标题：Analytical Performance Calculation of Vernier Hybrid Machine with Subdomain Method
作者：Yang Y.; Liu G.; Yang X.; Wang X.
作者机构：[Yang, Y] School of Electrical Engineering, Shandong University, Jinan, China;[ Liu, G] School of Electrical Engineering, Shandong University, Jinan, 更多
通讯作者地址：[Yang, Y] School of Electrical Engineering, Shandong UniversityChina;
来源：Electric Power Components and Systems
关键词：analytical method; electromagnetic torque; finite element method; magnetic vector potential; subdomain method; vernier hybrid machine
摘要：The analytical subdomain models of vernier hybrid machines with two kinds of permanent magnet (PM) arrangements are developed, and the magnetic vector potentials are considered unknown variables to obtain the no-load and on-load magnetic field in this article. According to the electromagnetic properties and machine structure, the entire solving region is divided into five subdomains, namely the stator slot, slot opening, PM, air gap, and rotor slot. Using the general solutions of magnetic vector potentials and boundary conditions, the magnetic field distributions of all subdomains are obtained. Then the air gap flux density, flux linkage, back-EMF, cogging torque, electromagnetic torque, unbalanced magnetic pulls, and PM loss are calculated and compared for the two models. With the analytical model, the PM demagnetization withstand capacity, effects of main parameters on the torque ripple and average torque, and combinations of PM and rotor slot numbers are also studied. The 2D finite element method and experimental results of two prototype machines validate the accuracy of the analytical models. © 2019, © 2019 Taylor & Francis Group, LLC.