极相调制异步电机的绕组设计及性能比较  

Winding design and characteristic comparison for inductionmachines with pole-phase modulation

作　　者：孙东森[1] 葛宝明[1] 毕大强[2] 

机构地区：[1]北京交通大学电气工程学院,北京100044 [2]清华大学电力系统国家重点实验室,北京100044

出　　处：《电机与控制学报》2010年第8期81-86,共6页Electric Machines and Control

基　　金：电力系统国家重点实验室资助项目(SKLD09KM03)

摘　　要：异步电机可使用极相调制的变极策略扩展转速/转矩范围,极相调制可以采用传统的电机绕组也可采用环形绕组。本文提出了一种异步电机极相调制绕组的设计方法,基于这种方法分别设计了极相调制的传统绕组及环形绕组样机。有限元计算结果验证了提出的变极绕组设计规律以及极相调制绕组变极的可行性。比较了传统电机、环形绕组单转子电机及环形绕组双转子电机在同一极数下的运行性能,双转子电机更适合环形绕组,它充分利用了环形绕组的两边,内外转子均输出转矩,提高了效率;但是,传统绕组电机则具有更好的性价比,更有应用前景。Pole-phase modulation is a suitable solution to extend the speed/torque capabilities of induc- tion machines. It can be implemented in induction machines with conventional winding structure, also with toroidally structure, but they will present different performances. In this paper, a general winding design rule for pole-phase modulation of induction machines is proposed. Based on this rule, the conven- characteristics of the conventional winding machine, the toroidal winding machine and the dual-rotor to- roidal-winding machine operated in the same mode are compared in FEM software JMAG-studio. Double rotors with one stator are preferable for toroidal winding because it utilizes the both sides of coils instead of only one side in one rotor with one stator. In this type machine, both inner and outer rotors could pro- vide output torque, so it has higher efficiency. But conventional winding machines have reasonable per- formance cost and broad application prospect.

关 键 词：极相调制 异步电机 变极 绕组设计 双转子 

分 类 号：TM343[电气工程—电机]