http://hdl.handle.net/2117/3239 Wed, 19 Jun 2013 10:52:50 GMT 2013-06-19T10:52:50Z webmaster.bupc@upc.edu Universitat Politècnica de Catalunya. Servei de Biblioteques i Documentació no http://hdl.handle.net/2117/19339 Title: Mathematical model of total cross-tied photovoltaic arrays in mismatching conditions Authors: Ramos Paja, Carlos Andres; Bastidas, Juan David; Saavedra Montes, Andres Julian; Guinjoan Gispert, Francisco; Goez, M. Abstract: This paper presents a mathematical procedure for modeling rectangular (N rows with M modules each) and non-rectangular photovoltaic (PV) arrays in Total Cross-Tied (TCT) configuration operating in uniform and mismatching conditions. The proposed model uses the simple single diode representation for each PV module; then each row of the TCT array is represented as an equivalent non-linear PV circuit with a bypass diode, which allows to represent the TCT array as one string of equivalent PV circuits. The inflection voltages (array voltages that turn off the bypass diodes) of the string are calculated in order to solve only the non-linear equation system related to the active equivalent PV circuits for calculating the array current for a given voltage. Such a strategy reduces the computational burden and improves calculation speed. A TCT array of 4×2 with deep mismatching conditions was implemented in PSIM software to validate the proposed model, obtaining a correlation between model predicted data and the circuital simulation. The accuracy and improved calculation speed of the proposed model allow its use altogether with reconfiguration techniques as well as to reduce the time of energetic evaluations of TCT arrays for PV planning. Fri, 17 May 2013 13:38:51 GMT http://hdl.handle.net/2117/19339 2013-05-17T13:38:51Z Ramos Paja, Carlos Andres; Bastidas, Juan David; Saavedra Montes, Andres Julian; Guinjoan Gispert, Francisco; Goez, M. no Array voltage, Bypass diodes, Calculation speed, Computational burden, Mathematical procedures, Nonlinear equation system, Photovoltaic arrays, PV modules This paper presents a mathematical procedure for modeling rectangular (N rows with M modules each) and non-rectangular photovoltaic (PV) arrays in Total Cross-Tied (TCT) configuration operating in uniform and mismatching conditions. The proposed model uses the simple single diode representation for each PV module; then each row of the TCT array is represented as an equivalent non-linear PV circuit with a bypass diode, which allows to represent the TCT array as one string of equivalent PV circuits. The inflection voltages (array voltages that turn off the bypass diodes) of the string are calculated in order to solve only the non-linear equation system related to the active equivalent PV circuits for calculating the array current for a given voltage. Such a strategy reduces the computational burden and improves calculation speed. A TCT array of 4×2 with deep mismatching conditions was implemented in PSIM software to validate the proposed model, obtaining a correlation between model predicted data and the circuital simulation. The accuracy and improved calculation speed of the proposed model allow its use altogether with reconfiguration techniques as well as to reduce the time of energetic evaluations of TCT arrays for PV planning. http://hdl.handle.net/2117/19338 Title: Resonant pulse-shaping power supply for radar transmitters Authors: Bell Rodriguez, Miguel Victoria Ramo; Roberg, Michael; Pack, Riley; Garcia Fernandez, Pablo; Alarcón Cot, Eduardo José; Popoviç, Zoya; Maksimovic, Dragan Abstract: The final radiofrequency power amplifier (PA) of a radar transmitter module is a large factor in system efficiency. Typical radar transmitter signals are frequency-modulated with constant-amplitude pulse envelopes in order to optimize efficiency, resulting in spectral broadening and power radiated outside of the radar frequency band. This paper demonstrates a PA with a dynamic power supply which enables high efficiency while reducing the spectral emissions. The resonant pulse-shaping power supply generates a raised-cosine pulse envelope waveform with efficiency greater than 90% and peak envelope power around 6 W. Measured results with a 2.14-GHz GaN power amplifier with an efficiency of 76% at peak power demonstrate over 67% transmitter efficiency. Fri, 17 May 2013 13:29:14 GMT http://hdl.handle.net/2117/19338 2013-05-17T13:29:14Z Bell Rodriguez, Miguel Victoria Ramo; Roberg, Michael; Pack, Riley; Garcia Fernandez, Pablo; Alarcón Cot, Eduardo José; Popoviç, Zoya; Maksimovic, Dragan no pulse shaping methods, Pulsed power supplies, radar transmitters The final radiofrequency power amplifier (PA) of a radar transmitter module is a large factor in system efficiency. Typical radar transmitter signals are frequency-modulated with constant-amplitude pulse envelopes in order to optimize