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Abstract
This paper proposes a fast model predictive control (FMPC) method without weighting factors and mitigated common-mode voltage (CMV) for a five-level active neutral point clamped (5L-ANPC) inverter-fed electric aircraft propulsion system with a coreless axial flux permanent magnet (CAFPM) motor. This motor is specifically designed for electric aircraft propulsion through a combined electromagnetic and thermal evaluation, benefiting from a high specific power density, efficiency, and integrated thermal management system. The proposed method utilizes the deadbeat approach to calculate the reference voltage vector and compensate for the one-time interval delay between the predicted and applied switching commands. The angle and amplitude of the reference voltage vector in the inverter’s space vector diagram are utilized to find the optimum voltage vector from a series of candidate voltage vectors with mitigated CMV values to one-sixth of the DC-link voltage. Moreover, hierarchical cost functions without weighting factors are adopted to achieve multi-objective optimizations and predict the optimum switching state. Compared to the conventional MPC method, the proposed method requires significantly shorter calculation time, leading to utilizing high sampling frequencies and improving the steady state and dynamic performance of the motor-drive system. The performance of the proposed method is investigated in the takeoff and cruise modes of an electric aircraft’s mission profile.
Document Type
Conference Proceeding
Publication Date
10-2024
Digital Object Identifier (DOI)
doi: 10.1109/ECCE55643.2024.10861732
Repository Citation
Notash, Farzad Y.; Vatani, Matin; He, Jiangbiao; and Ionel, Dan M., "Model Predictive Control of 5L-ANPC Inverter Fed Coreless AFPM Motor with Mitigated CMV in Electric Aircraft Propulsion" (2024). Electrical and Computer Engineering Graduate Research. 58.
https://uknowledge.uky.edu/ece_gradpub/58
