In this section
@inproceedings{Javaid:2025:10.1109/PESGM52009.2025.11225689,
author = {Javaid, MS and Chaudhuri, B and Teng, F and Akhtar, Z},
doi = {10.1109/PESGM52009.2025.11225689},
publisher = {IEEE},
title = {Impact of inner control in GFM-induced sub-synchronous oscillations},
url = {http://dx.doi.org/10.1109/PESGM52009.2025.11225689},
year = {2025}
}
TY - CPAPER
AB - In power systems dominated by grid-forming inverters (GFMs), strong grid conditions can lead to sub-synchronous oscillations (SSOs) due to the reduced time-scale separation between GFM control loops and network dynamics, potentially causing instability. Modal analysis reveals that states associated with inner control (comprising current and voltage control loops) and network dynamics are the primary contributors to these oscillatory modes. This paper provides an analytical explanation of adverse interactions between GFM inner control and network dynamics that lead to SSOs. Through damping ratio sensitivity analysis, we establish that increasing the current control closed-loop bandwidth and the voltage control proportional gain can effectively mitigate these oscillations. The proposed control adjustments also prove effective in larger systems with 100% inverter-based resources penetration, comprising of a mix of both grid-following and grid-forming inverters.
AU - Javaid,MS
AU - Chaudhuri,B
AU - Teng,F
AU - Akhtar,Z
DO - 10.1109/PESGM52009.2025.11225689
PB - IEEE
PY - 2025///
TI - Impact of inner control in GFM-induced sub-synchronous oscillations
UR - http://dx.doi.org/10.1109/PESGM52009.2025.11225689
UR - https://ieeexplore.ieee.org/abstract/document/11225689
ER -
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