Title :
Study of the influence of the leading angle on the operating characteristics of a current source inverter fed synchronous motor drive system
Author_Institution :
Fac. of Electr. Eng., Politeh. Univ. of Bucharest, Bucharest, Romania
Abstract :
The present study examines limitations of the torque capabilities of a current source inverter (CSI) fed synchronous motor drive system using leading angle-dependent commutation inductance and considering the presence of damper winding in both direct and quadrature axis. A computing program developed in Matlab-Simulink for the complete model of the CSI fed synchronous motor considering the sub-transient quantities allows the evaluation of electromagnetic torque and damper flux linkages. Also, the influence of variable finite value of the d.c. link inductance on the minimum frequency at which the natural commutation is still safe, is studied. The computed and simulated results are validated by comparison with the measurements carried out on an experimental bench (with a 3.2 kW synchronous motor) at load motor operation.
Keywords :
electric machine analysis computing; invertors; mathematics computing; synchronous motor drives; CSI; Matlab-Simulink; computing program; current source inverter fed synchronous motor drive system; damper flux linkages; damper winding; dc link inductance; direct axis; electromagnetic torque; leading angle-dependent commutation inductance; operating characteristics; power 3.2 kW; quadrature axis; subtransient quantities; variable finite value; Commutation; Inductance; Shock absorbers; Synchronous motors; Torque; Windings; AC motors; computational modeling; computer simulation; control systems; torque control; variable speed drives;
Conference_Titel :
Electrical Machines (ICEM), 2012 XXth International Conference on
Conference_Location :
Marseille
Print_ISBN :
978-1-4673-0143-5
Electronic_ISBN :
978-1-4673-0141-1
DOI :
10.1109/ICElMach.2012.6350012
