Browsing by Author "0000-0003-2177-2029"
Now showing items 1-20 of 103
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A centralized UFLS scheme using decision trees for small isolated power systems
López Larrosa, David; Sigrist, Lukas (2017-10-01)This paper presents a centralized underfrequency load-shedding (UFLS) scheme using a decision tree to decide whether and how much load needs to be shed. UFLS schemes play an important role in protecting the integrity of ... -
A communication-free reactive-power control strategy in VSC-HVDC multi-terminal systems to improve transient stability
Renedo Anglada, Javier; Rouco Rodríguez, Luis; García Cerrada, Aurelio; Sigrist, Lukas (2019-09-01)This paper proposes a new reactive-power control strategy for High Voltage Direct Current multi-terminal systems with Voltage Source Converter stations (VSC-HVDC) to improve transient stability in electric power transmission ... -
A fundamental study on the impact of HVDC lines on transient stability of power systems
Sigrist, Lukas; Echavarren Cerezo, Francisco; Rouco Rodríguez, Luis; Panciatici, Patrick (Eindhoven University of Technology (Eindhoven, España), 29/06/2015)An increasing number of HVDC lines are currently deployed all around the world. HVDC links are either based on line-commutated converters (LCC) or on voltage-source converters (VSC) technologies. This paper presents a ... -
A method for the design of UFLS schemes of small isolated power systems
Sigrist, Lukas; Egido Cortés, Ignacio; Rouco Rodríguez, Luis (2012-05-01)This paper presents a systematic method for the design of robust and efficient underfrequency load-shedding (UFLS) schemes. UFLS schemes play an important role in protecting the system integrity. The systematic method ... -
A review of the state of the art of UFLS schemes for isolated power systems
Sigrist, Lukas; Rouco Rodríguez, Luis; Echavarren Cerezo, Francisco (2018-07-01)This paper presents a review of the state of the art of UFLS schemes for isolated power systems. Isolated power systems are especially sensitive to power imbalances and underfrequency load-shedding (UFLS) schemes are crucial ... -
A simplified approach to detect undervoltage tripping of wind generators
Sigrist, Lukas; Rouco Rodríguez, Luis (Eindhoven University of Technology (Eindhoven, España), 29/06/2015)This paper proposes a simplified but fast approach based on a Norton equivalent of wind generators to detect undervoltage tripping of wind generators. This approach is successfully applied to a real wind farm. Today, most ... -
A tool for optimal operation and design of batteries and its applications to self-consumption
Fernández de Bobadilla, Jose María; Lobato Miguélez, Enrique; Sigrist, Lukas; González García, AlezeiaThis paper presents a tool for optimal operation and design of batteries and its applications to self-consumption. The recent improvements in capabilities and costs of battery storage technologies might enable new business ... -
A UFLS scheme for small isolated power systems using rate-of-change of frequency
Sigrist, Lukas (2015-07-01)This letter presents a centralized underfrequency load-shedding (UFLS) scheme using the initial rate-of-change of frequency (ROCOF) to decide whether and how much load needs to be shed. The applicability of the centralized ... -
Accionamientos Eléctricos
Domingo Gil, Carlos; Fernández Bernal, Fidel; Herrero Fuerte, Javier; Sigrist, Lukas (04/09/2020) -
Accionamientos Eléctricos
Domingo Gil, Carlos; Fernández Bernal, Fidel; Herrero Fuerte, Javier; Sigrist, Lukas (05/05/2020) -
Accionamientos Eléctricos
Carlos; Fidel; Luis; Lukas (21/09/2018) -
Accionamientos Eléctricos
Díez Maroto, Luis; Domingo Gil, Carlos; Fernández Bernal, Fidel; Herrero Fuerte, Javier; Sigrist, Lukas (11/01/2022) -
Accionamientos Eléctricos
Díez Maroto, Luis; Domingo Gil, Carlos; Fernández Bernal, Fidel; Herrero Fuerte, Javier; Sigrist, Lukas (01/09/2022) -
Accionamientos Eléctricos
Domingo Gil, Carlos; Fernández Bernal, Fidel; Herrero Fuerte, Javier; Sigrist, Lukas (01/09/2023) -
Accionamientos Eléctricos
Carrillo Arnaldos, Mónica; Domingo Gil, Carlos; Fernández Bernal, Fidel; Sigrist, Lukas (06/09/2024) -
An induction motor model for system frequency response models
Sigrist, Lukas; Rouco Rodríguez, Luis (2017-11-01)This paper presents a simple induction motor (IM) model for system frequency response (SFR) simulations. SFR simulations are widely used to analyze frequency stability of small isolated power systems. Isolated power systems ... -
An ultra-capacitor for frequency stability enhancement in small-isolated power systems: models, simulation and field tests
Egido Cortés, Ignacio; Sigrist, Lukas; Lobato Miguélez, Enrique; Rouco Rodríguez, Luis; Barrado Sánchez, Alberto Carlos (2015-01-01)The most relevant issue in operation of isolated power systems is frequency stability. Frequency stability is concerned with the ability of generators to supply the loads at an acceptable frequency after a disturbance. ... -
Barriers regarding scalability and replicability of smart grid projects
May, Kristof; Vingerhoets, Pieter; Sigrist, Lukas (Instituto Superior de Engenharia de Lisboa (Lisboa, Portugal), 20/05/2015)This paper assesses the scalability and replicability of smart grid projects, by means of the identification of limitations and barriers faced by these projects. Factors have been identified that impact a project s scalability ... -
Battery energy storage integration in wind farms: Economic viability in the Spanish market
Lobato Miguélez, Enrique; Sigrist, Lukas; Ortega Manjavacas, Álvaro; González García, Alezeia; Fernández Roldán, José M. (2022-12-01)Este trabajo propone una herramienta de evaluación económica que determina la viabilidad de una batería de energía sistema de almacenamiento (BESS) integrado dentro de plantas de energía renovable para diferentes aplicaciones ... -
Battery energy storage integration in wind farms: economic viability in the Spanish market
Lobato Miguélez, Enrique; Sigrist, Lukas; Ortega Manjavacas, Álvaro; González García, Alezeia; Fernández de Bobadilla, Jose María (2022-12-01)This paper proposes an economic assessment tool that determines the viability of a battery energy storage system (BESS) integrated within renewable power plants for different market applications such as day-ahead price ...