Operator-Based Robust Nonlinear Control for Calorimetric Power Loss Measurement System Using Peltier Device

This paper presents a method of operator-based nonlinear temperature control for a calorimeter using a Peltier device. The Peltier device has nonlinear characteristic and so it is not easy to design a controller which satisfies desired performance. Based on the concept of the Lipschitz operator and the robust right coprime factorization condition, nonlinear temperature controllers are designed for the model, and the closed-loop system's robust stability is guaranteed. Moreover, a tracking operator is designed to ensure the temperature tracking performance. Finally, simulation and experimental results are presented to show the effectiveness of the proposed design method.