Stability analysis and suppression control of rotor oscillation for stepping motors by Lyapunov´s direct method

Author

Senjyu, Tomonobu ; Uezato, Katsumi

Author_Institution

Fac. of Eng., Ryukyus Univ., Okinawa, Japan

Volume

10

Issue

3

fYear

1995

fDate

5/1/1995 12:00:00 AM

Firstpage

333

Lastpage

339

Abstract

Stepping motors are used as the driver for positioning in control systems. It is well-known that the transient response of a stepping motor is generally oscillatory in the case of open-loop control. The rotor oscillation must be suppressed in quick positioning applications. In this paper, the stability analysis and the suppression control of rotor oscillations of variable reluctance stepping motors are studied by Lyapunov´s direct method. Since the motor is a nonlinear system, the method is useful for analyzing the stability of the motor. The suppression control of rotor oscillations is achieved by excitation control of phase windings using the Lyapunov function. The validity of this method is examined by experiments

Keywords

Lyapunov methods; machine theory; mechanical variables control; oscillations; position control; reluctance motors; rotors; stability; stepping motors; transient analysis; transient response; Lyapunov´s direct method; motor stability; nonlinear system; open-loop control; quick positioning applications; rotor oscillation; stability analysis; stepping motors; suppression control; transient response; variable reluctance stepping motors; Control systems; Damping; Equations; Lyapunov method; Nonlinear systems; Open loop systems; Reluctance motors; Rotors; Stability analysis; Stability criteria;

fLanguage

English

Journal_Title

Power Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0885-8993

Type

jour

DOI

10.1109/63.387999

Filename

387999