Title :
Sustained oscillation of an inverter-fed induction motor drive system and its stabilization
Author :
Li, Hongmei ; Hikihara, Takashi
Author_Institution :
Dept. of Electr. Eng., Hefei Univ. of Technol.
Abstract :
Sustained oscillation of rotor speed is often experienced in PWM inverter induction motor (IM) drive systems. In this paper the sustained oscillation phenomena is investigated from the point of view of Hopf bifurcation theory. The sufficient and necessary conditions for existence of limit cycle are presented to determine bifurcation set in plane of stator voltage versus stator frequency. This research indicates that bifurcation set exists in the condition of IM inherent instability. At last, it is shown that V/f curve can be set to stabilize the sustained oscillation of rotor speed and results are numerically verified
Keywords :
PWM invertors; bifurcation; induction motor drives; oscillations; stability; stators; Hopf bifurcation theory; PWM inverter; induction motor drive system; oscillation phenomena; rotor speed; stator frequency; stator voltage; sustained oscillation; Angular velocity; Bifurcation; Electric resistance; Frequency; Induction motor drives; Limit-cycles; Mathematical model; Pulse width modulation inverters; Stators; Voltage;
Conference_Titel :
Electrical Machines and Systems, 2005. ICEMS 2005. Proceedings of the Eighth International Conference on
Conference_Location :
Nanjing
Print_ISBN :
7-5062-7407-8
DOI :
10.1109/ICEMS.2005.202902
