Title :
A new algorithm for instantaneous speed and position estimation of surface-mounted permanent magnet synchronous motors
Author :
Yin, Jianwei ; Lee, Chi Kwan ; Hui, Shu Yuen Ron ; Shravastava, Y.
Author_Institution :
Dept. of Electr. & Electron. Eng., Univ. of Hong Kong, Hong Kong, China
Abstract :
This paper describes a patent-pending method that can be used to estimate the speed and position of surface-mounted permanent magnet synchronous motors (SMPMSM) with cylindrical rotor structure and sinusoidal back emf. The concept involves the use of the power inverter´s switching actions and switching current to provide instantaneous real-time information for extracting the speed information. The theory and algorithm are included to explain the proposed concept, which has been verified by simulations on a SMPMSM drive under the control of a sensorless speed control scheme.
Keywords :
angular velocity control; permanent magnet motors; position control; sensorless machine control; synchronous motor drives; SMPMSM drive; cylindrical rotor structure; instantaneous real-time information; instantaneous speed estimation; patent-pending method; position estimation; power inverter switching action; sensorless speed control scheme; sinusoidal back EMF; speed information extraction; surface-mounted permanent magnet synchronous motors; switching current; Australia; Couplings; Periodic structures; Switches; permanent magnet synchronous motor (PMSM); position estimation; sensorless control; speed estimation;
Conference_Titel :
ECCE Asia Downunder (ECCE Asia), 2013 IEEE
Conference_Location :
Melbourne, VIC
Print_ISBN :
978-1-4799-0483-9
DOI :
10.1109/ECCE-Asia.2013.6579146
