Title :
A low torque ripple PMSM drive for EPS applications
Author :
Liu, Guang ; Kurnia, Alex ; De Larminat, Ronan ; Desmond, Phil ; Gorman, Tony O.
Author_Institution :
Automotive Commun. & Electron. Syst. Group, Motorola Inc., Deer Park, IL, USA
Abstract :
This paper describes the practical design considerations of a low torque ripple permanent magnet synchronous motor (PMSM) drive for electric power steering (EPS) application. The impact of various controller elements on torque ripple performance is discussed in detail. The experimental results show that the low cost dc-link current sensing scheme used in the design can achieve excellent and consistent torque ripple performance (less than 2% peak-to-peak at 1 N.m.), and is well suited for EPS application.
Keywords :
automobiles; permanent magnet motors; synchronous motor drives; torque; electric power steering; low cost dc-link current sensing scheme; low torque ripple PMSM drive; permanent magnet synchronous motor drive; torque ripple controller elements; Automotive engineering; Costs; Current measurement; Digital signal processing; Motor drives; Operational amplifiers; Permanent magnet motors; Synchronous motors; Torque control; Vehicle driving;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 2004. APEC '04. Nineteenth Annual IEEE
Print_ISBN :
0-7803-8269-2
DOI :
10.1109/APEC.2004.1295965
