盘式无铁心永磁同步电机矢量控制技术分析

发布时间：2018-04-27 17:07

本文选题：盘式无铁心 + 永磁同步电机　；参考：《中国电机工程学报》2014年18期

【摘要】：盘式无铁心永磁同步电机的定、转子均为无铁心结构,在同等输出功率和转矩条件下,电机重量较轻,并具有过载能力强、无齿槽转矩、气隙磁场分布正弦性好、电枢反应小、参数线性等优点。作为电动机应用时,特别适合对电机体积有特殊要求且低速性能好、响应速度快、过载能力强的场合。同样,因为无铁心结构,电机定子绕组电感很小,很小的电感导致通以绕组内的电流不连续,从而产生电磁转矩脉动。该文提出一种电机外部串电感的方法,增大定子绕组回路的电感值,设计了基于转子磁场定向的盘式无铁心永磁同步电机调速驱动系统。仿真和实验结果证实了控制方法的有效性,电机转速平稳且无静差,超调量小;能够获得较大启动转矩,响应速度快。
[Abstract]:The stator and rotor of disc core free permanent magnet synchronous motor are of iron-free structure. Under the same output power and torque, the motor is light in weight, has strong overload capacity, no tooth slot torque, good sinusoidal distribution of air gap magnetic field, and small armature reaction. Linear parameters and other advantages. As an application of motor, it is especially suitable for situations with special requirements for motor volume, good low speed performance, fast response speed and strong overload capacity. Similarly, the stator winding inductance of the motor is very small, which leads to the discontinuity of the current in the stator winding, which results in the electromagnetic torque ripple due to the absence of the core structure. In this paper, a method of external inductance is proposed to increase the inductance of stator winding loop, and a rotor field-oriented drive system is designed for the disk permanent magnet synchronous motor (PMSM). The simulation and experimental results show that the control method is effective, the speed of the motor is stable, there is no static error, the overshoot is small, the starting torque can be obtained and the response speed is fast.
【作者单位】：天津大学电气与自动化工程学院;
【分类号】：TM341

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