Fault-Tolerant Control for 5L-HNPC Inverter-Fed Induction Motor Drives with Finite Control Set Model Predictive Control Based on Hierarchical Optimization

다국어 초록 (Multilingual Abstract)

This paper proposes a fault-tolerant control strategy with finite control set model predictive control (FCS-MPC) based onhierarchical optimization for five-level H-bridge neutral-point-clamped (5L-HNPC) inverter-fed induction motor drives. Faulttolerantoperation is analyzed, and the fault-tolerant control algorithm is improved. Adopting FCS-MPC based on hierarchicaloptimization, where the voltage is used as the controlled objective, called model predictive voltage control (MPVC), the postfaultcontroller is simplified as a two layer control. The first layer is the voltage jump limit, and the second layer is the voltagefollowing control, which adopts the optimal control strategy to ensure the current following performance and uniqueness of theoptimal solution. Finally, simulation and experimental results verify that 5L-HNPC inverter-fed induction motor drives havestrong fault tolerant capability and that the FCS-MPVC based on hierarchical optimization is feasible.

참고문헌 (Reference)

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