| Abstract |
This paper presents a comparative steady-state analysis of 3-phase Current Source Converter fed induction motors. The converter-motor system is modeled by three different models of increasing complexity, taking into account, the commutation process, the machine saturation, the variation of the motor counter EMF during commutation, the phase-shift of the fundamental line current with respect to the ideal current waveform due to finite coommutation time, the stator resistance, and the complete machine representation. Iterative computations of the trancendental and the closed-form equations are realized to obtain analysis, waveforms, characteristics, and system design criteria. The computed results of the three models are compared with the laboratory test results on two machines. The computed results match very closely with the laboratory test results. |