efficiency, resulting in spectral broadening and power radiated outside of the radar frequency band. This paper demonstrates a PA with a dynamic power supply which enables high efficiency while reducing the spectral emissions. The resonant pulse-shaping power supply generates a raised-cosine pulse envelope waveform with efficiency greater than 90% and peak envelope power around 6 W. Measured results with a 2.14-GHz GaN power amplifier with an efficiency of 76% at peak power demonstrate over 67% transmitter efficiency. http://hdl.handle.net/2117/19332 Title: CMOS fast transient low-dropout regulator Authors: Saberkari, Alireza; Alarcón Cot, Eduardo José; Shokouhi, Shahriar B. Abstract: In this paper a fast transient response CFA-based low-dropout regulator (LDO) is introduced. The circuit is stable for 0-100mA output load current and a 1μF output capacitor without any internal compensation. The CFA consists of a voltage follower with output local current-current feedback based on a level-shifted flipped voltage follower (LSFVF) which is instrumental to achieve high regulation and fast transient response. The inverting output buffer stage of the CFA together with current-mirror-based driving of the pass transistor results in high PSRR. Full transistor-level simulation results for an AMS 0.35μm CMOS process design reveal that the proposed LDO dissipates 58μA quiescent current at no-load condition and in worst case conditions has a current efficiency of 99.8%. For a 1μF output capacitor, the maximum output voltage variation to a 0-100mA load transient with rise and fall time of 10 and 100ns is only 2.5mV, and the PSRR is smaller than -58dB over the entire load current range. Fri, 17 May 2013 12:16:56 GMT http://hdl.handle.net/2117/19332 2013-05-17T12:16:56Z Saberkari, Alireza; Alarcón Cot, Eduardo José; Shokouhi, Shahriar B. no fast transient, level-shifted flipped voltage follower, low-dropout In this paper a fast transient response CFA-based low-dropout regulator (LDO) is introduced. The circuit is stable for 0-100mA output load current and a 1μF output capacitor without any internal compensation. The CFA consists of a voltage follower with output local current-current feedback based on a level-shifted flipped voltage follower (LSFVF) which is instrumental to achieve high regulation and fast transient response. The inverting output buffer stage of the CFA together with current-mirror-based driving of the pass transistor results in high PSRR. Full transistor-level simulation results for an AMS 0.35μm CMOS process design reveal that the proposed LDO dissipates 58μA quiescent current at no-load condition and in worst case conditions has a current efficiency of 99.8%. For a 1μF output capacitor, the maximum output voltage variation to a 0-100mA load transient with rise and fall time of 10 and 100ns is only 2.5mV, and the PSRR is smaller than -58dB over the entire load current range. http://hdl.handle.net/2117/18631 Title: LPV model for PV cell and fractional control of DC-DC converter for photovoltaic systems Authors: Martínez González, Rubén; Bolea Monte, Yolanda; Grau Saldes, Antoni; Martínez García, Herminio Abstract: This paper deals with the fractional modelling of a DC-DC converter, suitable in solar-powered electrical generation systems, and the design of a fractional controller for the aforementioned switching converter. A new model for PV cells is proposed in order to obtain a linear equation for V-I characteristic via scheduling dependence of temperature and irradiance. Due to the fractional nature of the ultracapacitors this kind of controller gives a suitable and good performance. Fri, 05 Apr 2013 08:37:19 GMT http://hdl.handle.net/2117/18631 2013-04-05T08:37:19Z Martínez González, Rubén; Bolea Monte, Yolanda; Grau Saldes, Antoni; Martínez García, Herminio no This paper deals with the fractional modelling of a DC-DC converter, suitable in solar-powered electrical generation systems, and the design of a fractional controller for the aforementioned switching converter. A new model for PV cells is proposed in order to obtain a linear equation for V-I characteristic via scheduling dependence of temperature and irradiance. Due to the fractional nature of the ultracapacitors this kind of controller gives a suitable and good performance. http://hdl.handle.net/2117/18574 Title: Fractional DC-DC converter in solar-powered electrical generation systems Authors: Martínez González, Rubén; Bolea Monte, Yolanda; Grau Saldes, Antoni; Martínez García, Herminio Abstract: This paper deals with the fractional modeling of a DC-DC buck-boost converter, suitable in solar-powered electrical generation systems, and the design of a fractional controller for the aforementioned switching converter. Although the modeling and design of the controller is carried out for this particular DC-DC converter, it