Dynamic Models of a Home Refrigerator

Abstract

Home refrigerators produce a substantial part of the annual power consumption in an average household. To further improve the efficiency of these devices, new intelligent control solutions are required. These solutions necessitate the behaviour modeling of the refrigerators.We seek models with as simple structure as possible, since future intelligent controllers may use such models in real time, thus their evaluation must be feasible even on simple microcontrollers. We investigate various dynamic models to describe the behavior of the refrigerator, i.e. the cool-down and warm-up phases.For model parameter identification real data was collected from a real home refrigerator. Data processing, modeling and the parameter identification were performed in MATLAB environment.

Modelling Building Energy Systems using Electric Circuit Analogy

“…Temperature dynamics of domestic refrigerators are modelled using a simplified circuit model in [39] to identify thermal parameters in order to later be used in intelligent control strategies for smart grid power control. Moreover, dynamic models of the domestic refrigerator using electric circuit analogy were investigated in [40], where there different models show their advantages and disadvantages of using to model refrigerators. The third order model having three capacitances describes mostly domestic refrigerators.…”

Modelling and Simulation of Residential Load Profiles as an Approach for Data-Driven Prediction

“…Moreover, temperature dynamics of domestic refrigerator are analysed in [28], they identify model thermal parameters in order to later be used in intelligent control strategies for smart grid power control. Dynamic models of domestic refrigerator using electric circuit analogy were investigated in [29], where investigated different models show their advantages and disadvantages using to model refrigerators. The third order model having three capacitances describes mostly domestic refrigerator.…”

Bottom-up modeling of domestic appliances with Markov chains and semi-Markov processes

“…Differential equations are a natural way to describe the dynamic characteristics of appliances. Three dynamic models with simple structures are investigated in [16] to describe the behavior of a refrigerator. Model parameter identification was based on real measurements.…”