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These models allow for dynamic simulation of machines with saturation and non-linear torque-current-angle characteristics. The developed hysteresis and transformer models were validated with in-house measurements.įurthermore, the Modelica.Magnetic library was extended by electrical machine models based on look-up tables. Compared to the simple transformer models already included in the Modelica Standard library, the models developed include a transformer’s magnetic subsystem and hence consider saturation and core losses. In addition, Modelica models of one- and three-phase transformers were developed. Simulation of static (ferromagnetic) and dynamic (eddy current) hysteresis allows for estimation of iron losses in transformers and electrical machines and hence, e.g., for subsequent simulation of heating. Technische Universität Dresden, where the library was originally developed, extended this library with hysteresis models. Both models were used for complex air conditioning system simulation e.g. XRG Simulation provided two fluid property models according to the Modelica.Media specification, one model for R134a and one model for humid air. To enable those design tasks, Modelica Libraries for media models, electromagnetic devices such as transformers and electrical machines and for wavelet analysis were developed or extended by a consortium of three partners.
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more electric aircraft or sustainable air-conditioning systems. The modelling language Modelica and libraries based upon it are excellently suited for model-based design of future aircraft systems, e.g.