Controller design for high-energy-efficient performance of a household refrigerator using inverter technology

Published in: Engineering, Integration, and Alliances for a Sustainable Development. Hemispheric Cooperation for Competitiveness and Prosperity on a Knowledge-Based Economy: Proceedings of the 18th LACCEI International Multi-Conference for Engineering, Education and Technology
Date of Conference: July 27-31, 2020
Location of Conference: Virtual
Authors: Freddy Hermosa (Escuela Politécnica Nacional, EC)
Cristian Tasiguano (Instituto Superior Tecnológico Rumiñahui, EC)
Marcelo Pozo (Escuela Politécnica Nacional, EC)
Eliana Acurio (Escuela Politécnica Nacional, EC)
Full Paper: #51

Abstract:

This work presents the control design of a domestic refrigeration system by using a variable speed compressor(inverter technology) with the main purpose of reducing energy consumption and complying with Ecuadorian standards for this type of household appliances. A study on refrigeration systems is carried out, its operating principles are discussed and a comparison between conventional systems and the variable speed technology is performed. Additionally, an analysis of the refrigeration control is included and the variable speed controller is implemented in a prototype card, which was installed in a domestic R12 refrigerator. The system exhibits a reduction of 27% in the consumption test regulated by the RTE INEN 035 and the NTE-INEN 2 206 norms, which demonstrates its high energy efficient performance.