Multi-Loop Design of Virtual Synchronous Machine Control for DFIG-Based Wind Farms
Abstract
The displacement of synchronous generators by converter-interfaced renewable energy sources obliges wind farms to provide inertia, damping, and voltage support, above all in increasingly weak grid conditions. This paper presents a co-ordinated frequency-domain methodology for tuning all control layers of doubly-fed induction generators (DFIGs) within a wind farm operated as a Virtual Synchronous Machine (VSM). Starting from a full small-signal linearisation that preserves loop-to-loop and machine-to-machine couplings, the procedure reshapes every local open loop to explicit phase-margin targets through a single, prioritised iteration. The resulting controllers provide a step response and stability margins close to those programmed at the design stage, in spite of the cross coupling between control loops. Since controller synthesis relies exclusively on classical loop-shaping tools available in commercial simulation suites, it is readily applicable to industrial-scale projects.
Cite
@article{arxiv.2510.05043,
title = {Multi-Loop Design of Virtual Synchronous Machine Control for DFIG-Based Wind Farms},
author = {Javier Garcia-Aguilar and Aurelio Garcia-Cerrada and Juan L. Zamora and Emilio Bueno and Elena Saiz and Almudena Muñoz-Babiano and Mohammad E. Zarei},
journal= {arXiv preprint arXiv:2510.05043},
year = {2025}
}
Comments
Submitted for evaluation to Journal of Modern Power Systems and Clean Energy