Title :
On stability limit of a q-axis flux based sensorless vector control for induction motors
Author :
Tsuji, Mineo ; Matsuda, Shuji ; Hashimoto, Ryouhei ; Hamasaki, Sin-ichi ; Chen, Shuo
Author_Institution :
Nagasaki Univ., Nagasaki, Japan
Abstract :
We have proposed a q-axis flux observer based speed sensorless vector control for induction motors with stator resistance identification. A linear model of proposed system is derived and the trajectories of poles and zeros are shown to study the stability limit. A simulation program is developed including the effects of discrete algorithm of proposed method, PWM mechanism and the characteristic of IGBT. The system stability for various parameters are discussed in detail by comparing the experimental results with the simulation results.
Keywords :
induction motors; machine vector control; observers; poles and zeros; sensorless machine control; stability; IGBT characteristic; PWM mechanism; discrete algorithm; induction motors; linear model; poles and zeros; q-axis flux observer; simulation program; speed sensorless vector control; stator resistance identification; system stability; Electrostatic discharge; Induction motors; Machine vector control; Poles and zeros; Power electronics; Power system stability; Pulse width modulation; Stability analysis; Stators; Tellurium; detailed simulation; flux observer; induction motor; sensorless vector control; stability analysis;
Conference_Titel :
Power Electronics Conference (IPEC), 2010 International
Conference_Location :
Sapporo
Print_ISBN :
978-1-4244-5394-8
DOI :
10.1109/IPEC.2010.5542373
