Testing Rogowski Coils with Merging Units for Smart Grids
Author:
Daboul Mayada1, Orságová Jaroslava1, Jurák Viktor1, Vrtal Matěj1ORCID
Affiliation:
1. Department of Electrical Power Engineering, Faculty of Electrical Engineering and Communication, Brno University of Technology, CZ-61600 Brno, Czech Republic
Abstract
As smart grids incorporate renewable energy sources and advanced power electronics, ensuring accurate measurement systems becomes paramount due to the increased complexity and potential sources of disturbances. This article focuses on the laboratory calibration of Rogowski coils (RCs) and merging units (MUs), which are fundamental for measuring, controlling, and monitoring digital power systems. A comprehensive digital calibration system is introduced, utilizing precise, commercially available components such as a fluxgate current transducer and a National Instrument. The system assesses magnitude and phase displacement errors under various operating conditions, including abnormal scenarios. Additionally, the impact of uncertainty sources on the measurement chain analysis is discussed, with test results conforming to established standards. This research contributes to enhancing the accuracy and reliability of measurement systems in the context of evolving smart grids.
Funder
Centre for Research and Utilization of Renewable Energy Ministry of Education, Youth, and Sports of the Czech Republic under the BUT specific research program
Subject
Energy (miscellaneous),Energy Engineering and Power Technology,Renewable Energy, Sustainability and the Environment,Electrical and Electronic Engineering,Control and Optimization,Engineering (miscellaneous),Building and Construction
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