Blar i USN Open Archive på forfatter "Gonzalez-Longatt, Francisco"
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Assessment of Under-Frequency Load Shedding in Mongolia Considering Inertia Scenarios
Adiyabazar, Choidorj; Acosta Montalvo, Martha Nohemi; Gonzalez-Longatt, Francisco; Rueda Torres, Jose Luis; Palensky, Peter (Chapter, 2020)The Mongolian power system (MPS) has been changing in recent years mainly by the integration of wind power and solar photovoltaic sources which until 2019 has been reached a 20% of the total generation sources. The ... -
A Bayesian Model to Forecast the Time Series Kinetic Energy Data for a Power System
Shrestha, Ashish; Ghimire, Bishal; Gonzalez-Longatt, Francisco (Journal article; Peer reviewed, 2021)With the massive penetration of electronic power converter (EPC)-based technologies, numerous issues are being noticed in the modern power system that may directly affect system dynamics and operational security. The ... -
Challenges in the penetration of electric vehicles in developing countries with a focus on Nepal
Mali, Bijen; Shrestha, Ashish; Chapagain, Anish; Bishwokarma, Rajiv; Kumar, Pritam; Gonzalez-Longatt, Francisco (Peer reviewed; Journal article, 2021)With growing concerns of climate change and unreliable fuel market, the world is moving towards an electric-based transportation system, one that entails a country to overhaul major infrastructures, establish high monetary ... -
Co-simulation-based optimal reactive power control in smart distribution network
Wagle, Raju; Pham, Le Nam Hai; Tricarico, Gioacchino; Sharma, Pawan; Rueda, Jose Luis; Gonzalez-Longatt, Francisco (Peer reviewed; Journal article, 2023)The increasing integration of distributed energy resources such as photovoltaic (PV) systems into distribution networks introduces intermittent and variable power, leading to high voltage fluctuations. High PV integration ... -
Data-Driven Trajectory Prediction of Grid Power Frequency Based on Neural Models
Chamorro, Harold R.; Orjuela-Cañón, Alvaro D.; Ganger, David; Mattias, Persson; Gonzalez-Longatt, Francisco; Alvarado-Barrios, Lazaro; Sood, Vijay K.; Martinez, Wilmar (Peer reviewed; Journal article, 2021)Frequency in power systems is a real-time information that shows the balance between generation and demand. Good system frequency observation is vital for system security and protection. This paper analyses the system ... -
Day-ahead energy-mix proportion for the secure operation of renewable energy-dominated power system
Shrestha, Ashish; Rajbhandari, Yaju; Gonzalez-Longatt, Francisco (Peer reviewed; Journal article, 2024)Advancements in various scientific fields have encouraged the development of novel tools, techniques, components, methodologies, and innovations aimed at addressing the challenges encountered in modern power systems dominated ... -
Descriptive Statistical Analysis of Frequency control-related variables of Nordic Power System
Acosta Montalvo, Martha Nohemi; Andrade, Manuel A.; Vazquez, Ernesto; Sanchez, Francisco; Gonzalez-Longatt, Francisco; Rueda Torres, Jose Luis (Peer reviewed; Journal article, 2020)This paper presents a descriptive statistical analysis (DSA) of time-series of electro-mechanical quantities related to the frequency control (e.g. kinetic energy (KE), electrical frequency and power demand) of the Nordic ... -
Enhanced demand side management for solar-based isolated microgrid system: Load prioritisation and energy optimisation
Rajbhandari, Yaju; Marahatta, Anup; Shrestha, Ashish; Gachhadar, Anand; Thapa, Anup; Gonzalez-Longatt, Francisco; Korba, Petr (Peer reviewed; Journal article, 2023)A novel control mechanism is presented for rural microgrids, standing out in the current literature with its advanced approach to load prioritisation and energy allocation. The system's main goal is to maximise energy ... -
Evaluation of a LoRa Mesh Network for Smart Metering in Rural Locations
Marahatta, Anup; Rajbhandari, Yaju; Shrestha, Ashish; Singh, Ajay; Thapa, Anup; Gonzalez-Longatt, Francisco; Korba, Petr; Shin, Seokjoo (Peer reviewed; Journal article, 2021)Accompanying the advancement on the Internet of Things (IoT), the concept of remote monitoring and control using IoT devices is becoming popular. Digital smart meters hold many advantages over traditional analog meters, ... -
FAPI Controller for Frequency Support in Low-Inertia Power Systems
Rakhshani, Elyas; Perilla, Arcadio; Rueda Torres, Jose Luis; Gonzalez-Longatt, Francisco; Batista Soeiro, Thiago; van der Meijden, Mart A. M. M. (Journal article, 2020)This paper presents different forms of Fast Active Power Injection (FAPI) control schemes for the analysis and development of different mitigation measures to address the frequency stability problem due to the growth of ... -
