Parameter estimation of two-mass mechanical loads in electric drives

Author

Saarakkala, Seppo E. ; Leppinen, Tuomo ; Hinkkanen, Marko ; Luomi, Jorma

Author_Institution

Sch. of Electr. Eng., Aalto Univ., Aalto, Finland

fYear

2012

fDate

25-27 March 2012

Firstpage

1

Lastpage

6

Abstract

This paper presents a method for parameter estimation of two-mass mechanical loads. A discrete-time polynomial model with an output error (OE) structure is used in parameter estimation. Four different identification setups are obtained when open-loop estimation and various possibilities of choosing the input and output signals in closed-loop estimation are considered. All four setups are analyzed, and the identifiabilities are compared. It is discovered that all four identification setups can be used to obtain reasonable parameter estimates.

Keywords

electric drives; parameter estimation; polynomials; closed-loop estimation; discrete-time polynomial model; electric drives; identification setup; open-loop estimation; output error structure; parameter estimation; two-mass mechanical load; Load modeling; Mathematical model; Parameter estimation; Resonant frequency; Torque; Torque control; Transfer functions; Two-mass system; electric drive; identification; parameter estimation; torsional oscillation;

fLanguage

English

Publisher

ieee

Conference_Titel

Advanced Motion Control (AMC), 2012 12th IEEE International Workshop on

Conference_Location

Sarajevo

Print_ISBN

978-1-4577-1072-8

Electronic_ISBN

978-1-4577-1071-1

Type

conf

DOI

10.1109/AMC.2012.6197104

Filename

6197104