Summary
The growing penetration of inverter-based resources exacerbates power system stability issues, particularly subsynchronous oscillations (SSOs) caused by controller interactions. Gridforming (GFM) control offers advantages over conventional mitigation, yet its design is often limited by black-box modelling and incomplete system information, leading to reduced robustness. This paper adopts a data-driven framework to design a GFM voltage controller for an enhanced STATCOM to robustly damp SSO. A Type-3 wind power plant connected to a series-compensated network is treated as a black-box system, with voltage dynamics identified via closed-loop frequency response estimation. Frequency-domain objectives are then formulated as a mixed-sensitivity optimisation problem. The resulting controller is benchmarked against an optimally tuned PI controller, demonstrating significant improvements in voltage-source behaviour, SSO damping, and robustness across varying resonance modes.
Additional informations
| Publication type | Session Materials |
|---|---|
| Reference | C4_10348_2026 |
| Publication year | |
| Publisher | CIGRE |
| Country | Australia |
| Study committees |
|
| File size | 2 MB |
| Price for non member | 30 € |
| Price for member | 30 € |
Authors
HAJTALEB Salah - Monash University, Australia; ALI Sohail - Monash University, Australia; RAVANJI Mohammad - Monash University, Australia; BAHRANI Behrooz - Monash University, Australia
Keywords
