Mathematical modelign and simulation of the 4-phase 8/6 switched reluctance motro (SRM) drive is presente,d using Matlab 5.2 with Simulink 2.0 environment, The architecture of hte model consists of an 8/6 SRM with 4 opto-electronic sensor angular transducer, a unipolar PWM inverter and a logic control unit. The large number of parameters and variables recommends Simulink model as being the msot approriate for hte ivnestigation of SRM drive by numerical simulation. There are considered voltage equations of the motor and a PWM of current source-type inverter. Logic control unit module allows the switching the inverter control among the five mdoes of operation: normal, boost, long-dwell, two-phase-on and brake. There are shown various simulaton resutls in respect to electrical and mechanical magnitudes and there is also given a comparison with experiemtnal results.
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