can be easily extended to other kind of switching converter. In addition, the comparison between integer-order plan/controller and fractional-order plants/controller is carried out. The article also shows that, under the same design conditions, the fractional-order controller has a better performance and behaviour than the classical integer-order controller in both situations, that is, with integer-order plant and fractional-order plant models. Wed, 03 Apr 2013 12:02:03 GMT http://hdl.handle.net/2117/18574 2013-04-03T12:02:03Z Martínez González, Rubén; Bolea Monte, Yolanda; Grau Saldes, Antoni; Martínez García, Herminio no This paper deals with the fractional modeling of a DC-DC buck-boost converter, suitable in solar-powered electrical generation systems, and the design of a fractional controller for the aforementioned switching converter. Although the modeling and design of the controller is carried out for this particular DC-DC converter, it can be easily extended to other kind of switching converter. In addition, the comparison between integer-order plan/controller and fractional-order plants/controller is carried out. The article also shows that, under the same design conditions, the fractional-order controller has a better performance and behaviour than the classical integer-order controller in both situations, that is, with integer-order plant and fractional-order plant models. http://hdl.handle.net/2117/18570 Title: Battery management fuzzy control for a grid-tied microgrid with renewable generation Authors: Arcos Aviles, Diego Gustavo; Guinjoan Gispert, Francisco; Barricarte, J.; Marroyo, L.; Sanchís, P; Valderrama Blavi, H. Abstract: A fuzzy logic controller design for the battery management of a grid-tied real domestic microgrid including 6 kWp of PV and 6kW wind power renewable generators is presented. The fuzzy controller parameters design is undertaken on the basis of the minimization of a set of quality indices such as the battery dynamic range and the power variation range exchanged with the grid. The features of the proposed approach are highlighted with yearly real data by numerical simulations of the power profile injected into the grid and the battery state of charge. Wed, 03 Apr 2013 11:20:46 GMT http://hdl.handle.net/2117/18570 2013-04-03T11:20:46Z Arcos Aviles, Diego Gustavo; Guinjoan Gispert, Francisco; Barricarte, J.; Marroyo, L.; Sanchís, P; Valderrama Blavi, H. no Battery management systems, Control system synthesis, Distributed power generation, Fuzzy control, Minimisation, Numerical analysis A fuzzy logic controller design for the battery management of a grid-tied real domestic microgrid including 6 kWp of PV and 6kW wind power renewable generators is presented. The fuzzy controller parameters design is undertaken on the basis of the minimization of a set of quality indices such as the battery dynamic range and the power variation range exchanged with the grid. The features of the proposed approach are highlighted with yearly real data by numerical simulations of the power profile injected into the grid and the battery state of charge. http://hdl.handle.net/2117/18253 Title: Current-mode one-cycle control applied to linear–assisted DC/DC converters Authors: Martínez García, Herminio; Grau Saldes, Antoni; Bolea Monte, Yolanda Abstract: This article shows the proposal of a current-mode one-cycle control for linear-assisted DC/DC converters. Linear-assisted DC/DC converters are structures that allow to take advantages of the two classic alternatives in the design of power supply systems: voltage linear regulators (classic NPN topology or LDO –low dropout–) and switching DC/DC converters. The current-mode onecycle control technique is proposed in order to obtain the duty cycle of the linear-assisted converter switch. The proposed structure can provide an output with suitable load and line regulations. Thus, the paper shows the design and simulation results of the proposed currentmode one-cycle linear-assisted converter. Wed, 13 Mar 2013 10:28:34 GMT http://hdl.handle.net/2117/18253 2013-03-13T10:28:34Z Martínez García, Herminio; Grau Saldes, Antoni; Bolea Monte, Yolanda no This article shows the proposal of a current-mode one-cycle control for linear-assisted DC/DC converters. Linear-assisted DC/DC converters are structures that allow to take advantages of the two classic alternatives in the design of power supply systems: voltage linear regulators (classic NPN topology or LDO –low dropout–) and switching DC/DC converters. The current-mode onecycle control technique is proposed in order to obtain the duty cycle of the linear-assisted converter switch. The proposed structure can provide an output with suitable load and line regulations. Thus, the paper shows the design and simulation results of the proposed currentmode one-cycle linear-assisted