Modelica libraries for dc machines, three phase and polyphase machines

Abstract

This paper presents two libraries, the basic Machines library which is released with Modelica standard library 2.1 as well as an ExtendedMachines library, both for modelling electric machines. The basic library provides the basic machines types such as dc machines, three phase induction machines, three phase permanent magnet synchronous machines and three phase reluctance machines. The three phase machine models are implemented on basis of space phasor theory. By contrast, the extended machines library models the winding topology of polyphase induction and permanent magnet synchronous machines. Such machine models can be used to simulate machines with arbitrary phase number such as large six phase induction machines or machines with winding asymmetries or even winding faults. The used winding models of the ExtendedMachines library are flexible enough to consider even higher field harmonics in future impementations.