The Two-Mass System Parameter Identification With Levenberg-Marquardt Algorithm

Abstract

This paper is focused on the parameter identification of the Two-Mass mechanical flexible system for motor drive applications. The whole methodology is based on the amplitude frequency characteristic given by the Welch spectrum analysis method. Then, an initial estimate of the plant parameters is extracted from the amplitude frequency characteristic and it is used as the starting point for the Levenberg-Marquardt algorithm to enhance the parameter estimation.