converter. http://hdl.handle.net/2117/18174 Title: Chaos controller for switching regulators aiming enhanced design-space towards miniaturization Authors: Rodríguez Rodríguez, Enric; El Aroudi, Abdelali; Martínez García, Herminio; Poveda López, Alberto; Iu, H.; Alarcón Cot, Eduardo José Abstract: This paper tackles the control of fast-scale instabilities in a buck switching power converter aiming to expand its design-space towards miniaturization. After briefly revisiting the working principle of existing chaos controllers, the paper explores an alternative approach based on amplifying the harmonic at the switching frequency. Numerical simulations show that the proposed controller can concurrently improve both fast-scale and slow-scale stability margins. Finally, the paper proposes a chaos controller combined with an output ripple reduction network and studies their interaction with the aim of achieving both low-ripple and improved stability. Mon, 11 Mar 2013 13:08:49 GMT http://hdl.handle.net/2117/18174 2013-03-11T13:08:49Z Rodríguez Rodríguez, Enric; El Aroudi, Abdelali; Martínez García, Herminio; Poveda López, Alberto; Iu, H.; Alarcón Cot, Eduardo José no This paper tackles the control of fast-scale instabilities in a buck switching power converter aiming to expand its design-space towards miniaturization. After briefly revisiting the working principle of existing chaos controllers, the paper explores an alternative approach based on amplifying the harmonic at the switching frequency. Numerical simulations show that the proposed controller can concurrently improve both fast-scale and slow-scale stability margins. Finally, the paper proposes a chaos controller combined with an output ripple reduction network and studies their interaction with the aim of achieving both low-ripple and improved stability. http://hdl.handle.net/2117/18132 Title: Buck–Boost DC-DC converter with fractional control Authors: Martínez García, Herminio; Grau Saldes, Antoni; Bolea Monte, Yolanda; Martínez González, Rubén Abstract: This paper deals with the fractional modeling of a DC-DC buck-boost converter, suitable in solar-powered electrical generation systems, and the design of a fractional controller for the aforementioned switching converter. Although the modeling and design of the controller is carried out for this particular DC-DC converter, it can be easily extended to other kind of switching converter. In addition, the comparison between integer-order plant/controller and fractional-order plants/controller is carried out. The article also shows that, under the same design conditions, the fractional-order controller has a better performance and behaviour than the classical integer-order controller in both situations, that is, with integer-order plant and fractional-order plant models. Thu, 07 Mar 2013 13:21:12 GMT http://hdl.handle.net/2117/18132 2013-03-07T13:21:12Z Martínez García, Herminio; Grau Saldes, Antoni; Bolea Monte, Yolanda; Martínez González, Rubén no This paper deals with the fractional modeling of a DC-DC buck-boost converter, suitable in solar-powered electrical generation systems, and the design of a fractional controller for the aforementioned switching converter. Although the modeling and design of the controller is carried out for this particular DC-DC converter, it can be easily extended to other kind of switching converter. In addition, the comparison between integer-order plant/controller and fractional-order plants/controller is carried out. The article also shows that, under the same design conditions, the fractional-order controller has a better performance and behaviour than the classical integer-order controller in both situations, that is, with integer-order plant and fractional-order plant models. http://hdl.handle.net/2117/18131 Title: Estrategia de control para el equilibrado de corriente en transistores IGBT conectados en paralelo Authors: Pérez Delgado, Raúl; Román Lumbreras, Manuel; Velasco Quesada, Guillermo Abstract: En este artículo se realiza un breve estudio sobre las características que influyen en el reparto de corriente entre semiconductores conectados en paralelo. El estudio se centra en el reparto de corriente en transistores IGBT conectados en paralelo y los mecanismos que permiten compensar dicho reparto. Para ello se proponen dos estrategias de control para el equilibrado de corriente que están basadas en un caso en el cálculo del valor medio de la corriente y en el otro, en la asociación de parejas de transistores. Finalmente se presentan resultados experimentales basados en las estrategias de control propuestas. Thu, 07 Mar 2013 13:09:01 GMT http://hdl.handle.net/2117/18131 2013-03-07T13:09:01Z Pérez Delgado, Raúl; Román Lumbreras, Manuel; Velasco Quesada, Guillermo no En este artículo se realiza un breve estudio sobre las características que influyen en el reparto