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Digital computer simulation of three-phase induction machine dynamics-a generalized approach

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1 Author(s)
Ghani, S.N. ; Dept. of Electr. & Electron. Eng., Newcastle upon Tyne Polytech., UK

A unified and universally applicable method is proposed for simulating the dynamic behavior of a large, interconnected, nonlinear, time-varying physical system containing one or more three-phase induction machines as subsystems. The total system may also contain static power conversion, conditioning, or control equipment in which switching occurs. The procedure is simple yet accurate and independent of any specific system. A new time-domain static network model of a three-phase induction motor of wound rotor variety is presented. The model can account for unbalance on both sides of the airgap provided the structure of the windings remains unaltered. It has inherent capability for accounting iron losses as well. Similar network models can also be derived to represent a machine with asymmetrical internal faults that split one or more phases, on either or both sides of the airgap, into multiple sections with or without interconnections. A previously published model of a triac has also been extended

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Industry Applications, IEEE Transactions on  (Volume:24 ,  Issue: 1 )