Experimental Validation of Simple Power Quality Indices for Frequency Content Assessment up to 150 kHz
Christian Betti, Roberto Tinarelli, Lorenzo Peretto, Alessandro Mingotti
TL;DR
This paper introduces new power quality indices to help identify electrical issues in modern power systems, validated across a wide frequency range.
Contribution
The paper proposes and validates new PQ indices that are flexible and effective for assessing power quality across diverse frequencies.
Findings
New PQ indices were validated on synthetic and real signals, showing effectiveness in identifying power quality issues.
The indices work well across a wide frequency range (50 Hz–150 kHz) and can be combined with existing metrics for better classification.
A case study demonstrated practical application and promising results in real-world power networks.
Abstract
The power system is evolving with the integration of new technologies, including electronic devices and renewable energy sources, which are increasingly used to support new applications, reduce dependence on fossil fuels, and drive system innovation. However, this shift brings a significant drawback: a reduction in power quality (PQ). The literature extensively discusses the impact of poor PQ on electrical assets and explores potential solutions to this new challenge. Building on this foundation, this paper introduces new PQ indices derived from existing metrics and validated on both synthetic and real signals to assess their effectiveness. The aim is to provide researchers and system operators with simple and efficient tools for the clear identification of PQ issues in monitored networks. These new indices are designed to be flexible and independent of acquisition conditions, making…
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Taxonomy
TopicsPower Quality and Harmonics · Advanced Electrical Measurement Techniques · Power System Optimization and Stability