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Laboratory verification of modeling for a cycloconverter-fed microprocessor-controlled self-synchronous motor

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2 Author(s)
Cathey, J.J. ; Dept. of Electr. Eng., Kentucky Univ., Lexington, KY ; Gorman, S.F.

The first known numerical simulation is presented of a cycloconverter-link self-synchronous motor drive operated by a discrete-time speed controller. Theoretically predicted and laboratory-measured transient and steady-state performances are compared to assess the accuracy of the model. The correlation between predictions made by the average value of motor phase current base simulation and the laboratory-measured performance shows that the model is quite adequate for steady-state analysis. Furthermore, the model offers close prediction of speed during transient conditions, indicating that the associated half-cycle average values of current and torque were reasonably accurate, although the capability of measuring the variables was not available. In addition, the general describing equations of motor phase currents during the commutation overlap interval are derived and numerically solved. Measured and predicted commutation overlap intervals for steady-state conditions are compared

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Power Electronics, IEEE Transactions on  (Volume:3 ,  Issue: 4 )