Improving the start and restart behavior through state recognition of AC drives

Author

Pan, Hangwen ; Springob, Lothar ; Holtz, Joachim

Author_Institution

Wuppertal Univ., Germany

Volume

2

fYear

1997

fDate

3-6 Aug 1997

Firstpage

589

Abstract

The paper presents control strategies for abnormal operating conditions of AC motor drive systems. These improve the total performance as well as the ruggedness of the system. Two methods to start a rotating motor through state recognition are described. Two cases are distinguished according to whether the back EMF exists or not. In either case, normal operation can be reestablished as fast as possible on return of the power supply following a power interruption. Discussions and experimental results are presented for both failure conditions, based on V/f control and on sensorless field oriented control

Keywords

AC motor drives; control system analysis; control system synthesis; electric current control; frequency control; machine control; machine testing; machine theory; starting; voltage control; AC motor drive systems; V/f control; abnormal operating conditions; back EMF; control simulation; control strategies; current control design; failure conditions; power interruption; power supply restoration; restarting behavior improvement; sensorless field oriented control; starting behavior improvement; state recognition; Air gaps; Circuits; Control systems; Frequency; Induction motors; Power supplies; Production; Pulse width modulation inverters; Sensorless 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.1997.638246

Filename

638246