用于磁滞类电机平行四边形模型的修正  

Modified parallelogram hysteresis model for hysteresis motor

作　　者：曹亮[1] 李格[1] 

机构地区：[1]上海交通大学电气工程系,上海200240

出　　处：《电机与控制学报》2008年第4期425-429,共5页Electric Machines and Control

基　　金：教育部博士点基金(20060248012);上海-加拿大研究理事会合作基金(06SN07113)

摘　　要：平行四边形磁滞模型与其他常用模型相比更适合用于径向磁通的磁滞电机磁路分析。Copeland和Slemon教授发展的平行四边形模型认为剩磁密度在变换过程中是不动的,本文运用叠加原理、等效磁路和傅立叶变换的方法证明了该模型在变换过程中剩磁密度点是漂移的,漂移程度取决于模型中4个边的斜率。模型修正后,BH环矩形面积与变换前的平行四边形面积相等,符合模型变换的基本导则。最后用修正模型对30HP磁滞电机进行了分析验证,相对于原模型该电机剩磁漂移达到4%。The parallelogram model developed by Professor Copeland and Slemon assumes that the remanence in the transform process remains unchanged. To verify this model, the methods of superposition principle, equivalent magnetic circuit and Fourier transform are implemented to demonstrate that the rem- anence shifts in the process and the shift depends on the slopes of four parallelogram sides. After modifiy- ing the model, the area of BH rectangular loop is the same as that of the parallelogram one before trans- formation, which is in accordance with the basic rule of BH loop approximation. The modified model is employed to analyze a 30Hp hysteresis motor. The simulation result shows that the shift of remanence of this motor is 4% neglecting the eddy current and squirrel cage effect.

关 键 词：磁滞电机 平行四边形修正模型 磁路解析分析 

分 类 号：TM301.44[电气工程—电机]