感应电机调速系统新型滑动模解耦与自校正控制

A NOVEL SLIDING MODEL DECOUPLING AND SELF TUNNING CONTROL FOR INDUCTION MOTOR SPEED CONTROL SYSTEM

文章分析和设计了一类新型感应电机调速系统，整个系统分成内、外环。论文首先通过适当选择坐标框架，提出一个简明的感应电机数学模型，并以此为基础，在内环设计了一个滑动模转矩控制器，因而它不但可实现转矩和磁通的解耦控制，而且对电机参数变化和外界干扰还具有较强的鲁棒性。外环的设计则引入自校正控制器——零极点配置控制器（含实时参数辨识）。仿真结果表明，整个系统在外环采用自校正控制后能进一步提高系统的鲁棒性和改善动态跟踪性能。

A novel Induction motor speed control system has been analysised and designed in this paper.The whole system is separated into two parts.At first a simple mathmatic model of induction motor has been presented through select coodinate frame properly.Then a sliding mode torque and flux controller based on it has been designed.It not only can make torque and flux decoupling control successfully but also can make inner loop invariant to motor parameter variations and external disturbance.The outer loop's design is to use a self tunning regulator such as zero pole placement (with real time identification).Simulation has verified that the system has been more robust and has good tracking performance.