14 research outputs found
Acoustic Noise-Based Detection of Ferroresonance Events in Isolated Neutral Power Systems with Inductive Voltage Transformers
Power-quality events and operation transients in power systems (PS) with isolated neutral
can saturate inductive voltage transformers (IVT), which, when interacting with the overhead and
underground cable capacitances, can cause ferroresonance events in the local PS. This abnormal
operating mode can partially or totally damage the transformers and switchgears within the affected
PS. Distribution system operators (DSO) can minimize these effects by detecting ferroresonance events
accurately and fast enough and changing the mode of operation accordingly. Direct detection methods,
i.e., based on voltage measurements, are reliable, but the massive deployment of this solution is
relatively expensive; i.e., power quality analyzers cost thousands of USD. Alternatively, indirect
detection methods are also available, e.g., IVT vibration measurements with accelerometers costing
hundreds of USD, but their reliability depends on the installation method used. This manuscript
proposes using the acoustic noise caused by magnetostriction forces within the IVT core during
ferroresonance events to detect their occurrence. Compared to other indirect methods, electret
condenser microphones with preamplifying stage cost less than USD 10 and are less sensitive to
the installation procedure. The proposed method is validated experimentally, and its performance
compared to IVT vibration measurements one by using the same detection methodology.This work was partially financed by the EU Regional Development Fund (FEDER) and the Spanish Government under RETOS-COLABORACION RTC-2017-6782-3, the Spanish Ministry of Science and Innovation under project PID2021-128941OB-I00, and by the European Union’s Horizon 2020 research and innovation program under grant agreement No. 864579 (FLEXIGRID)
Acoustic noise-based detection of ferroresonance events in isolated neutral power systems with inductive voltage transformers
Power-quality events and operation transients in power systems (PS) with isolated neutral can saturate inductive voltage transformers (IVT), which, when interacting with the overhead and underground cable capacitances, can cause ferroresonance events in the local PS. This abnormal operating mode can partially or totally damage the transformers and switchgears within the affected PS. Distribution system operators (DSO) can minimize these effects by detecting ferroresonance events accurately and fast enough and changing the mode of operation accordingly. Direct detection methods, i.e., based on voltage measurements, are reliable, but the massive deployment of this solution is relatively expensive; i.e., power quality analyzers cost thousands of USD. Alternatively, indirect detection methods are also available, e.g., IVT vibration measurements with accelerometers costing hundreds of USD, but their reliability depends on the installation method used. This manuscript proposes using the acoustic noise caused by magnetostriction forces within the IVT core during ferroresonance events to detect their occurrence. Compared to other indirect methods, electret condenser microphones with preamplifying stage cost less than USD 10 and are less sensitive to the installation procedure. The proposed method is validated experimentally, and its performance compared to IVT vibration measurements one by using the same detection methodology.This work was partially financed by the EU Regional Development Fund (FEDER) and the Spanish Government under RETOS-COLABORACION RTC-2017-6782-3, the Spanish Ministry of Science and Innovation under project PID2021-128941OB-I00, and by the European Union’s Horizon 2020 research and innovation program under grant agreement No. 864579 (FLEXIGRID)
Metodología y sistema para la detección de la ferroresonancia en transformadores mediante el análisis de su ruido y/o vibraciones
Método de detección prematura de la ferroresonancia en transformadores de la red eléctrica mediante el análisis de señales producidas por la magnetoestricción procedentes de dichos transformadores, tal que el método está configurado para evitar daños futuros en los transformadores y en otros elementos de la línea consecuencia de la sobrecorriente generada, y comprende las etapas de: instalar una sensórica adecuada para la medición de las señales; realizar ensayos previos de calibración de los sensores; obtener los valores patrón de las señales; comenzar una campaña de medidas en tiempo real hasta la obtención del valor eficaz (RMS) en tiempo real; comparar los valores eficaces (RMS) obtenidos en tiempo real con los valores patrón de los diferentes eventos. Sistema para la detección prematura de la ferroresonancia en un transformador de la red eléctrica mediante la medición de señales producidas por la magnetoestricción procedentes de dicho transformador, que comprende: un transformador, sensórica para la medición de las señales producidas por la magnetoestricción procedentes del transformador y un sistema de adquisición de datos conectado a la sensórica.Solicitud: 201600864 (10.10.2016)Nº Pub. de Solicitud: ES2617105A1 (15.06.2017)Nº de Patente: ES2617105B2 (13.12.2017
Sistema electrónico y método para la mitigación de ferroresonancias en transformadores de tensión
Sistema configurado para la mitigación de ferroresonancias en transformadores de tensión, conectado al triángulo abierto de protección formado por los devanados de protección del conjunto de transformadores de tensión conectados a una red eléctrica de potencia, que comprende: a) un bloque de decisión, y b) un bloque emulador de resistencia, que comprende a su vez un convertidor de potencia y un procesador del valor de la tensión de entrada. Método para la mitigación de ferroresonancias en transformadores de tensión.Solicitud: 201800244 (25.10.2018)Nº Pub. de Solicitud: ES2756923 (27.04.2020)Nº de Patente: ES2756923B2 (16.02.2021)Corrección: ES2756923B8 (09.04.2021
Colombian consensus recommendations for diagnosis, management and treatment of the infection by SARS-COV-2/ COVID-19 in health care facilities - Recommendations from expert´s group based and informed on evidence
La Asociación Colombiana de Infectología (ACIN) y el Instituto de Evaluación de Nuevas Tecnologías de la Salud (IETS) conformó un grupo de trabajo para desarrollar
recomendaciones informadas y basadas en evidencia, por consenso de expertos para la atención, diagnóstico y manejo de casos de Covid 19. Estas guías son
dirigidas al personal de salud y buscar dar recomendaciones en los ámbitos de la atención en salud de los casos de Covid-19, en el contexto nacional de Colombia
Industrial symbiosis network modeling and simulation analogous to a supply chain
Máster en Investigación en Ingeniería Industria
Acceleration Atlas of the Human Body in Running and Stair Climbing Movements
Ingeniería industria
Mutations in the mitochondrial complex I assembly factor NDUFAF6 cause isolated bilateral striatal necrosis and progressive dystonia in childhood
Libro de Proyectos Finales 2021 primer semestre
PregradoIngeniero CivilIngeniero de SistemasIngeniero ElectricistaIngeniero ElectrónicoIngeniero IndustrialIngeniero Mecánic