Fast Active Power-Frequency Support Methods by Large Scale Electrolyzers for Multi-Energy Systems
Veerakumar, Nidarshan; Ahmad, Zameer; Adabi, M. Ebrahim; Rueda, Jose Luis; A. M. M. van der Meijden, Mart; Palensky, Peter; Gonzalez-Longatt, Francisco (Chapter, 2020)This paper presents a comparative assessment of fast active power regulation (FAPR) control strategies implemented on megawatt-scale controllable electrolysers, with the goal of achieving enhanced frequency support during ... -
Fault Location in a VSC-HVDC Link Using Neural Networks
Páramo Balsa, Paula; Roldán Fernández, Juan Manuel; Gonzalez-Longatt, Francisco; Burgos Payán, Manuel; Riquelme Santos, Jesús (Journal article, 2020)High-voltage direct current (HVDC) using voltage source converter (VSC) in transmission systems applications are currently a competitive alternative to the traditional AC transmission systems, especially for offshore wind ... -
Framework for Real-Time Simulation of Hardware in the Loop Applied to Primary Frequency Control
Barrios-Gomez, J.A.; Sanchez, Francisco; Gianfranco, Claudio; Gonzalez-Longatt, Francisco; Acosta Montalvo, Martha Nohemi; Denysiuk, Serhii; Strelkova, Halyna (Chapter, 2020)This research paper proposes a framework to perform (hardware in the loop) HIL simulation in real-time (RT), the framework includes steps for the formulation of the Target RT Computer and Open Source System, which are ... -
Frequency stability issues and research opportunities in converter dominated power system
Shrestha, Ashish; Gonzalez-Longatt, Francisco (Journal article; Peer reviewed, 2021)Stable power supply has become a crucial thing in the current era of technology and automation. Although the power system has multiple stability issues and causes, frequency fluctuation plays a vital role in normal operation, ... -
Frequency Support of Fast-Multi-Energy Storage Systems in Low Rotational Inertia Scenarios
Ersdal, Anne Mai; Acosta Montalvo, Martha Nohemi; Gonzalez-Longatt, Francisco; Rueda Torres, Jose Luis; Palensky, Peter (Chapter, 2020)Modern power systems are increasing the connection of power electronic converters (PECs), and new inertia-less technologies displace the synchronous generation units. Therefore, the total rotational system inertia is ... -
Improvement of the Frequency Response Indicators by Optimal UFLS Scheme Settings
Acosta Montalvo, Martha Nohemi; Andrade, Manuel A.; Vazquez, Ernesto; Adiyabazar, Choidorj; Gonzalez-Longatt, Francisco; Torres, Jose Luis Rueda; Palensky, Peter (Peer reviewed; Journal article, 2020)This research investigates the positive changes in the system frequency response indicators caused by the implementation of a set of optimal settings of an under-frequency load shedding (UFLS) scheme. The optimal under-frequency ... -
Innovative primary frequency control in low‐inertia power systems based on wide‐area RoCoF sharing
Chamorro, Harold R.; Segundo Sevilla, Felix Rafael; Gonzalez-Longatt, Francisco; Rouzbehi, Kumars; Chavez, Hector; Sood, Vijay K. (Journal article, 2020)Future plans for integration of large non-synchronous generation and the expansion of the power system in the Nordic countries are a concern to transmission system operators due to the common interconnections and electricity ... -
Interleaved high gain DC-DC converter for integrating solar PV source to DC bus
Sri Revathi, B; Mahalingam, Prabhakar; Gonzalez-Longatt, Francisco (Peer reviewed; Journal article, 2019)In this paper, a novel non-isolated DC-DC converter topology is proposed for solar photovoltaic (PV) application. The proposed converter is constructed from an interleaved boost converter (IBC) to reduce the input current ... -
Load prioritization technique to guarantee the continuous electric supply for essential loads in rural microgrids
Rajbhandari, Yaju; Marahatta, Anup; Shrestha, Ashish; Gachhadar, Anand; Thapa, Anup; Gonzalez-Longatt, Francisco; Guerrero, Josep M.; Korba, Petr (Peer reviewed; Journal article, 2021)Microgrid (MG) is one of the practical and best concepts to provide energy access to rural communities, where electric grid extension is not techno-economically feasible. Since the trend of load consumption is not uniform ... -
Multi-Core Platform of Admittance Matrix Formation of Power Systems: Computational Time Assessment
Gonzalez-Longatt, Francisco; Montalvo, Martha Nohemi; Andrade, Manuel A.; Vazquez, Ernesto; Chamorro, Harold R.; Sood, Vijay K. (Chapter, 2020)This paper presents a comparison of computational time required to build the admittance matrix of five test systems (ranging from 200 to 70,000 nodes) considering two formation approaches: element-by-element and matrix ...