Speed estimation for induction machines using imaginary power

Author

Betz, R.E. ; Summers, T.

Author_Institution

Sch. of Electr. Eng. & Comput. Sci., Newcastle Univ., NSW, Australia

Volume

1

fYear

2003

fDate

12-16 Oct. 2003

Firstpage

117

Abstract

This paper presents a novel algorithm for sensorless speed estimation for induction machines. The algorithm uses the instantaneous imaginary power flowing into the machine as the basis of the estimation technique. The algorithm is simple and requires minimal parameter knowledge. Furthermore, being based on imaginary power, it does not suffer from accuracy problems at low speeds due to the influence of stator resistance. The paper outlines the algorithm and then presents simulation and experimental results on an induction machine drive system.

Keywords

angular velocity control; feedback; induction motor drives; machine vector control; parameter estimation; rotors; field oriented control; imaginary power; induction motor drive system; induction motors; minimal parameter knowledge; rotor speed estimation; sensorless speed estimation; speed controller; speed feedback; stator resistance; Computer science; Costs; Electrical resistance measurement; Frequency estimation; Induction machines; Robustness; Rotors; Sensor systems and applications; Signal processing algorithms; Stators;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Conference, 2003. 38th IAS Annual Meeting. Conference Record of the

Print_ISBN

0-7803-7883-0

Type

conf

DOI

10.1109/IAS.2003.1257493

Filename

1257493