Analysis of dead-time effect and suppression on high power induction machines with voltage source inverter drive

Author

Lingyun, Gu ; Xuhui, Wen ; Yang, Hua

Author_Institution

Inst. of Electr. Eng., Chinese Acad. of Sci., Beijing

fYear

2008

fDate

3-5 Sept. 2008

Firstpage

1

Lastpage

5

Abstract

In the control of high power induction machine drives, the effect of dead time should not be neglected in the low-speed range, especially in the condition of low loads because it can seriously distort stator current waveform and generate torque ripple. This paper presents some theoretical analysis for the dead time effect in open-loop control and current closed-loop control, and analyzes the mechanism of current distortion with stator current across zero. Furthermore, a method used in current regulator of high power induction machine is proposed, and its feasibility is verified by simulation and experiment results.

Keywords

asynchronous machines; electric current control; electric drives; invertors; machine control; current closed-loop control; current distortion; dead-time effect; dead-time effect suppression; generate torque ripple; high power induction machines; open-loop control; stator current; stator current waveform; voltage source inverter drive; Drives; Induction generators; Induction machines; Inverters; Open loop systems; Power generation; Regulators; Stators; Torque control; Voltage; Induction machine control; current closed-loop control; current regulator; dead time;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicle Power and Propulsion Conference, 2008. VPPC '08. IEEE

Conference_Location

Harbin

Print_ISBN

978-1-4244-1848-0

Electronic_ISBN

978-1-4244-1849-7

Type

conf

DOI

10.1109/VPPC.2008.4677543

Filename

4677543