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A high-performance voltage sag detection algorithm for a dynamic voltage restorer
Roldan Perez, Javier; García Cerrada, Aurelio; Ochoa Giménez, Miguel; Zamora Macho, Juan LuisDynamic Voltage Restorers (DVRs) are a costeffective solution to protect sensitive loads against voltage sags in medium- and high-power applications because the power required to compensate sags is only a fraction of the ... -
A steady-state harmonic controller for a series compensator with uncertain load dynamics
Roldan Perez, Javier; Zamora Macho, Juan Luis; Ochoa Giménez, Miguel; García Cerrada, Aurelio (2017-09-01)Series compensators can be used to solve a number of power quality issues in electrical distribution systems. These devices are connected in series between the point of common coupling and a load and they inject a series ... -
Active vibration cancelation for a cryo-cooler compressor in space applications [Details of the vibration-cancellation algorithm]
García Cerrada, Aurelio; Zamora Macho, Juan Luis -
Adaptive repetitive controller for a three-phase dynamic voltage restorer
Roldan Perez, Javier; García Cerrada, Aurelio; Zamora Macho, Juan Luis; Roncero Sánchez-Elipe, Pedro Luis; Acha, Enrique (IEEE (Torremolinos, España), 2011-05-11)Voltage sags and swells, voltage harmonics and voltage imbalances in power systems may affect sensitive loads causing production interruption or equipment damage. Now-adays series voltage compensation using power electronics ... -
Ajuste de reguladores de turbinas hidráulicas con técnicas de estimación de parámetros.
Rouco Rodríguez, Luis; Zamora Macho, Juan Luis; González, M. (Universidad Pública de Navarra (Pamplona, España), 2012-01-26)Este artículo detalla un método de ajuste de reguladores de turbinas hidráulicas basado en técnicas de estimación de parámetros. Este método consiste en determinar los parámetros del regulador que minimizan el error entre ... -
Análisis de incidencias en sistemas eléctricos de potencia aplicando técnicas de filtrado de señales y estimación de parámetros.
Zamora Macho, Juan Luis; Fernández Martínez, Cesáreo (Sin editorial (Madrid, España), 1999-09-22)No disponible Not available -
Aprendizaje de mecanismos en la Universidad: Máquinas antiguas en Realidad Aumentada - Cabria Romana
Sáenz Nuño, María Ana; Martín Carrasquilla, Olga; Salas Labayen, María Rosa; Montes Gan, María Victoria; Zamora Macho, Juan Luis; Pérez Mallada, Néstor; Arroyo Sanz, Rubén (2023-12-22)En la Universidad Pontificia Comillas se ha desarrollado un proyecto de innovación de prototipado y modelado en Realidad Aumentada de máquinas, para su uso en el grado de Educación primaria e infantil, con un enfoque ... -
Comprehensive control for unified power quality conditioners
Ochoa Giménez, Miguel; García Cerrada, Aurelio; Zamora Macho, Juan Luis (2017-07-01)This paper presents a comprehensive control strategy for unified power quality conditioners (UPQCs) to compensate for both voltage and current quality problems. The controllers for the series and shunt components of the ... -
Comprehensive design and analysis of a state-feedback controller for a dynamic voltage restorer
Roldan Perez, Javier; García Cerrada, Aurelio; Rodríguez Cabero, Alberto; Zamora Macho, Juan Luis (2018-08-01)Voltage sags result in unwanted operation stops and large economical losses in industrial applications. A dynamic voltage restorer (DVR) is a power-electronics-based device conceived to protect high-power installations ... -
Control de HVDC-VSC
García Cerrada, Aurelio; Roldan Perez, Javier; Zamora Macho, Juan Luis -
Delayed-signal-cancellation-based sag detector for a dynamic voltage restorer in distorted grids
Roldan Perez, Javier; García Cerrada, Aurelio; Ochoa Giménez, Miguel; Zamora Macho, Juan Luis (2019-10-01)Dynamic voltage restorers (DVRs) are a cost-effective solution to protect sensitive loads against voltage sags in medium- and high-power applications because the power required for the compensation is only a fraction of ... -
