永磁同步电机解决方案

Release time:2019-01-08
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source:Ameya360
reading:1827

1、 前言

永磁同步电机是由永磁体励磁产生同步旋转磁场的同步电机,永磁体作为转子产生旋转磁场,三相定子绕组在旋转磁场作用下通过电枢反应,感应三相对称电流。此时转子动能转化为电能,永磁同步电机作发电机 (generator) 用;此外,当定子侧通入三相对称电流,由于三相定子在空间位置上相差 120,所以三相定子电流在空间中产生旋转磁场,转子旋转磁场中受到电磁力作用运动,此时电能转化为动能,永磁同步电机作电动机用。

永磁同步电机解决方案

2、 方案概述

Ameya360 永磁同步电机解决方案通常用于高性能和高效电机驱动。高性能电机控制的特点包括电机的全速平稳旋转、零速度时的全扭矩控制以及迅捷的加速和减速。为了实现这种控制,矢量控制技术可用于永磁同步电机。矢量控制技术通常也称为磁场定向控制。矢量控制算法的基本思路就是将一个定子电流分解为磁场生成的分量和扭矩生成的分量。两个分量都可以在分解后单独控制。然后,电机控制器 (矢量控制器) 的结构就像单独激励的直流电机一样,可简化永磁同步电机的控制。

永磁同步电机解决方案

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