Title :
Compensation of torque ripple
Author :
Brunsbach, B.-J. ; Henneberger, G. ; Klepsch, Th
Author_Institution :
Univ. of Technol., Aachen, Germany
Abstract :
Field harmonics cause torque oscillations that are opposed to the demands on accuracy of the speed of a permanent magnet excited synchronous machine. Aim of this paper is to describe the compensation of the torque oscillations by current modulation. The required current shape functions are given. No restrictions are made to the inductances xd,xq and the currents id, iq are made. The shape functions of the currents are derived from the machine´s real back emf. This method is verified by measurements
Keywords :
machine control; machine theory; oscillations; permanent magnet machines; synchronous machines; torque control; accuracy; back emf; current modulation; current shape functions; field harmonics; inductances; machine control; machine theory; oscillations; permanent magnet excited synchronous machine; torque ripple;
Conference_Titel :
Electrical Machines and Drives, 1993. Sixth International Conference on (Conf. Publ. No. 376)
Conference_Location :
Oxford
Print_ISBN :
0-85296-596-6
