中文说明：
基于MATLAB软件的交流永磁同步电机调速系统研究。介绍了一种采用磁场定向理论控制交流永磁同步电机的调速系统，应用现代控制理论对电机直交轴耦合分量进行了解耦，并利用经典控制理论设计了电流环和角速度环调节器。MATLAB 仿真 结果证明了该方法的有效性，但系统调试时仍需根据具体情况适当调整以得到更理想的效果。
English Description：
Research on speed regulation system of AC permanent magnet synchronous motor based on MATLAB software. This paper introduces a speed regulation system of AC permanent magnet synchronous motor controlled by magnetic field orientation theory. The DC-AC coupling component of the motor is understood by using modern control theory, and the current loop and angular speed loop regulators are designed by using classical control theory. Matlab simulation