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Data-driven consumer-phase identification in low-voltage distribution networks considering prosumers

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Abstract

Knowing the correct phase connectivity information plays a significant role in maintaining high-quality power and reliable electricity supply to end-consumers. However, managing the consumer-phase connectivity of a low-voltage distribution network is often costly, prone to human errors, and time-intensive, as it involves either installing expensive high-precision devices or employing field-based methods. Besides, the ever-increasing electricity demand and the proliferation of behind-the-meter resources have also increased the complexity of leveraging the phase connectivity problem. To overcome the above challenges, this paper develops a data-driven model to identify the phase connectivity of end-consumers using advanced metering infrastructure voltage and current measurements. Initially, a preprocessing method that employs linear interpolation and singular value decomposition is adopted to improve the quality of the smart meter data. Then, using Kirchoff’s current law and correlation analysis, a discrete convolution optimization model is built to uniquely identify the phase to which each end-consumer is connected. The data sets utilized are obtained by performing power flow simulations on a modified IEEE-906 test system using OpenDSS software. The robustness of the model is tested against data set size, missing smart meter data, measurement errors, and the influence of prosumers. The results show that the method proposed correctly identifies the phase connections of end-consumers with an accuracy of about 98%.

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Acknowledgements

This work was supported by Egypt-Japan University of Science and Technology and Japan International Cooperation Agency (JICA) under TICAD7 contract.

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Correspondence to Geofrey Mugerwa.

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Competing Interests The authors declare that they have no competing interests.

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Mugerwa, G., Megahed, T.F., Elsabrouty, M. et al. Data-driven consumer-phase identification in low-voltage distribution networks considering prosumers. Front. Energy (2024). https://doi.org/10.1007/s11708-024-0946-4

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