Sensorless-control of the synchronous reluctance motor

Author

Lagerquist, Rolf ; Boldea, Ion ; Miller, Tim J E

Author_Institution

Corp. Res. & Technol, Danfoss A/S, Nordberg, Denmark

Volume

30

Issue

3

fYear

1994

Firstpage

673

Lastpage

682

Abstract

In this paper a sensorless closed-loop speed control for the synchronous reluctance motor is presented. The sensorless control is based on the torque vector control algorithm. It has been implemented using a high-speed digital processor DSP96002. Experimental results for a 120 W axially-laminated synchronous reluctance motor are presented and compared with operation with a speed sensor and simulations. A base speed range of 400-1500 RPM has been achieved. The top speed was extended to 2750 RPM using flux-weakening. The drive can be applied a full-load step-change within this speed range without losing synchronism

Keywords

closed loop systems; digital control; digital signal processing chips; machine control; power engineering computing; reluctance motors; torque control; velocity control; 120 kW; axially-laminated motor; flux-weakening; full-load step-change; high-speed digital processor DSP96002; sensorless closed-loop speed control; synchronism; synchronous reluctance motor; torque vector control algorithm; Educational institutions; Equations; Industry Applications Society; Inverters; Machine vector control; Reluctance motors; Rotors; Sensorless control; Synchronous motors; Velocity control;

fLanguage

English

Journal_Title

Industry Applications, IEEE Transactions on

Publisher

ieee

ISSN

0093-9994

Type

jour

DOI

10.1109/28.293716

Filename

293716