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Temperature-Dependent Modeling of Thermoelectric Elements

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Document pages: 6 pages

Abstract: Active thermal control is crucial in achieving the required accuracy andthroughput in many industrial applications, e.g., in the medical industry,high-power lighting industry, and semiconductor industry. ThermoelectricModules (TEMs) can be used to both heat and cool, alleviating some of thechallenges associated with traditional electric heater based control. However,the dynamic behavior of these modules is non-affine in their inputs and state,complicating their implementation. To facilitate advanced control approaches ahigh fidelity model is required. In this work an approach is presented thatincreases the modeling accuracy by incorporating temperature dependentparameters. Using an experimental identification procedure, the parameters areestimated under different operating conditions. The resulting model achievessuperior accuracy for a wide range of temperatures, demonstrated usingexperimental validation measurements.

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