Open AccessEvaluation of Counter Rotating Dual Rotor Permanent Magnet Flux Switching Machines with Series and Parallel Stator teeth
Author(s) -
Wasiq Ullah,
Faisal Khan,
Udochukwu B. Akuru,
Salar Ahmad Khalil
Publication year - 2023
Publication title -
ieee access
Language(s) - English
Resource type - Journals
ISSN - 2169-3536
DOI - 10.1109/access.2023.3314500
Subject(s) - aerospace , bioengineering , communication, networking and broadcast technologies , components, circuits, devices and systems , computing and processing , engineered materials, dielectrics and plasmas , engineering profession , fields, waves and electromagnetics , general topics for engineers , geoscience , nuclear engineering , photonics and electrooptics , power, energy and industry applications , robotics and control systems , signal processing and analysis , transportation
In this study, the focus is on the magnetic path formation and its consequences on the performance of a counter rotating dual rotor permanent magnet flux switching machine (CR-DRPMFSM) for direct-drive counter rotating wind power generation, based on different stator slot and rotor pole combinations. To fully exploit rotor-shaft bore and improve fault-tolerant design, as well as increase torque density, dual rotor topologies with capability for dual electrical and dual mechanical ports are being investigated. Moreover, the direct-drive counter rotating wind power generation technique offers a brushless topology, thus reducing maintenance cost and improving energy conversion efficiency compared to single rotating systems. Using finite element analysis (FEA), the inherent magnetic coupling of the series and parallel paths shows varied impacts on the electromagnetic performance of four different CR-DRPMFSM slot/pole combinations (MI to MIV), considered in this study. The key electromagnetic performance indices such as torque, cogging torque, torque ripple, power factor and efficiency show proportionate variation to the coupling level. Comparative analysis shows that MI exhibits higher average torque, lower torque ripples and high efficiency reaching 90% with a power factor of 0.6. As an optimal design, an MI test prototype is developed. The experimental test prototype validates the FEA results under no-load and on-load conditions.