Title :
A consideration on influence of reduction of DC-link capacitance on position sensorless control for permanent magnet synchronous motor
Author :
Karino, M. ; Hoshi, Nobukazu ; Haruna, Junnosuke
Author_Institution :
Dept. of Electr. Eng., Tokyo Univ. of Sci., Noda, Japan
Abstract :
In general, electrolytic capacitor is used in AC drive system as the smoothing capacitor. Thus, the product lifetime is decided by the electrolytic capacitor mainly. Therefore, the lifetime extension is expected by exchanging the electrolytic capacitor for film capacitor. In this paper, the influence of reduction of DC-link capacitance on a position sensorless control for permanent magnet synchronous motor is clarified. As a result, it was understood that average estimated angle error is lower when the DC-link capacitance is large.
Keywords :
electrolytic capacitors; machine control; permanent magnet motors; position control; synchronous motors; AC drive system; DC-link capacitance reduction; electrolytic capacitor; film capacitor; permanent magnet synchronous motor; position sensorless control; product lifetime; smoothing capacitor; Capacitance; Capacitors; Inverters; Load modeling; Permanent magnet motors; Sensorless control; Torque; DC-link voltage ripple; estimated angle error; permanent magnet synchronous motor; sensorless control; smoothing capacitor;
Conference_Titel :
Electrical Machines and Systems (ICEMS), 2012 15th International Conference on
Conference_Location :
Sapporo
Print_ISBN :
978-1-4673-2327-7
