Sensorless operation of a thyristorized commutatorless series motor drive

Author

Mukherjee, Kaushik ; SenGupta, Sabyasachi ; 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

37104

Firstpage

950

Abstract

This paper presents a new strategy of implementing a sensorless, load-commutated, thyristorized 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, followed by the description of the scheme of changeover from the "start" to the "sensorless running" mode. Results of the experimental studies of the sensorless drive are presented. Finally, important features of this sensorless implementation are mentioned

Keywords

DC motors; invertors; machine control; thyristor motor drives; inverter-driven commutatorless motor; load commutated inverter; machine control; position encoder; sensorless operation; sensorless running model; thyristorized DC commutatorless motor; thyristorized commutatorless motor drive; Circuits; Commutation; DC motors; Inverters; Machine windings; Motor drives; Rotors; Synchronous machines; Synchronous motors; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Machines and Systems, 2001. ICEMS 2001. Proceedings of the Fifth International Conference on

Conference_Location

Shenyang

Print_ISBN

7-5062-5115-9

Type

conf

DOI

10.1109/ICEMS.2001.971836

Filename

971836