CAJ | 학술논문

游标永磁电机是一种基于磁场调制原理的新型电磁传动装置，适用于船舶推进、风力发电等低速大转矩的应用场合。准确计算游标永磁电机的磁场分布是设计、优化电磁性能的关键。关于电机解析磁场计算，该文讨论和比较了一极一槽模型和精确子域模型。以表贴式游标永磁电机为研究对象，在气隙子域建立拉普拉斯方程，在槽子域和永磁体子域建立泊松方程，根据分离变量法直接求解。模型建立在二维
유표영자전궤시일충기우자장조제원리적신형전자전동장치，괄용우선박추진、풍력발전등저속대전구적응용장합。준학계산유표영자전궤적자장분포시설계、우화전자성능적관건。관우전궤해석자장계산，해문토론화비교료일겁일조모형화정학자역모형。이표첩식유표영자전궤위연구대상，재기극자역건립랍보랍사방정，재조자역화영자체자역건립박송방정，근거분리변량법직접구해。모형건립재이유
Vernier permanent-magnet machines are novel magnetic force transmission devices, and are becoming promising candidate for low-speed high-torque applications such as ship propulsion and wind power generation. Accurate calculation of the magnetic field is a key to design and optimize vernier permanent-magnet machines. The one slot per pole machine model and the accurate subdomain model are discussed and compared. The Laplace's equations in the airgap subdomain, Poisson's equations in the permanent magnet subdomain and the slot subdomain are solved by the variable separation method. The analytical model is set up in 2D polar coordinates and accounts for the influence of radial/parallel/Halbach magnetization, single/double layer winding configurations, internal/external rotor topologies, which can be used to predict the open-circuit, armature reaction and on-load magnetic field distribution. Based on this field model, the electromagnetic performances, such as the airgap magnetic field density, back-EMF and winding inductances is calculated. The analytical model is validated by the corresponding finite-element results.