RT Journal Article
T1 Assessment of Virtual-Voltage-Based Model Predictive Controllers in Six-Phase Drives Under Open-Phase Faults
A1 González Prieto, Ignacio
A1 Durán-Martínez, Mario Javier
A1 Bermúdez, Mario
A1 Barrero, Federico
A1 Martín, Cristina
K1 Máquinas eléctricas
AB The inherent fault-tolerant capability of multiphase machines is highly appreciated, but it requires fault detection and localization together with a reconfiguration of the control scheme. When the multiphase machine is regulated using finite-control set model predictive control (MPC) strategies, the reconfiguration involves the use of different transformation matrices, cost functions, and current references for each of the multiple open-phase fault (OPF) scenarios. Aiming to simplify this procedure and add further robustness, this paper explores the possibility to achieve a natural fault-tolerant capability by maintaining the prefault control strategy after the fault occurrence. For this purpose, this paper first analyzes the two main reasons why MPC-regulated multiphase drives misbehave in the event of an OPF: the voltage vector shifting and the search for incompatible goals. In the next step, a version of the MPC that includes virtual-voltage vectors (VVs) is tested for the first time in postfault situation and it is compared to conventional MPC technique. Extensive experimental results reveal that, while MPC misbehaves in the event of an OPF, the VV-MPC provides a satisfactory ripple-free postfault performance. This finding has two significant implications for industrial applications: the postfault operation is highly simplified and, at the same time, the fault-tolerant multiphase drive becomes immune to fault detection errors and delays
PB IEEE
YR 2020
FD 2020-09
LK https://hdl.handle.net/10630/37287
UL https://hdl.handle.net/10630/37287
LA spa
NO I. González-Prieto, M. J. Duran, M. Bermúdez, F. Barrero and C. Martín, "Assessment of Virtual-Voltage-Based Model Predictive Controllers in Six-Phase Drives Under Open-Phase Faults," in IEEE Journal of Emerging and Selected Topics in Power Electronics, vol. 8, no. 3, pp. 2634-2644, Sept. 2020, doi: 10.1109/JESTPE.2019.2915666.
DS RIUMA. Repositorio Institucional de la Universidad de Málaga
RD 20 ene 2026