A New PSpice Implementation of a Three-Phase Induction Machine Model

The paper shows a new version of a three-phase model of the induction machine which can be implemented in PSpice program. The voltage equations and the flux expressions in the three-phase mathematical model are rewritten in a convenient form. After the analyzing of the previous implementations in PSpice, a simplified version of the equivalent electrical scheme was proposed. The computing capacity of the type E voltage sources was intensively used in order to reduce the number of nodes of the equivalent circuit. The proposed implementation can be designed as a subcircuit. The main program can call this subcircuit when needed. The proposed implementation proved to be fast and easy to use. No convergence issues were reported. It is extremely useful in a wide range of special situations which requires the use of three-phase model.