A modified voltage model flux estimation of induction motors

Author

Zhao, Kun ; Lin, Fei ; You, Xiaojie

Author_Institution

Sch. of Electr. Eng., Beijing Jiaotong Univ., Beijing

fYear

2008

fDate

17-20 Oct. 2008

Firstpage

94

Lastpage

97

Abstract

This paper presents a new solution, which can completely remove the DC offset and make the dynamic error of flux observation smaller when using the modified voltage model compensated by rotor flux oriented current model. The modified voltage model with error compensation not only completely eliminates the integration drift, but also realizes errorless flux estimation in steady state and dynamic state. Both the simulation and experimental results on a prototype of 2.2 kW IM VC system show that the performance of the system especially in low speed region has been improved remarkably. This also verifies the effectiveness of the modified voltage model compensated by rotor flux oriented current model.

Keywords

induction motors; rotors; DC offset; error compensation; flux observation dynamic error; induction motors; power 2.2 kW; rotor flux oriented current model; voltage model flux estimation; Error compensation; Estimation error; Inductance; Induction motors; Rotors; Sensorless control; State estimation; Stators; Steady-state; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Machines and Systems, 2008. ICEMS 2008. International Conference on

Conference_Location

Wuhan

Print_ISBN

978-1-4244-3826-6

Electronic_ISBN

978-7-5062-9221-4

Type

conf

Filename

4770656