Transient response of speed sensorless control method based on phase difference [for induction motors]

Author

Tsuchiya, Junichi ; Watanabe, Kazuhiro ; Simizu, Toshihisa ; Kimura, Gunji ; Watanabe, Ikuo ; Naniwa, Koji

Author_Institution

Dept. of Electr. Eng., Tokyo Metropolitan Univ., Japan

Volume

2

fYear

1997

fDate

3-6 Aug 1997

Firstpage

559

Abstract

A simple speed control scheme is needed for small induction motors. Here, the authors proposed a simple method in which the motor´s load torque is estimated from the phase difference between the stator current and the stator voltage, and the drive frequency is calculated from the estimated torque. As a result, the average speed of the induction motor is kept constant. This paper presents the principle of this method and the transient responses of torque fluctuations and speed commands with a 90 W induction motor

Keywords

control system analysis; control system synthesis; induction motors; machine control; machine testing; machine theory; parameter estimation; small electric machines; transient analysis; transient response; velocity control; 90 W; control design; control simulation; drive frequency calculation; load torque estimation; phase difference; small induction motors; speed commands; speed sensorless control; stator current; stator voltage; torque fluctuations; transient response; Fluctuations; Frequency estimation; Induction motors; Phase estimation; Sensorless control; Stators; Torque; Transient response; Velocity control; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Conversion Conference - Nagaoka 1997., Proceedings of the

Conference_Location

Nagaoka

Print_ISBN

0-7803-3823-5

Type

conf

DOI

10.1109/PCCON.1997.638230

Filename

638230