de corriente entre semiconductores conectados en paralelo. El estudio se centra en el reparto de corriente en transistores IGBT conectados en paralelo y los mecanismos que permiten compensar dicho reparto. Para ello se proponen dos estrategias de control para el equilibrado de corriente que están basadas en un caso en el cálculo del valor medio de la corriente y en el otro, en la asociación de parejas de transistores. Finalmente se presentan resultados experimentales basados en las estrategias de control propuestas. http://hdl.handle.net/2117/18128 Title: Current–Mode One-Cycle control applied to linear–assisted DC/DC converters Authors: Martínez García, Herminio; Grau Saldes, Antoni; Bolea Monte, Yolanda; Gámiz Caro, Juan Abstract: This article shows the proposal of an current-mode one-cycle control for linear-assisted DC/DC converters. Linear-assisted DC/DC converters are structures that allow to take advantages of the two classic alternatives in the design of power supply systems: voltage linear regulators (classic NPN topology or LDO –low dropout–) and switching DC/DC converters. The current-mode one-cycle control technique is proposed in order to obtain the duty cycle of the linear-assisted converter switch. The proposed structure can provide an output with suitable load and line regulations. The paper shows the design and simulation results of the proposed current-mode one-cycle linearassisted converter. Thu, 07 Mar 2013 12:40:02 GMT http://hdl.handle.net/2117/18128 2013-03-07T12:40:02Z Martínez García, Herminio; Grau Saldes, Antoni; Bolea Monte, Yolanda; Gámiz Caro, Juan no This article shows the proposal of an current-mode one-cycle control for linear-assisted DC/DC converters. Linear-assisted DC/DC converters are structures that allow to take advantages of the two classic alternatives in the design of power supply systems: voltage linear regulators (classic NPN topology or LDO –low dropout–) and switching DC/DC converters. The current-mode one-cycle control technique is proposed in order to obtain the duty cycle of the linear-assisted converter switch. The proposed structure can provide an output with suitable load and line regulations. The paper shows the design and simulation results of the proposed current-mode one-cycle linearassisted converter. http://hdl.handle.net/2117/18125 Title: Parallel Linear–Assisted DC-DC Switching Converter Authors: Martínez García, Herminio; Grau Saldes, Antoni; Bolea Monte, Yolanda; Gámiz Caro, Juan Abstract: Linear-assisted DC-DC converters or linear-switching hybrid DC–DC converters are power supply structures in which some important advantages from linear regulators and DC-DC switching converters converge. Normally, in linear assisted converters a series linear regulator is used in order to provide a constant ripple-free output voltage. However, this article shows the proposal of a linear–assisted DCDC converter or linear–&–switching hybrid converter including a parallel linear regulator. Thu, 07 Mar 2013 12:11:52 GMT http://hdl.handle.net/2117/18125 2013-03-07T12:11:52Z Martínez García, Herminio; Grau Saldes, Antoni; Bolea Monte, Yolanda; Gámiz Caro, Juan no Linear-assisted DC-DC converters or linear-switching hybrid DC–DC converters are power supply structures in which some important advantages from linear regulators and DC-DC switching converters converge. Normally, in linear assisted converters a series linear regulator is used in order to provide a constant ripple-free output voltage. However, this article shows the proposal of a linear–assisted DCDC converter or linear–&–switching hybrid converter including a parallel linear regulator. http://hdl.handle.net/2117/18119 Title: Linear–assisted DC-DC switching converter with constant switching frequency Authors: Martínez García, Herminio; Grau Saldes, Antoni; Bolea Monte, Yolanda; Gámiz Caro, Juan Abstract: This article shows the proposal of a linear–assisted converter or linear–&–switching hybrid converter with a constant switching frequency. The control loop of the system is based on the current–mode technique. The main disadvantage of a converter with current–mode control is the inherent instability of the loop when switch duty ratios are greater than 0.5. In order to make stable the proposed linear–assisted converter, the article shows the technique based on a slope compensation. Thu, 07 Mar 2013 11:43:50 GMT http://hdl.handle.net/2117/18119 2013-03-07T11:43:50Z Martínez García, Herminio; Grau Saldes, Antoni; Bolea Monte, Yolanda; Gámiz Caro, Juan no This article shows the proposal of a linear–assisted converter or linear–&–switching hybrid converter with a constant switching frequency. The control loop of the system is based on the current–mode technique. The main disadvantage of a converter with current–mode control is the inherent instability of the loop when switch duty ratios are