基于滑模矢量控制的异步电机调速系统

由于异步电机是高阶、非线性、强耦合的多变量系统，难以实现高性能的调速，为此本文在矢量控制基础上，建立了滑模矢量控制异步电机调速系统。首先对系统进行矢量变换，构建电流滞环跟踪PWM矢量变频调速系统，使系统的响应速度增快；其次加入滑模控制，增加系统的鲁棒性和抗干扰能力。最后对异步电机调速系统的模型进行仿真实验，结果表明，增强了滑模矢量控制调速系统负载的抗干扰性，减少了超调量，提高了系统的响应速度。

Vector based on sliding mode control for asynchronous motor speed system

As a result of asynchronous motor is a high order,nonlinear,strong coupling of multi-variable system,it is difficult to achieve high performance speed control.In order to these problems,the present paper built a model to asynchronous motor speed based on sliding mode vector control.First the paper proposed that vector variable frequency speed should be transformed,the system designed to ensure improve the response speed of the system.Moreover,sliding mode control system has strong robustness and anti-interference ability.Lastly a simulation experiment was conducted on model of asynchronous motor speed control system of load disturbance has strong,reduce the overshoot and improve the response speed of the system.