基于无差拍控制逆变器的负载性质在线识别及参数估算方法

无差拍控制是一种基于对象精确数学模型的控制方法,其不足是控制器参数对控制对象参数的依赖性很强,对象参数变化,要求控制器参数也作相应变化,否则,会造成很大的控制误差。该文结合无差拍控制逆变器的特点,提出了一种负载性质在线识别和参数估算的新方法,很好地解决了传统无差拍控制逆变器控制器参数难与控制对象参数精确配合的问题。通过计算机仿真,证明了该方法的切实可行性。

Load properties on-line recognition and parameter estimation based on deadbeat control inverter

The deadbeat control is based on precise mathematics model of the object. The disadvantage of this control method is that the parameters of the controller depend on the parameters of the control object. When the parameters of the object change, it demands the parameters of the controller changing, or it will cause a large control error. This paper presents a new method for load properties on-line recognition and parameters estimation according to the characteristic of the deadbeat control inverter. This method solves the problem that the controller parameters do not match with the control object parameters which exists in the traditional deadbeat control inverter. The validity and feasibility of this proposed method is verified by simulations.