http://sedici.unlp.edu.ar:80/handle/10915/36068 Tue, 10 Nov 2026 09:40:49 GMT 2026-11-10T09:40:49Z http://sedici.unlp.edu.ar:80/handle/10915/36244 Objeto de conferencia Power and Energy Society General Meeting (San Diego, Estados Unidos, 2012) Two oscillatory episodes took place in the Argentinean power system at 22:20 and 22:50, June 7th, 2008. The first one started when a 40 MVAr capacitors bank was disconnected and the second one started when a 500 kV line was disconnected. Both oscillatory episodes produced great variation of active and reactive power in several 330 kV and 500 kV power system nodes. At first sight, these oscillations seemed inter-area electromechanical oscillations, but carried out studies suggest that this oscillatory behavior could be a consequence of interaction between Reactive Power Control of generators and the ac-dc Converter Control of high power loads. Sun, 01 Jan 2012 00:00:00 GMT http://sedici.unlp.edu.ar:80/handle/10915/36244 2012-01-01T00:00:00Z Two oscillatory episodes took place in the Argentinean power system at 22:20 and 22:50, June 7th, 2008. The first one started when a 40 MVAr capacitors bank was disconnected and the second one started when a 500 kV line was disconnected. Both oscillatory episodes produced great variation of active and reactive power in several 330 kV and 500 kV power system nodes. At first sight, these oscillations seemed inter-area electromechanical oscillations, but carried out studies suggest that this oscillatory behavior could be a consequence of interaction between Reactive Power Control of generators and the ac-dc Converter Control of high power loads. http://sedici.unlp.edu.ar:80/handle/10915/36243 Objeto de conferencia VI IEEE/PES Transmission and Distribution: Latin America Conference and Exposition (T&D-LA) (Montevideo, Uruguay, 2012) In this paper the implementation of passive loops as a tool for magnetic field mitigation is studied. A theoretical introduction that describes the problem mathematically and physically is presented. Using this formulation a tool to estimate the magnitude and phase of current induced in passive loops is developed and the values obtained are compared with measurements to validate the model. Finally, calculations and measurements are performed for magnetic field with and without the implementation of loops on scale models. The analysis considers different sections of conductors used in loops, and different sizes and shapes. Sun, 01 Jan 2012 00:00:00 GMT http://sedici.unlp.edu.ar:80/handle/10915/36243 2012-01-01T00:00:00Z In this paper the implementation of passive loops as a tool for magnetic field mitigation is studied. A theoretical introduction that describes the problem mathematically and physically is presented. Using this formulation a tool to estimate the magnitude and phase of current induced in passive loops is developed and the values obtained are compared with measurements to validate the model. Finally, calculations and measurements are performed for magnetic field with and without the implementation of loops on scale models. The analysis considers different sections of conductors used in loops, and different sizes and shapes. http://sedici.unlp.edu.ar:80/handle/10915/36215 Articulo Revista de Ingeniería; vol. 149 Esta presentación pretende definir técnicamente qué son los "apagones", cuáles son las posibles causas, (climáticas, técnicas y humanas) que los pueden originar, y qué se puede hacer para minimizar su ocurrencia. A modo de ejemplo se muestran algunos de los apagones de mayor magnitud ocurridos en el mundo y que causaron gran impacto en los países donde ocurrieron. Extracto de la disertación dada por el Ing. Jorge Luis Agüero en el acto de su incorporación como Académico realizada el 17-05-2012 y titulada: "APAGONES: ¿es posible evitarlos?" Versión completa en: http://www.acaingpba.org.ar/Conferencia%20Incorporacion%20Jorge%20Aguero%2017-5-2012.pdf Sun, 01 Jan 2012 00:00:00 GMT http://sedici.unlp.edu.ar:80/handle/10915/36215 2012-01-01T00:00:00Z Esta presentación pretende definir técnicamente qué son los "apagones", cuáles son las posibles causas, (climáticas, técnicas y humanas) que los pueden originar, y qué se puede hacer para minimizar su ocurrencia. A modo de ejemplo se muestran algunos de los apagones de mayor magnitud ocurridos en el mundo y que causaron gran impacto en los países donde ocurrieron. http://sedici.unlp.edu.ar:80/handle/10915/36091 Objeto de conferencia ARGENCON Congreso Bienal de IEEE Argentina (Córdoba, Argentina, 2012) En este trabajo se presenta la aplicación de un Filtro Activo de Potencia Hibrido para la compensación de reactivo y armónicas, en el nivel de Media Tensión (MT) de una red eléctrica de una planta industrial. Se considera como algoritmo de control, la aplicación de la teoría d-q y la realización de la medición de la corriente a compensar en el sistema, estableciendo un lazo de control realimentado (feedback). Se analiza una topología híbrida denominada Filtro Activo de Potencia Hibrido Shunt “FAPHS”. Esta propuesta utiliza un banco de capacitores existente, transformado en un filtro pasivo, y conectado en serie con el Filtro Activo, para construir un filtro hibrido en el que la compensación complementaría la realiza el filtro activo. Se analizan diferentes escenarios de operación. La topología presenta muy buen comportamiento en condiciones de estado estacionario y transitorio.; This paper presents the application of a hybrid active power filter for reactive and harmonic compensation at the level of Medium Voltage (MV) of an electrical network of an industrial plant. It is considered as