Power Quality Measurement Results for a Configurable Urban Low-Voltage DC Microgrid

Helko E. van den Brom (), Ronald van Leeuwen, Gerasimos Maroulis, Samad Shah and Laurens Mackay
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Helko E. van den Brom: VSL National Metrology Institute, 2629 JA Delft, The Netherlands
Ronald van Leeuwen: VSL National Metrology Institute, 2629 JA Delft, The Netherlands
Gerasimos Maroulis: DC Opportunities R&D, 2629 JD Delft, The Netherlands
Samad Shah: DC Opportunities R&D, 2629 JD Delft, The Netherlands
Laurens Mackay: DC Opportunities R&D, 2629 JD Delft, The Netherlands

Energies, 2023, vol. 16, issue 12, 1-18

Abstract: The growing use of renewable energy sources and sustainable technologies has increased the attractiveness of low-voltage DC distribution grids. Despite initial research and standardization work, the definition of power quality (PQ) issues and their related compatibility levels in DC grids and the related measurement techniques remain in their infancy. The lack of available measurement results obtained in real-world situations is a major shortcoming. In this paper, the results of a measurement campaign obtained in a configurable bipolar 350 V/700 V DC microgrid in an urban environment are presented. Voltage and current signals were registered continuously at different positions in the microgrid with a sampling rate of 500 kSa/s while changing the configuration of the microgrid; the resulting data were analyzed afterwards, with a focus on DC voltage and current variation, ripple, and spectral analysis. The measurements were taken with custom-designed metrology-sound measurement equipment. The measurement results provide input to the development of DC PQ analysis tools and the standardization of DC PQ measurement methods. Furthermore, the experience obtained will be beneficial for utility companies and regulatory authorities for reliable planning-level and compatibility-level surveys.

Keywords: DC power distribution; Fourier analysis; low-voltage DC grid; measurement; DC microgrid; power quality; ripple; standardization (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2023
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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