标题：Dual Airgap Stator- and Rotor-Permanent Magnet Machines With Spoke-Type Configurations Using Phase-Group Concentrated Coil Windings
作者：Zhao, Wenliang; Chen, Dezhi; Lipo, Thomas A.; Kwon, Byung-Il
作者机构：[Zhao, Wenliang] Shandong Univ, Sch Elect Engn, Jinan 250061, Shandong, Peoples R China.; [Chen, Dezhi] Shenyang Univ Technol, Sch Elect Engn, Sheny 更多
会议名称：IEEE Energy Conversion Congress and Exposition (ECCE)
会议日期：SEP 18-24, 2015
来源：IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS
关键词：Direct-drive; finite element method (FEM); interior permanent magnet; machine (IPMM); phase-group concentrated coil (PGCC) windings;; spoke-type; switched flux permanent magnet machine (SFPMM)
摘要：This paper presents an advanced design procedure for stator-based and rotor-based permanent magnet (PM) machines to improve the electromagnetic performance by incorporating the spoke-type magnet configurations, phase-group concentrated coil windings, and an unaligned arrangement of two rotors/stators. The dual-rotor switched flux PM machine (SFPMM), designated as the stator-PM machine, and the dual-stator spoke-type interior PM machine (S-IPMM), termed the rotor-PM machine, are designed by the proposed design procedure to obtain high torque density and low pulsating torques for direct-drive applications. A quantitative comparison is performed between the proposed SFPMM and S-IPMM, and a conventional SFPMM with concentrated windings is adopted as the referenced model to evaluate the contribution of the proposed design procedure. The machine performance including back electromotive force, cogging torque, and electromagnetic torque is first analyzed by a finite element method under the same operating conditions. Finally, a prototype of the dual-stator S-IPMM is manufactured, and some key simulation results are verified by the experimental tests.