流体类负载下的异步交流电动机速度反推控制  

Baekstepping Control of Asynchronous Motor under the Fluid Load

作　　者：王强[1] 彭继慎[1] 宋绍楼[1] 

机构地区：[1]辽宁工程技术大学,123000

出　　处：《电机技术》2007年第2期14-17,共4页Electrical Machinery Technology

摘　　要：针对流体类负载的特点,提出一种基于非线性控制策略的反推控制,实现了速度闭环控制。根据异步电动机在按转子磁场定向的M—T旋转坐标系上的数学模型和矢量控制原理,得出定子励磁电流分量、定子转矩电流分量和电机转速的方程,并以这三个方程为基础,结合反推控制原理,设计出了速度反推控制算法。通过MATLAB仿真看出,使用该控制算法可以很好的实现跟踪给定速度,使流体类负载有很好的稳定性能。In view of the fluid class load characteristic, backstepping control based on the non-linear control strategy is proposed, which has realized the speed closed-loop control. According to mathematical model and the vector control principle of the asynchronous motor which is in the revolving M-T coordinate system based on the rotor magnetic field direction, it has obtained the stator exciting current component, the stator torque component of current and the electrical machinery rotational speed equation. Taking these three equations and backstepping control principle as the foundation, it designs backstepping control algorithm. Through the MATLAB simulation, it is proved that this control algorithm can realize tracking to the assigned speed and enable the fluid class load to have very good stable per formance.

关 键 词：流体负载 反推式控制 速度跟踪 异步交流电动机 

分 类 号：TM343[电气工程—电机]