The method of optimal identification of linear dynamic plant with the example of identification of drive with multi-mass load

The paper considers the problem of identification of parameters of linear dynamic plant under conditions when just the output signal is measured and no prior information about the disturbances is available. The modification of the known state-variable filter method is proposed. This modification allows to choose the filter parameters in the optimal way based on the experimental data. The proposed method is compared with the instrumental variable method. The results of numerical simulation of identification of the plant with the known true values of parameters as well as the results of identification of the drive with multi-mass load are given.