A Novel Open- and Short-Circuit Fault-Tolerant SRM Drive: Development of a Redundant H-Bridge-Based MMC and a New VF-FCS-MPC
Year: 2026
Type: conference-paper
Abstract: This paper proposes a novel open- and short-circuit fault-tolerant Switched Reluctance Machine (SRM) drive based on a redundant H-bridge-based modular multilevel converter (MMC) and a fault-tolerant virtual-flux finite-control-set model predictive control (FT-VF-FCS-MPC) strategy. The converter provides submodule-level redundancy for post-fault operation, while the control scheme integrates fault detection and mitigation, enabling real-time switching reconfiguration. The system is validated under sequential open-circuit faults in phases $\mathbf{A}$ and $\mathbf{B}$ and short-circuit faults in phases C and D, at $\mathbf{9 0 \%}$ rated load (132.3 $\mathbf{N} \cdot \mathbf{m}$) and $\mathbf{8 2. 5 \%}$ nominal speed ($\mathbf{2 0 6. 2 5} \mathbf{~ r a d} / \mathbf{s}$). Detection times equivalent to 7 and 205 processing cycles, with total mitigation times comparable to 114 and 384 processing cycles, respectively, are achieved. Despite disturbances, the drive maintains stable operation and reaches steady state within 1.86s.
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: hybrid
OpenAlex ID: W7168244787