摘要
为了尽可能的简化异步机转速控制，该文利用了从本质上是一种非解耦的非线性反馈控制，即基于无源性的控制方法。它是从能量的角度来分析电机系统，并从中分出可以不必抵消的“无功力”。因此控制器得以简化。而该文在控制器设计过程中先利用该思想设计转矩控制器，但考虑转速是慢变量而做恒值处理。然后通过建立从转速误差到转矩的反馈控制来设计转速控制器。这样就保留了原方法控制器形式简单和鲁棒性好等优点。仿真分析表明通过对控制器参数的适当调整，控制系统可获得良好的动静态性能。所以在基于无源性的控制基础上，无需做复杂的修正就可以实现对转速的控制。
To maximally simplify the speed control for induction motor, this paper applied the torque control strategy, passivity based control. In essance, passivity based control is a undecoupling nonlinear feedback method. Using energy concept, it analyzes the motor system and finds out the “workless force”, which is unnecessary to be canceled. Therefore, the control is simplified. In this paper, the same torque controller is designed firstly. Then the feedback from speed error to torque reference is established to realize speed control, handling speed as a constant owing to its slowly changing property. As passivity based control, the designed speed controller has a simplicity and robustness. In addition, the simulation shows that the control system has good static and dynamic performance, through adjusting control parameter.
出处
《清华大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
1999年第7期29-32,共4页
Journal of Tsinghua University(Science and Technology)
基金
国家教委"211"工程项目
关键词
异步电机
转速控制
passivity
control
induction motors
