Title :
Dynamic performance of a brushless DC tubular drive system
Author :
Akmese, R. ; Eastham, J.F.
Author_Institution :
Sch. of Electr. Eng., Bath Univ., UK
fDate :
9/1/1989 12:00:00 AM
Abstract :
The authors describe the computer-aided analysis of the dynamic performance of a tubular linear machine system with permanent magnetic cogging forces. These forces include not only the conventional tooth cogging force apparent in both linear and rotary machines but also a force unique to permanent magnet linear machines that is due to the finite length of the stator. System equations which describe both the machine and the inverter supply are solved by a step-to-step numerical method to find the dynamic performance of the machine in an oscillator mode. The work is verified by experimental results obtained for a practical model
Keywords :
DC motors; electric drives; electric machine analysis computing; finite element analysis; linear motors; brushless DC tubular drive system; computer-aided analysis; dynamic performance; finite element techniques; finite stator length; inverter supply; numerical method; oscillator mode; permanent magnet linear machines; permanent magnetic cogging forces; Circuit simulation; Finite element methods; Forging; Induction machines; Magnetic analysis; Magnetic circuits; Permanent magnets; Power system modeling; Stators; Synchronous motors;
Journal_Title :
Magnetics, IEEE Transactions on
