Sensorless implementation of an SCR-based commutatorless series motor drive

Author

Mukherjee, Kaushik ; SenGupta, Sab Yasachi ; Bhattacharya, Tapas Kumar ; Bhadra, Sailendra N. ; Chattopadhyay, Ajit K.

Author_Institution

Dept. of Electr. Eng., Indian Inst. of Technol., Kharagpur, India

Volume

2

fYear

2001

fDate

2001

Firstpage

1494

Abstract

This paper presents a new strategy of implementing a sensorless, load-commutated, silicon-controlled-rectifier (SCR) inverter-driven commutatorless series motor (CLSM) drive. The drive is started with the help of a position encoder, but, after four-five cycles, the operation is changed over to the "sensorless running" mode at about 10% of rated speed. The strategy, description and illustrative waveforms of the sensorless implementation are presented. It is followed by the description of the scheme of changeover from the "start" to the "sensorless running" mode. Finally, results of the experimental transient and steady state studies of the sensorless drive are furnished

Keywords

commutation; invertors; starting; synchronous motor drives; thyristor convertors; thyristor motor drives; SCR-based commutatorless series motor drive; current source inverter; inverter-driven commutatorless drive; load-commutated series motor drive; position encoder; sensorless commutatorless series motor drive; sensorless running mode; start mode; steady state studies; synchronous motor drive; transient studies; Circuits; Commutation; DC motors; Inverters; Motor drives; Reluctance motors; Sensorless control; Synchronous motors; Thyristors; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics Society, 2001. IECON '01. The 27th Annual Conference of the IEEE

Conference_Location

Denver, CO

Print_ISBN

0-7803-7108-9

Type

conf

DOI

10.1109/IECON.2001.976009

Filename

976009