Blar i USN Open Archive på forfatter "Gonzalez-Longatt, Francisco"
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Non-Synchronous Generation Impact on Frequency Response - A Case from Albania
Ago, Ersi; Chamorro, Harold; Alves, Erick Fernando; Gonzalez-Longatt, Francisco; Flores, Wilfredo C; Sood, Vijay K; Martinez, Wilmar (Chapter, 2020)Albanian electric power generation has been almost totally dependent on hydropower since its system inception. Within the past decade, although modest, there has been some share of power produced from Renewable Energy ... -
On the Optimization of Damping Enhancement in a Power System with a Hybrid HVDC Link
Chamorro, Harold; Torkzadeh, Roozbeh; Kotb, Omar; Rouzbehi, Kumars; Escaño, Juan Manuel; Gonzalez-Longatt, Francisco; Bellmunt, Oriol Gomis; Toma, Lucian; Sood, Vijay K (Chapter, 2019)Hybrid HVDC links incorporate both Line Commutated Converters (LCC) and Voltage Source Converters (VSC) systems, thereby gathering the benefits of both technologies. Supplementary Power Oscillation Damping (POD) controllers ... -
Optimal Frequency Support of Variable-Speed Hydropower Plants at Telemark and Vestfold, Norway: Future Scenarios of Nordic Power System
Acosta Montalvo, Martha Nohemi; Pettersen, Daniel; Gonzalez-Longatt, Francisco; Peredo Argos, Jaime; Andrade, Manuel A. (Peer reviewed; Journal article, 2020)The integration of renewable resources is quickly growing in the Nordic power system (NPS), and it has led to increasing challenges for the operation and control of the NPS. Nordic countries require that the first-generation ... -
Optimal Settings of Fast Active Power Controller: Nordic Case
Acosta Montalvo, Martha Nohemi; Gonzalez-Longatt, Francisco; Denysiuk, Serhii; Strelkova, Halyna (Chapter, 2020)The Nordic power system is continuously changing, and it has been experiencing a growing replacing of conventional power plants with renewable power plants, this together with other factors are causing reduction of the ... -
Optimal Tuning of Active Power Gradient Control for Frequency Support in Multi-Energy Systems
Perilla, Arcadio; Gusain, Digvijay; Rueda, Jose Luis; Palensky, Peter; A. M. M. van der Meijden, Mart; Gonzalez-Longatt, Francisco (Chapter, 2020)Coping with severe active power imbalances constitutes a challenging task in low inertia multi-energy systems. The phase out of the majority of conventional power plants with large size synchronous generators entails that ... -
Optimal UFLS Settings: An Assessment of Frequency System Response Indicators
Acosta Montalvo, Martha Nohemi; Adiyabazar, Choidorj; Gonzalez-Longatt, Francisco; Rueda Torres, Jose Luis; Palensky, Peter (Chapter, 2020)This paper 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 UFLS scheme ... -
Optimal under-frequency load shedding setting at Altai-Uliastai regional power system, Mongolia
Acosta Montalvo, Martha Nohemi; Adiyabazar, Choidorj; Gonzalez-Longatt, Francisco; Andrade, Manuel A.; Torres, José Rueda; Vazquez, Ernesto; Santos, Jesús Manuel Riquelme (Peer reviewed; Journal article, 2020)The Altai-Uliastai regional power system (AURPS) is a regional power system radially interconnected to the power system of Mongolia. The 110 kV interconnection is exceptionally long and susceptible to frequent trips because ... -
Parametric sensitivity analysis of rotor angle stability indicators
Shrestha, Ashish; Gonzalez-Longatt, Francisco (Journal article; Peer reviewed, 2021)With the increasing penetration rate of Power Electronic Converter (PEC) based technologies, the electrical power systems are facing the problem of transient stability since the PEC based technologies do not contribute to ... -
Parametric sensitivity analysis of rotor angle stability indicators: Simulation case
Shrestha, Ashish; Gonzalez-Longatt, Francisco (Journal article; Peer reviewed, 2021)Because power electronic converter (PEC) dominated power generators do not provide the rotational inertia and the proportion of synchronous generators is reducing, the modern electrical grids are confronting a challenge ... -
