Felgner, F.; Exel. L.; Nesarajah, M.; Frey, G.: Component-oriented Modeling of Thermoelectric Devices for Energy System Design. IEEE Transactions on Industrial Electronics, Vol. 61, No. 3, pp. 1301-1310, March 2014.
Thermoelectric devices are used in the form of Peltier Coolers and as Thermoelectric Generators, the latter producing electrical energy from waste heat, based on the Seebeck effect. In both cases, modeling of the thermoelectric device is a pre-requisite for the design and control verification of the resulting overall energy system. To this end, the model has to be integrated seamlessly in an overall system model containing other electrical, thermodynamic or even mechanical components. Following this premise, the article presents a component-based model for thermoelectric devices described in the Modelica® language. The model incorporates the temperature dependencies of decisive material properties (Seebeck coefficient, thermal conductivity, electrical resistivity) in 1D spatial resolution. With the help of few additional geometrical parameters, e.g. the thickness of thermoelectric legs, the model is capable to describe the dynamic behavior of the thermoelectric device in accordance with experimental results.