Inverter control during overload and following power interruption

Author

Seibel, Brian J. ; Kerkman, Russel J. ; Leggate, David

Author_Institution

Allen Bradley, Mequon, WI, USA

Volume

28

Issue

3

fYear

1992

Firstpage

567

Lastpage

573

Abstract

A frequency control method that interacts with a voltage-controlled current-regulated pulse-width modulated (VC-CRPWM) inverter to provide tripless operation during abnormal operating conditions is presented. Specifically, operation during and after a momentary overload and reconnection to a deenergized rotating motor under load is accomplished without experiencing overcurrent trips, knowledge of motor parameters, or velocity feedback. In addition, a stability study of the synchronous VC-CRPWM inverter that determines the effects of controller, motor, and load variations on the region of instability is performed

Keywords

controllers; electric current control; electric motors; electrical faults; frequency control; invertors; load (electric); pulse width modulation; stability; voltage control; PWM; controller; current control; electrical faults; frequency control; inverter; load; motor; overcurrent; overload; power interruption; reconnection; stability; synchronous invertor; tripless operation; voltage control; Acceleration; Control systems; Feedback; Frequency control; Industry Applications Society; Pulse inverters; Pulse modulation; Pulse width modulation inverters; Velocity control; Voltage control;

fLanguage

English

Journal_Title

Industry Applications, IEEE Transactions on

Publisher

ieee

ISSN

0093-9994

Type

jour

DOI

10.1109/28.137437

Filename

137437