Mathematical analysis of oscillation characteristics of permanent magnet synchronous motor

Author

Oswald, A. ; Herzog, H.-G. ; Haas, A.

Author_Institution

Fachgebiet Energiewandlungstechnik, Tech. Univ. Munchen, Munich, Germany

fYear

2010

fDate

6-8 Sept. 2010

Firstpage

1

Lastpage

5

Abstract

In a previous project a permanent magnet synchronous motor (BLDC) without damping winding was being constructed for the application in an x-ray microscope. When tested, above a certain speed level, the drive system started oscillating and finally lost its synchronism. Therefore a mathematical analysis of the system equations of the BLDC drive was carried out in order to identify the mechanism and criteria of stability within the system. The eigenvalues of the non-linear system of differential equations were computed in dependence of several parameters. The influences of drive speed, winding resistance and inductances on the stability behavior of the drive were investigated.

Keywords

differential equations; eigenvalues and eigenfunctions; mathematical analysis; permanent magnet motors; synchronous motor drives; differential equations; drive speed; eigenvalues; mathematical analysis; nonlinear system; oscillation characteristics; permanent magnet synchronous motor drive; stability behavior; winding inductances; winding resistance; x-ray microscope; Differential equations; Eigenvalues and eigenfunctions; Equations; Mathematical model; Numerical stability; Stability criteria; Brushless DC; Eigenvalue; Oscillation Characteristics; Permanent Magnet Motors; System Equations;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Machines (ICEM), 2010 XIX International Conference on

Conference_Location

Rome

Print_ISBN

978-1-4244-4174-7

Electronic_ISBN

978-1-4244-4175-4

Type

conf

DOI

10.1109/ICELMACH.2010.5608027

Filename

5608027