control algorithm, the application of the d-q theory and performing the current measuring in the system, establishing a feedback control loop (feedback). It is analyzed a hybrid topology called Shunt Hybrid Active Power Filter "SHAPF". This proposal uses an existing capacitor bank, transformed into a passive filter, and connected in series with the Active Filter to build a hybrid filter in which the compensation supplement is made by the active filter. We analyze different scenarios of operation. The topology has very good performance under steady state and transient. Sun, 01 Jan 2012 00:00:00 GMT http://sedici.unlp.edu.ar:80/handle/10915/36091 2012-01-01T00:00:00Z En este trabajo se presenta la aplicación de un Filtro Activo de Potencia Hibrido para la compensación de reactivo y armónicas, en el nivel de Media Tensión (MT) de una red eléctrica de una planta industrial. Se considera como algoritmo de control, la aplicación de la teoría d-q y la realización de la medición de la corriente a compensar en el sistema, estableciendo un lazo de control realimentado (feedback). Se analiza una topología híbrida denominada Filtro Activo de Potencia Hibrido Shunt “FAPHS”. Esta propuesta utiliza un banco de capacitores existente, transformado en un filtro pasivo, y conectado en serie con el Filtro Activo, para construir un filtro hibrido en el que la compensación complementaría la realiza el filtro activo. Se analizan diferentes escenarios de operación. La topología presenta muy buen comportamiento en condiciones de estado estacionario y transitorio. This paper presents the application of a hybrid active power filter for reactive and harmonic compensation at the level of Medium Voltage (MV) of an electrical network of an industrial plant. It is considered as control algorithm, the application of the d-q theory and performing the current measuring in the system, establishing a feedback control loop (feedback). It is analyzed a hybrid topology called Shunt Hybrid Active Power Filter "SHAPF". This proposal uses an existing capacitor bank, transformed into a passive filter, and connected in series with the Active Filter to build a hybrid filter in which the compensation supplement is made by the active filter. We analyze different scenarios of operation. The topology has very good performance under steady state and transient. http://sedici.unlp.edu.ar:80/handle/10915/36079 Objeto de conferencia XLIV CIGRE International des Grands Réseaux Electriques Session (París, Francia, 2012) It is widely known that more and more power electronic devices are being installed in power systems. The main reasons of this are the increasing number of large variable speed drives connected to medium or high-voltage grids, the installation of devices for voltage control and flicker mitigation such as SVCs, and last but not least the electronic equipment required to integrate renewable energy sources – such as wind farms – to the existing power system. On the other hand, nowadays, in most countries there are severe Power Quality rules that Utilities as well as customers have to comply with. Therefore, even though power electronic devices are installed in networks in order to improve certain issue, it is also necessary to assess carefully the levels of disturbances – mainly harmonics – that they also emit. The traditional procedure to determine the origin of such disturbances is to perform field measurements in all the plants containing power electronic equipment, located near the point in which high levels of disturbances have been detected. Nevertheless, in most cases field engineers find it difficult to have access to the plants belonging to Utilities and also to the different industries settled nearby, which are also likely to emit disturbances. In addition, the task of installing the PQ recorder in the electrical cabinets inside the plant demands a considerable time, as well. With the intention of avoiding all the difficulties that can arise when field engineers are searching for a disturbing load, it was considered a great challenge to design a novel device to make the field work simpler. Such a challenge was based on designing a measuring system capable of recording voltage waveforms with no physical contact with the installations and without the assistance of Utilities personnel. In order to achieve this goal an Electric Field Sensor (EFS) was employed in the design of the measuring system. This paper deals with the results of testing an electric field measurement system – completely designed by the authors – for monitoring voltage Flicker and harmonics in aerial power systems. Some results of field measurements performed in plants containing disturbing loads are shown. Sun, 01 Jan 2012 00:00:00 GMT http://sedici.unlp.edu.ar:80/handle/10915/36079 2012-01-01T00:00:00Z It is widely known that more and more power electronic devices are being installed in power systems. The main reasons of this are the increasing number of large variable speed drives connected to medium or high-voltage grids, the installation of devices for voltage control and flicker mitigation such as SVCs, and last but not least the electronic equipment required to integrate renewable energy sources – such as wind farms – to the existing power system. On the other hand, nowadays, in most countries there are severe Power Quality rules that Utilities as well as customers have to comply with. Therefore, even though power electronic devices are installed in networks in order to improve certain issue, it is also necessary to assess carefully the levels of disturbances – mainly harmonics – that they also emit. The