Robust Fault Compensation in Bushfire-Prone Distribution Networks Using Prescribed Performance-Based Hybrid Nonlinear Controllers

Tushar Kumar Roy; Md Apel Mahmud; Amanuallah Maung Than Oo

doi:10.1109/TIA.2026.3653748

Robust Fault Compensation in Bushfire-Prone Distribution Networks Using Prescribed Performance-Based Hybrid Nonlinear Controllers

Tushar Kumar Roy, Md Apel Mahmud Amanuallah Maung Than Oo

IEEE Transactions on Industry Applications, Vol.Advanced access(4)

14-Jan-2026

: https://doi.org/10.1109/TIA.2026.3653748

Adaptation models

Backstepping

Compensated distribution networks

Convergence

Distribution networks

Event detection

Fault currents

Inverters

leakage parameters

prescribed performance control

Prevention and mitigation

residual current compensation inverters

robust hybrid control approach

Robustness

Uncertainty

This paper propose a robust hybrid nonlinear control strategy-termed the prescribed performance-based backstepping adaptive nonsingular integral terminal sliding mode controller (PP-BSA-NITSMC), designed for enhancing fault compensation performance in residual current compensation (RCC) inverters used in bushfire-prone compensated distribution networks. A second-order dynamical model is adopted to jointly regulate neutral voltage and current, allowing fault compensation without dependence on leakage parameters. A prescribed performance function shapes the transient and steady-state tracking behavior within predefined bounds, while a nonsingular integral terminal sliding mode structure ensures finite-time convergence and robustness against disturbances. Comparative simulation studies with a first-order model-based controller (PP-ANITSMC) under both low-impedance (150~\Omega) and high-impedance (25.4 k\Omega) single line-to-ground faults demonstrate significant improvements: the proposed controller reduces the steady-state rms fault current from 0.1696 A to 0.1588 A under low-impedance and from 0.0025 A to 0.0019 A under high-impedance conditions-achieving approximately 6.35% and 24% improvements, respectively. Additionally, the system settles more quickly, prevents overshoot during neutral current injection, and enhances neutral voltage stability, fully meeting bushfire mitigation standards. These outcomes clearly demonstrate that PP-BSA-NITSMC provides superior accuracy, responsiveness, and reliability in handling various fault conditions.

: Robust Fault Compensation in Bushfire-Prone Distribution Networks Using Prescribed Performance-Based Hybrid Nonlinear Controllers
: Tushar Kumar Roy - Macquarie University
Md Apel Mahmud - Deakin University
Amanuallah Maung Than Oo - University of the Sunshine Coast, Queensland, School of Science, Technology and Engineering
: IEEE Transactions on Industry Applications, Vol.Advanced access(4)
: Institute of Electrical and Electronics Engineers
: 10.1109/TIA.2026.3653748
: 1939-9367
: School of Science, Technology and Engineering
: English
: 991206280602621
: Journal article