Power Converters Dominated Power Systems
Gonzalez-Longatt, Francisco; Acosta Montalvo, Martha Nohemi; Chamorro, H. R.; Rueda Torres, Jose Luis (Chapter, 2020)The transition to a low-carbon society is the driving force pushing the traditional power system to increase the volume of non-synchronous technologies which mainly use power electronic converters (PEC) as an interface to ... -
Reactive Power Control of Grid Interactive Battery Energy Storage System for WADC
Torkzadeh, Roozbeh; Chamorro, Harold; Rye, Rebecca; Eliassi, Mojtaba; Toma, Lucian; Gonzalez-Longatt, Francisco (Chapter, 2019)The integration of Grid Interactive Battery Energy Storage Systems (GI-BESSs) in energy services, such as peak shaving and load balancing, is a common practice in the modern-day electric power system. However, it is essential ... -
Robust PI controller design for frequency stabilisation in a hybrid microgrid system considering parameter uncertainties and communication time delay
Veronica, Arockya Jaya Samy Jeya; Kumar, Natarajan Senthil; Gonzalez-Longatt, Francisco (Peer reviewed; Journal article, 2019)One of the major issues in the operation of an islanded microgrid is the frequency deviations caused by the variation of power production coming from non-dispatchable renewable energy sources. Using an appropriate control ... -
Security Constrained Unit Commitment and Economic Dispatch by AC Sensitivity Factors
Tricarico, Gioacchino; Wagle, Raju; Azuara-Grande, Luis Santiago; Gonzalez-Longatt, Francisco; Dicorato, Maria; Forte, Giuseppe; Rueda, Jose Luis (Chapter, 2022)The dispatch schedule of the electrical power plant units is the result of the solution to the unit commitment optimisation problem, and it minimises the cost of production considering pre-defined technical limits. The ... -
Status of Micro/Mini-Grid Systems in a Himalayan Nation: A Comprehensive Review
Shrestha, Ashish; Rajbhandari, Yaju; Khadka, Nasib; Bista, Aayush; Marahatta, Anup; Dahal, Rojesh; Mallik, Jiwan Kumar; Thapa, Anup; Hayes, Barry P.; Korba, Petr; Gonzalez-Longatt, Francisco (Peer reviewed; Journal article, 2020)Nepal is a Himalayan country with its 83% of its geography being composed of hills and mountains. Around 22% of the Nepalese population is not receiving electricity through the national power utility and is forced to ... -
Testing All-in-one-protection for any power distribution application using real time simulation
Lodhi, Ammar (Master thesis, 2021)The work was done as part of Master thesis at the Department of Electrical Engineering at USN, Porsgrunn, Norway. -
Two-Level Optimisation and Control Strategy for Unbalanced Active Distribution Systems Management
Gonzalez-Longatt, Francisco; Alvarado-Barrios, Lazaro; Alvarez-Arrollo, Cesar; Escaño, Juan Manuel; Martinez-Ramos, Jose Luis (Peer reviewed; Journal article, 2020)This article proposes a new approach to the operation of unbalanced Active Distribution Systems (ADS) using an economic dispatch optimisation model for Active Distribution Systems Management (ADSM). The model proposes a ... -
Under-Frequency Load Shedding in Mongolia: Simulation Assessment Considering Inertia Scenarios
Adiyabazar, Choidorj; Acosta Montalvo, Martha Nohemi; Gonzalez-Longatt, Francisco; Rueda Torres, Jose Luis; Palensky, Peter (Peer reviewed; Journal article, 2020)Mongolia power system (MPS) is evolving quite fast, and the integration of renewable resources (mainly wind power and solar photovoltaic) reached 20% by 2019. The MPS is interconnected to Russia in order to cover local ... -
Zonal Day-Ahead Energy Market: A Modified Version of the IEEE 39-bus Test System
Tricarico, Gioacchino; Wagle, Raju; Dicorato, Maria; Forte, Giuseppe; Gonzalez-Longatt, Francisco; Rueda, José Luis (Chapter, 2022)The increasing penetration of renewable energy resources (RES) in transmission system operating conditions require a suitable test system and a dataset to cope with current issues. RES penetration remarkably affects day-ahead ...