Browsing by Autor "Juan Carlos Huaquisaca Paye"

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Experimental Validation and Parametrisation of a High Impedance Fault Model for Overhead Distribution Networks Vegetation Simulations: Insights From Medium Voltage Laboratory Tests on Tree Branches
(Institution of Engineering and Technology, 2025) Juan Carlos Huaquisaca Paye; João Paulo Abreu Vieira; André P. Leão; Jonathan Muñoz Tabora; Ghendy Cardoso
ABSTRACT The detection and localisation of high impedance faults (HIFs) in overhead distribution networks, particularly those caused by tree contact, remain challenging due to their low fault current magnitude, nonlinear behaviour, and high waveform variability. This study addresses these challenges by experimentally validating and parameterising a two‐variable‐resistor series model for HIFs. Controlled tests were conducted at the 13.8 kV Extra High Voltage Laboratory (LEAT) of the Federal University of Pará (UFPA), Brazil, using three tree types to collect waveform data. The faults were modelled in ATPDraw software and validated through waveform comparisons, achieving an R 2 coefficient above 0.89, demonstrating excellent agreement between simulated and measured signals. Additionally, comprehensive parameterised data tables detailing resistance variations over time and voltage are provided. These findings not only reduce the need for costly experimental setups in early‐stage studies but also provide a solid foundation for developing and testing advanced HIF detection and localisation algorithms, thus contributing to improved power distribution system reliability.
High Impedance Fault Models for Overhead Distribution Networks: A Review and Comparison with MV Lab Experiments
(Multidisciplinary Digital Publishing Institute, 2024) Juan Carlos Huaquisaca Paye; João Paulo Abreu Vieira; Jonathan Muñoz Tabora; André P. Leão; Murillo Augusto de Melo Cordeiro; Ghendy Cardoso; Adriano Peres de Morais; Patrick Escalante Farias
Detecting and locating high impedance faults (HIF) in overhead distribution networks (ODN) remains one of the biggest challenges for manufacturers and researchers due to the complexity of this phenomenon, where the electrical current magnitude is similar to that of the loads. To simulate HIF, the selection of the HIF model is important, because it has to correctly reproduce the characteristics of this phenomenon, so that it does not negatively influence the simulations results. Therefore, HIF models play a fundamental role in proposing solutions and validating the effectiveness of the proposed methods to detect and localize HIF in ODN. This paper presents a systematic review of HIF models. It is intended to facilitate the selection of the HIF model to be considered. The models are validated based on experimental data from medium voltage (MV) laboratories, specifically, recorded waveforms from two HIF tests conducted in an MV lab were analyzed and compared with three established HIF models. The efficacy of these models was assessed against MV lab test data to ensure a precise representation of both transient and steady-state conditions for fault conductance and current waveforms. The findings show that the two nonlinear resistor models better approximate the waveforms obtained in the experimental tests performed in this study.
Hosting Capacity: A Systematic Review from an Honduran Perspective
(2025) Asheyn Rivera Fajardo; Marlon Lainez Martinez; Jonathan Muñoz Tabora; Juan Carlos Huaquisaca Paye; Dennis A. Rivera
In recent years, renewable energy sources have experienced significant growth within power systems. However, their high penetration levels in localized areas can lead to operational challenges such as reverse power flows in distribution lines and voltage violations along distribution networks. As a result, assessing the hosting capacity of distribution systems has become essential to ensure the safe and effective integration of renewable energy. This study presents a bibliometric analysis, with a Honduran perspective, aimed at identifying and categorizing the optimization methods employed to evaluate hosting capacity in distribution networks. In addition, it explores the practical measures adopted to mitigate the consequences of unregulated photovoltaic integration, including advanced inverter functions such as volt-watt and volt-var control, as well as network solutions like on-load tap changers. By analyzing past research contributions and mitigation efforts, the study seeks to inform future strategies that foster the development of more efficient, resilient, and sustainable electrical systems capable of supporting high levels of distributed generation.