Position sensorless synchronous reluctance motor drive using the stator phase voltage third harmonic

Author

Kreindler, Liviu ; Testa, Antonio ; Lipo, Thomas A.

Author_Institution

Polytech. Inst. of Bucharest, Romania

fYear

1993

fDate

2-8 Oct 1993

Firstpage

679

Abstract

A direct field orientation controller for synchronous reluctance motors based on determination of the spiral position of the air gap flux from the third harmonic component of the stator phase voltages is presented. The control utilizes the spatial saturation harmonic components rotating at synchronous frequency that are generated in the air gap flux when the machine operates in a saturated condition. When the machine is wye connected, the sum of three-phase voltages results in a signal dominated by the third harmonic component. Using this signal, a completely sensorless drive is implemented which can successfully synchronously start the reluctance motor from zero speed. Extensive experimental results showing the effect of different estimation schemes and practical problems of detecting the flux position from the harmonic voltage signal are presented

Keywords

electric current control; electric drives; harmonics; machine control; reluctance motors; stators; air gap flux; direct field orientation controller; flux position detection; position sensorless reluctance motor drive; saturated operating condition; stator phase voltage third harmonic; Costs; Couplings; Iron; Phase measurement; Reluctance motors; Rotors; Stators; Synchronous motors; Transducers; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Society Annual Meeting, 1993., Conference Record of the 1993 IEEE

Conference_Location

Toronto, Ont.

Print_ISBN

0-7803-1462-X

Type

conf

DOI

10.1109/IAS.1993.298878

Filename

298878