Title :
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
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;
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
DOI :
10.1109/VPPC.2008.4677543