DFT-based controller for sag and harmonic mitigation with a series-connected compensator
Roldan Perez, Javier; Zamora Macho, Juan Luis; García Cerrada, Aurelio (European Association for the Development of Renewable Energies, Environment and Power Quality (EA4EP (Santiago de Compostela, España), 2012-03-28)Voltage-quality problems in power distribution networks include harmonics, voltage sags and swells and unbalances. These problems may seriously affect sensitive industrial loads causing production interruption or equipment ... -
Discrete repetitive controller with a non-integer number of samples per cycle
Roldan Perez, Javier; García Cerrada, Aurelio; Zamora Macho, Juan LuisRepetitive controllers are used to track periodic references or to reject periodic disturbances exactly. This letter presents a simple addition for a discrete repetitive controller to tackle applications in which the period ... -
Discrete repetitive controller with a non-integer number of samples per cycle and its application to an active power filter
Roldan Perez, Javier; García Cerrada, Aurelio; Zamora Macho, Juan LuisRepetitive controllers are used to track periodic references or to reject periodic disturbances, exactly. When implementing this type of controllers digitally, the sampling period has to be chosen so that there is an integer ... -
Discrete-time resonant controllers design for power conditioning applications
Roldan Perez, Javier; Rodríguez Cabero, Alberto; Ochoa Giménez, Miguel; García Cerrada, Aurelio; Zamora Macho, Juan Luis (2018-11-01)Power quality has become a key issue in modern electric power systems due to the increasing number of sensitive loads and disturbing sources. In this scenario, electronic power converters are commonly used to compensate ... -
Diseño de reguladores resonantes en tiempo discreto para un restaurador dinámico de tensión
Roldan Perez, Javier; Rodríguez Cabero, Alberto; Ochoa Giménez, Miguel; García Cerrada, Aurelio; Zamora Macho, Juan LuisLa calidad de la potencia se ha convertido en una temática muy relevante en los sistemas eléctricos de potencia debido al número creciente de cargas sensibles, así como de fuentes generadoras de armónicos. En este escenario, ... -
Diseño de reguladores resonantes en tiempo discreto para un restaurador dinámico de tensión
Roldan Perez, Javier; Rodríguez Cabero, Alberto; Ochoa Giménez, Miguel; García Cerrada, Aurelio; Zamora Macho, Juan Luis (Universitat Politècnica de Catalunya (Barcelona, España), 2018-07-04)La calidad de la potencia se ha convertido en una temática muy relevante en los sistemas eléctricos de potencia debido al número creciente de cargas sensibles, así como de fuentes generadoras de armónicos. En este escenario, ... -
Dynamic patterns and model order reduction in small-signal models of doubly fed induction generators for wind power applications
Rouco Rodríguez, Luis; Zamora Macho, Juan Luis (Sin editorial (Montréal, Canadá), 2006-06-18)This paper analyzes the dynamic response of wind power generators in case of voltage dips. When a fault occurs in the network, a voltage dip is applied to the wind power generator common coupling point. Wind power generators ... -
Efficient multiple-reference-frame controller for harmonic suppression in custom power devices
Ochoa Giménez, Miguel; Roldan Perez, Javier; García Cerrada, Aurelio; Zamora Macho, Juan Luis (2015-07-01)Tracking harmonic currents and voltages in electric power systems with custom power devices exceeds the capabilities of conventional Proportional%2BIntegral controllers and more sophisticated algorithms are required, ... -
Estimación de parámetros de sistemas de excitación para estudios de estabilidad
Zamora Macho, Juan Luis; Rouco Rodríguez, Luis; Zazo, Alfredo; Pagola y de las Heras, Francisco Luis; Criado Calero, Raimundo; Gutiérrez, M.; Soto, J.; Suárez, R. (Universitat Politécnica de Catalunya (Barcelona, España), 1993-07-01)No disponible Not available