Title :
Studies on a sensorless initial rotor position estimating method for hybrid stepping motors
Author :
Anzai, Y. ; Nishikata, S. ; Tatsuta, F.
Author_Institution :
Tokyo Denki Univ., Tokyo, Japan
Abstract :
A new sensorless initial rotor position estimating method for hybrid stepping motors is proposed. The proposed method is based on the relationships between the maximum electromotive forces (emf) induced in the nonexcited windings with respect to the rotor position when a winding is excited by DC voltage source. An accurate estimation for the initial rotor position can be achieved with the proposed method, enabling the motor to control precisely.
Keywords :
machine windings; stepping motors; hybrid stepping motors; maximum electromotive forces; nonexcited windings; position estimation method; sensorless initial rotor; Circuits; Diodes; Magnetic flux; Optical sensors; Permanent magnet motors; Rotors; Sensorless control; Stators; Testing; Voltage; hybrid stepping motor; initial rotor position estimation; sensorless drive; stepping motor;
Conference_Titel :
Electrical Machines and Systems, 2009. ICEMS 2009. International Conference on
Conference_Location :
Tokyo
Print_ISBN :
978-1-4244-5177-7
Electronic_ISBN :
978-4-88686-067-5
DOI :
10.1109/ICEMS.2009.5382705