traditional procedure to determine the origin of such disturbances is to perform field measurements in all the plants containing power electronic equipment, located near the point in which high levels of disturbances have been detected. Nevertheless, in most cases field engineers find it difficult to have access to the plants belonging to Utilities and also to the different industries settled nearby, which are also likely to emit disturbances. In addition, the task of installing the PQ recorder in the electrical cabinets inside the plant demands a considerable time, as well. With the intention of avoiding all the difficulties that can arise when field engineers are searching for a disturbing load, it was considered a great challenge to design a novel device to make the field work simpler. Such a challenge was based on designing a measuring system capable of recording voltage waveforms with no physical contact with the installations and without the assistance of Utilities personnel. In order to achieve this goal an Electric Field Sensor (EFS) was employed in the design of the measuring system. This paper deals with the results of testing an electric field measurement system – completely designed by the authors – for monitoring voltage Flicker and harmonics in aerial power systems. Some results of field measurements performed in plants containing disturbing loads are shown. http://sedici.unlp.edu.ar:80/handle/10915/36074 Objeto de conferencia XLIV CIGRE International des Grands Réseaux Electriques Session (París, Francia, 2012) The use of electricity involves a broad range of activities that cause a wide variety of environmental impacts during the extraction, processing, transport and consuming procedures, due to their diversity, characteristics and relative importance. It is the role of the State to elaborate the guidelines and regulations for the environmental aspects in the different segments of the market, for different electrical energy sources and in all the stages of the process, from the initial evaluation to the construction and exploitation phases. On the other hand, the State should exercise the Controller’s role in order to guarantee the adequate environmental management. The State is also faced with the complexity of the negotiations with multiple key players – public, private, national and international- who decide the course of action and the contents of the environmental management. Among the environmental key aspects to be considerate, there are the electric and magnetic fields, in which society has taken special interest as they are believed to be involved in health hazard. Some of the faculties of the National Electricity Regulator (Ente Nacional Regulador de la Electricidad - ENRE) include the issuing of regulations and technical procedures to be fulfilled by the agents, and to verify their compliance. The ENRE has gathered information regarding electric and magnetic fields that includes those planned by the private environmental planning departments and those obtained ex-post in the role of controller. In order to systematize this information, a database has been designed considering different types of electric facilities, the company which they belong to, equipment used in the measurements, representative layouts with measure points and the profiles of electric and magnetic fields that were obtained. This database results in a management tool for evaluation of the evolution and control of the environmental parameters and in an instrument for communication purposes. Sun, 01 Jan 2012 00:00:00 GMT http://sedici.unlp.edu.ar:80/handle/10915/36074 2012-01-01T00:00:00Z The use of electricity involves a broad range of activities that cause a wide variety of environmental impacts during the extraction, processing, transport and consuming procedures, due to their diversity, characteristics and relative importance. It is the role of the State to elaborate the guidelines and regulations for the environmental aspects in the different segments of the market, for different electrical energy sources and in all the stages of the process, from the initial evaluation to the construction and exploitation phases. On the other hand, the State should exercise the Controller’s role in order to guarantee the adequate environmental management. The State is also faced with the complexity of the negotiations with multiple key players – public, private, national and international- who decide the course of action and the contents of the environmental management. Among the environmental key aspects to be considerate, there are the electric and magnetic fields, in which society has taken special interest as they are believed to be involved in health hazard. Some of the faculties of the National Electricity Regulator (Ente Nacional Regulador de la Electricidad - ENRE) include the issuing of regulations and technical procedures to be fulfilled by the agents, and to verify their compliance. The ENRE has gathered information regarding electric and magnetic fields that includes those planned by the private environmental planning departments and those obtained ex-post in the role of controller. In order to systematize this information, a database has been designed considering different types of electric facilities, the company which they belong to, equipment used in the measurements, representative layouts with measure points and the profiles of electric and magnetic fields that were obtained. This database results in a management tool for evaluation of the evolution and control of the environmental parameters and in an instrument for communication purposes.