop control and virtual synchronous generator control, have been widely studied and applied because of their excellent grid-supporting ability and smooth off-grid switching. When a grid-forming inverter is connected to a microgrid or utility grid, the control loops of active power and reactive power will be coupled because of the voltage phase difference, which will affect the power control performance. This paper first derives the small-signal linearized model of the system, based on which a frequency feedforward control and an amplitude feedforward control are proposed to decouple the active power and reactive power control loops, respectively. The proposed decoupling strategy directly modifies the reference values through feedforward with an easily implementable principle that is applicable to various control coordinate systems, control coordinate systems, and control structures. By comparing system models with and without the proposed decoupling strategy, its effectiveness can be theoretically proven. Time-domain simulations and hardware experiments are presented to further validate its effectiveness.

show abstract

Section: Introductionmentioning

confidence: 99%