Time and frequency domain identification and analysis of a Permanent Magnet Synchronous Servo Motor
Journal
Journal of the Chinese Institute of Engineers
Journal Volume
29
Journal Issue
4
Pages
683-695
Date Issued
2006
Date
2006
Author(s)
Abstract
This study employed the approach of non-linear autoregressive moving average model with exogenous inputs (NARMAX) to analyze the dynamics of a Permanent Magnet Synchronous Motor (PMSM). The non-linearity in PMSM including cogging force, reluctance force and force ripple is difficult to estimate. By using the NARMAX approach, thrust-speed relationship and thrust-position relationship could be analyzed by identifying both time and frequency domain models of the system. The frequency domain analysis is studied by mapping the discrete-time NARMAX models into generalized frequency response functions (GFRFs) to reveal the non-linear coupling between the various input spectral components and the energy transfer mechanisms in the system. From the results, the interpretation of the higher-order GFRFs has been comprehensively studied and non-linear effects have been related to the physical models of the systems. © 2006, Taylor & Francis Group, LLC.
Subjects
Frequency response functions; Identification; Non-linear system
Other Subjects
Energy transfer; Frequency domain analysis; Frequency response; Identification (control systems); Mathematical models; Nonlinear systems; Permanent magnets; Time domain analysis; Frequency response functions; Identification; non-linear system; NARMAX; Permanent Magnet Synchronous Motor (PMSM); Servomotors
Type
journal article
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