Affiliation:
1. Department of Industrial Engineering, University of Padova, 35131 Padova, Italy
2. College of Automation Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
Abstract
Variable flux reluctance machines (VFRMs) are increasingly attracting research interest due to their magnetless and robust brushless structure. Under the modulation effect of the airgap permeance, the VFRM operates with a series of field harmonics, distinguishing it from conventional AC synchronous machines. This paper deals with the analysis and preliminary design of the VFRM from the perspective of multiple working airgap field harmonics. Firstly, the spatial and temporal order of the working field harmonics are defined. The systematic winding theory, including the unified star of slots and winding factor calculation method, is established to consider all these working harmonics. Then, an average torque model is built and simplified. The key role of 1st-order rotor permeance, 1st- and 3rd-order polarized stator permeance is deduced. The relationship between key parameters and average torque is computed, providing a guideline for the preliminary design of the VFRM.
Funder
China Scholarship Council
Reference30 articles.
1. A Review on Electric Vehicles: Technologies and Challenges;Sanguesa;Smart Cities,2021
2. Performance of a Hybrid Electric Vehicle Using Reluctance Synchronous Machine Technology;Malan;IEEE IEEE Trans. Ind. Appl.,2001
3. Electrical Machines and Drives for Electric, Hybrid, and Fuel Cell Vehicles;Zhu;Proc. IEEE,2007
4. Chau, K.T. (2016, January 1–5). Overview of Electric Vehicle Machines—From Tesla to Tesla, and beyond. Proceedings of the 2016 International Conference of Asian Union of Magnetics Societies (ICAUMS), Tainan, China.
5. Overview of Permanent-Magnet Brushless Drives for Electric and Hybrid Electric Vehicles;Chau;IEEE Trans. Ind. Electron.,2008