Title :
Sensorless commutation of micro PMSMs for high-performance high-speed applications
Author :
Zhang, J. ; Jiang, Q.
Author_Institution :
Dept. of Syst. Eng., Arkansas Univ., Little Rock, AR
Abstract :
This paper presents a preliminary analysis of a sensorless sinusoidal commutation of micro slotless PMSMs which can be used in high-performance, high-speed applications. Since the inductance of a micro slotless PMSM is extremely small, three-phase back electromotive forces (BEMFs) can be estimated with a first-order delay filter. The terminal phase voltages of the micro PMSM are generated based on the estimated BEMFs and a required current amplitude. The resulted terminal voltages are sinusoidal and almost synchronous to BEMFs in a high operating-speed range
Keywords :
commutation; electric potential; high-speed techniques; micromotors; permanent magnet motors; synchronous motors; first-order delay filter; high-performance high-speed applications; micro PMSM; permanent magnet synchronous motors; sensorless sinusoidal commutation; three-phase back electromotive forces; Amplitude estimation; Commutation; Delay estimation; Filters; Inductance; Micromotors; Permanent magnets; Phase estimation; Sensorless control; 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.2005.202870