greater than 0.5. In order to make stable the proposed linear–assisted converter, the article shows the technique based on a slope compensation. http://hdl.handle.net/2117/18084 Title: Banco de ensayos para la caracterización del rendimiento energético y del rendimiento del MPPT en convertidores fotovoltaicos Authors: Casellas Beneyto, Francisco; Velasco Quesada, Guillermo; Piqué López, Robert; Guinjoan Gispert, Francisco Abstract: En este trabajo se presenta una propuesta de ensayo para caracterizar el comportamiento del algoritmo de seguimiento de punto de máxima potencia (MPPT: Maximum Power Point Tracking) programado en los convertidores fotovoltaicos (PV: Photo-Voltaic). Este ensayo también permite estimar el rendimiento energético de dichos convertidores. Para los ensayos propuestos se utiliza un simulador de generador fotovoltaico (SAS: Solar Array Simulator) junto con un equipo para la medida y registro de potencia instantánea. Los convertidores ensayados (DUT: Device Under Test) para verificar el banco de pruebas utilizado son: un inversor con inyección a red y un convertidor DC/DC para carga de baterías. Para la evaluación del sistema se han realizado dos tipos de ensayos, uno denominado estático, para evaluar las fluctuaciones del algoritmo MPPT alrededor del punto de máxima potencia (MPP: Maximum Power Point) del generador PV y otro ensayo, denominado dinámico, para evaluar el comportamiento del MPPT cuando se produce un cambio en el valor de los parámetros que determinan el MPP del generador PV. Finalmente se presentan los resultados obtenidos tras los ensayos realizados y se valora el comportamiento de los DUT. Wed, 06 Mar 2013 10:37:22 GMT http://hdl.handle.net/2117/18084 2013-03-06T10:37:22Z Casellas Beneyto, Francisco; Velasco Quesada, Guillermo; Piqué López, Robert; Guinjoan Gispert, Francisco no En este trabajo se presenta una propuesta de ensayo para caracterizar el comportamiento del algoritmo de seguimiento de punto de máxima potencia (MPPT: Maximum Power Point Tracking) programado en los convertidores fotovoltaicos (PV: Photo-Voltaic). Este ensayo también permite estimar el rendimiento energético de dichos convertidores. Para los ensayos propuestos se utiliza un simulador de generador fotovoltaico (SAS: Solar Array Simulator) junto con un equipo para la medida y registro de potencia instantánea. Los convertidores ensayados (DUT: Device Under Test) para verificar el banco de pruebas utilizado son: un inversor con inyección a red y un convertidor DC/DC para carga de baterías. Para la evaluación del sistema se han realizado dos tipos de ensayos, uno denominado estático, para evaluar las fluctuaciones del algoritmo MPPT alrededor del punto de máxima potencia (MPP: Maximum Power Point) del generador PV y otro ensayo, denominado dinámico, para evaluar el comportamiento del MPPT cuando se produce un cambio en el valor de los parámetros que determinan el MPP del generador PV. Finalmente se presentan los resultados obtenidos tras los ensayos realizados y se valora el comportamiento de los DUT. http://hdl.handle.net/2117/17705 Title: Influencia de los parámetros de diseño de un inversor fotovoltaico en la estabilidad de una microred Authors: Rodríguez Villarreal, José Raúl; Biel Solé, Domingo; Guinjoan Gispert, Francisco Abstract: El incremento de la generación de energía distribuida en la red eléctrica ha despertado inquietudes respecto a la estabilidad de la misma. Los generadores fotovoltaicos conectados a la red eléctrica tienen que lidiar con variaciones en el consumo y la generación en la red, esto puede afectar el desempeño y la estabilidad de los generadores y de la red. Este documento presenta el efecto de los par´ametros de un generador fotovoltaico y la relación generación/consumo en la estabilidad de una microred. Además, se ajusta la ganancia del controlador de corriente del generador en función del consumo con el fin mantener la estabilidad de la microred para diferentes escenarios de generación/consumo. Wed, 13 Feb 2013 10:37:59 GMT http://hdl.handle.net/2117/17705 2013-02-13T10:37:59Z Rodríguez Villarreal, José Raúl; Biel Solé, Domingo; Guinjoan Gispert, Francisco no El incremento de la generación de energía distribuida en la red eléctrica ha despertado inquietudes respecto a la estabilidad de la misma. Los generadores fotovoltaicos conectados a la red eléctrica tienen que lidiar con variaciones en el consumo y la generación en la red, esto puede afectar el desempeño y la estabilidad de los generadores y de la red. Este documento presenta el efecto de los par´ametros de un generador fotovoltaico y la relación generación/consumo en la estabilidad de una microred. Además, se ajusta la ganancia del controlador de corriente del generador en función del consumo con el fin mantener la estabilidad de la microred para diferentes escenarios de generación/consumo.