Title :
A new on-line dead-time compensation method based on time delay control
Author :
Kim, Hyun-Soo ; Kim, Hag-Wone ; Youn, Myung-Joong
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Korea Adv. Inst. of Sci. & Technol., Taejon, South Korea
Abstract :
In this paper, an on-line dead-time compensation method based on a time delay control approach is presented. The disturbance voltages caused by the dead time are estimated in an on-line manner by the time delay control without any additional circuits and off-line experimental measurements. The estimated disturbance voltages are fed to voltage references in order to compensate the dead-time effects. The proposed method is applied to a PM synchronous motor drive system and implemented by using software of a digital signal processor (DSP) TMS320C31. Experiments are carried out for this system and the results well demonstrate the effectiveness of the proposed method
Keywords :
PWM invertors; compensation; delays; digital control; digital signal processing chips; machine control; parameter estimation; permanent magnet motors; synchronous motor drives; DSP TMS320C31; PM synchronous motor drive; PWM inverters; dead-time effects compensation; digital signal processor; disturbance voltages estimation; on-line dead-time compensation method; time delay control; voltage references; Circuits; Delay effects; Delay estimation; Digital signal processors; Hardware; Leg; Pulse width modulation inverters; Synchronous motors; Time measurement; Voltage control;
Conference_Titel :
Industrial Electronics Society, 2001. IECON '01. The 27th Annual Conference of the IEEE
Conference_Location :
Denver, CO
Print_ISBN :
0-7803-7108-9
DOI :
10.1109/IECON.2001.975949
