给出了无模型控制的定义，并对已存在的无模型控制方法进行了分类。
The definition and classification are given for the several existing model-free control (MFC) methods.
此无模型控制方法非常适用于实际的模型参数难以辨识，且是时变的非线性系统。
The model-free control is especially useful for real nonlinear systems whose model parameter are very difficult to be identified and time varying.
对非难控点，在应用中，无模型控制方法除设定值外，几乎不需设定任何其他参数。
For those applications where control is not difficult, except setting values, the model-free method almost does not require the user to set any other parameters.
无模型控制方法非常适用于实际的阶数难以知道或难以辨识，且是时变的非线性系统。
The model-free control is especially useful for real nonlinear systems whose orders and modeling are very difficult to be known and time varying.
无模型控制方法具有较好的抑制干扰的能力，用无模型控制方法对多变量耦合系统进行控制可收到良好的效果。
Model free control method has strong ability of resisting disturbance, and better control effect of multivariable coupling system is obtained using model free control method.
无模型控制方法在实际应用中收到了良好的效果，因为其具有适应性、抗干扰能力、解耦性能和强制稳定能力等一系列优秀的性能。
The reasons are analyzed, and the feasible approach to solve the problems is introduced, one of which is the model free control method.
本文介绍了一种可互换模型参考自适应方法实现对电机转速和定子电阻的辨识，并将其应用于异步机的无速度传感器直接转矩控制中。
A mutual model reference adaptive method for the rotor speed and stator resistance identification is proposed in this paper to implement a speed sensorless direct torque control of induction motors.
本文介绍了一种新的无模型专家控制器，并给出相应的理论和构造方法。
This paper introduces a new non-model expert controler, and gives relevant theory and structural method.
针对感应电机无速度传感器磁场定向控制系统，提出一种基于电压模型的改进转子磁链观测方法。
An improved rotor flux estimator based on voltage model was proposed for speed sensorless field-oriented vector controlled induction motor drives.
根据无模型自适应技术的特点，提出了一种模糊无模型自适应控制方法。
A fuzzy model-free adaptive control method is presented in this paper.
针对感应电机无速度传感器磁场定向控制系统，提出一种基于电压模型的改进转子磁链观测方法。
The paper introduces the principle and the math models of asynchronous modulation system by voltage model rotor magnetic chain vector control.
针对感应电机无速度传感器磁场定向控制系统，提出一种基于电压模型的改进转子磁链观测方法。
The paper introduces the principle and the math models of asynchronous modulation system by voltage model rotor magnetic chain vector control.
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