ENSURING RELIABLE REFRIGERATION THROUGH POWER QUALITY MONITORING. A CASE STUDY
DOI:
https://doi.org/10.59277/RRST-EE.2026.3.22Keywords:
Power quality monitoring, Industrial freezing facility, Power quality indicators, Power flow analysisAbstract
This paper presents a comprehensive assessment of power quality in an industrial refrigeration and freezing facility based on a continuous monitoring campaign, analyzing voltage, current, harmonic distortion, voltage unbalance, flicker severity, power flow characteristics, and load behavior in order to evaluate the influence of electrical supply conditions on the operational reliability, energy performance, and stability of refrigeration equipment under real operating conditions. The results demonstrate that all monitored power quality indicators remained within the limits prescribed by applicable standards, confirming the suitability of continuous power quality monitoring as an effective tool for ensuring reliable and uninterrupted operation of industrial refrigeration systems.
References
(1) M. Eremia (Ed.), Electric Power Systems. Electric Networks, AGIR Publishing House (in Romanian), Technical Publishing House, Bucharest, (2002).
(2) A. Hermina et al., Power Quality. Contributions. Results, Perspectives (in Romanian), AGIR Publishing House, Bucharest, (2013).
(3) ***Voltage characteristics of electricity supplied to public distribution systems, EN 50160:2023, (2023).
(4) C. Săvescu, A. M. Morega, M. Roman, C. Nechifor, “Experimentally validated studies of thermoelectric generators installed on a compressor test bench”, Rev. Roum. Sci. Techn. – Électrotechn. Et Énerg., 70, 2, pp. 193–198 (2025).
(5) Y. Djeghader, C. Bousnoubra, S. Allele, “Mitigation of power quality problems in steel plants using static synchronous compensator”, Rev. Roum. Sci. Techn. – Électrotechn. Et Énerg., 69, 3, pp. 293–297 (2024).
(6) V. Ștefănescu, F. I. Hathazi, G. Raţă, C. Ungureanu, “Technical losses caused by poor power quality in electrical networks with nonlinear consumers”, Rev. Roum. Sci. Techn. – Électrotechn. Et Énerg., 70, 3, pp. 337–342 (2025).
(7) L. C. Lipan, S. Dimitriu, “The cooling process modeling of a bar with variable properties in relation to temperature”, University Politehnica of Bucharest Scientific Bulletin Series C – Electrical Engineering and Computer Science, 81, 1, pp. 261–270 (2019).
(8) R. Elumalai, R. Varadhan, “Power quality evolution for wind energy conversion systems using embedded Z–source inverter and permanent magnet synchronous generator”, Rev. Roum. Sci. Techn. – Électrotechn. Et Énerg., 70, 4, pp. 459–464 (2025).
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