Proposal of Novel Single-Phase Power Quality Indicators considering subsynchronous frequency perturbations in Voltage and Current under non-sinusoidal conditions J. El Mariachet, J. Matas, H. Martin, G. Tinoco, S. Abdalinejad 2019/07/15

Abstract

This work pretends to reconsider power quality (PQ), in AC single-phase low voltage systems, considering perturbation sources with frequency components below the fundamental frequency in voltage and current signals. These perturbations induced by sources like Geomagnetic Induced Currents (GMC), Arc Furnaces, switching VSC, etc. [1]-[2],[30]-[32], can occur in a frequency range comprised between DC and the fundamental frequency of the system. Standard PQ indexes do not characterize properly these subsynchronous frequency perturbations (SFFP), [2]-[3] and this work pretends to analyze the spectra from 0 to 50Hz for voltage and current, proposing new formulation for some PQ as a function of SSFP, with the intention of explaining the observed degradation of the power quality in single-phase low voltage electric systems.

Authors and affiliations

1J. El Mariachet, 1J. Matas, 1H. Martin, 2G. Tinoco, 1S. Abdalinejad
1. Department of Electrical Engineering, Universidad Politécnica de Cataluña (UPC), Barcelona, Spain.
2. Department of Electrical Engineering, Universidad Michoacana. de San Nicolás de Hidalgo, Morelia, Mexico.

Key words

References

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