A Novel V/f Scalar Controlled Induction Motor Drives with Compensation Based on Decoupled Stator Current

Author

Luo, Hui ; Wang, Qingyi ; Deng, Xin ; Wan, Shuyun

Author_Institution

Huazhong Univ. of Sci. & Technol., Wuhan

fYear

2006

fDate

15-17 Dec. 2006

Firstpage

1989

Lastpage

1994

Abstract

A novel open-loop scalar control method for induction motor that provides desirable operation in low frequency is presented. The control scheme is based on the popular constant volts per hertz (V/F) only using the current sensors. Based on the mathematical model of the induction motor, the rotor flux vector is estimated to decouple the stator current. The slip frequency and the current-resistant (IR) stator voltage drop are estimated and compensated based on flux and torque component of the stator current in the rotor-flux oriented reference frame. It shows that, by using the proposed method, the speed can be controlled down to 1Hz with full load torques.

Keywords

induction motor drives; machine vector control; current sensors; current-resistant stator voltage drop; decoupled stator current; open-loop scalar control method; rotor flux vector; rotor-flux oriented reference frame; scalar controlled induction motor drives; slip frequency; Couplings; Frequency estimation; Induction motor drives; Induction motors; Open loop systems; Rotors; Stators; Tellurium; Torque control; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Technology, 2006. ICIT 2006. IEEE International Conference on

Conference_Location

Mumbai

Print_ISBN

1-4244-0726-5

Electronic_ISBN

1-4244-0726-5

Type

conf

DOI

10.1109/ICIT.2006.372556

Filename

4237878