Infraestructura De Comunicaciones en Microrredes Electricas

García, Elvis Eduardo Gaona; Rodríguez, César Leonardo Trujillo; Rojas, Herbert E.

doi:10.14483/2248762x.8044

Cited by 3 publications

(2 citation statements)

References 21 publications

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“…Dado que en la actualidad no existen algoritmos de encaminamiento aplicado a las redes de sensores inalámbricos en microrredes, aún se está estandarizando las capas de red y transporte del modelo ISO/OSI (Bukowski y Ranade, 2012;Gaona-García et al, 2014). Estos protocolos deben ser compatibles con las características de latencia según sus aplicaciones para microrredes mostradas en la Tabla 1.…”

Section: Microrredes Aisladas De Tipo Ruralunclassified

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Protocolos de encaminamiento de datos para uso en microrredes rurales aisladas

2020

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Este documento presenta los resultados obtenidos al comparar dos protocolos de encaminamiento reactivos: vector distancia bajo demanda ad hoc y el protocolo de fuente dinámica. Se evaluaron métricas de calidad de servicio en dos topologías de red inalámbricas en una microrred eléctrica rural aislada. La estructura de la red fue simulada en Network Simulator 2, comparando las métricas de calidad de servicio como lo son el retardo promedio, el caudal de datos, la tasa de paquetes entregados exitosamente y la variación del retardo para las topologías tipo de red: árbol y malla. Los resultados muestran que el protocolo de encaminamiento reactivo bajo demanda presentó mejores indicadores de calidad de servicio en ambas topologías. Se concluye que el protocolo de encaminamiento reactivo bajo demanda cumpliría con los requisitos de telecomunicaciones para la operación de una microrred rural aislada con baja densidad de nodos.

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Section: Microrredes Aisladas De Tipo Ruralunclassified

“…Tabla 1: Requerimientos de latencia en la operación de una red de comunicaciones sobre una microrred. (Gaona-García et al, 2014;Saputro et al, 2012)…”

Section: Microrredes Aisladas De Tipo Ruralunclassified

Protocolos de encaminamiento de datos para uso en microrredes rurales aisladas

2020

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Adaptive Control of Photovoltaic Systems Based on Dual Active Bridge Converters

2022

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Dual active bridge converters (DAB) are used to interconnect photovoltaic (PV) generators with AC and DC buses or isolated loads. However, a controller is needed to provide a stable and efficient operation of the DAB converter when the PV generator must be interconnected with a DC bus, which is particularly important in microinverter applications. Therefore, this paper proposes the design of a cascade controller for a PV system based on a DAB converter. The converter is controlled using a peak current control and an adaptive PI voltage control; thus the methodology to design the cascade controller is developed in two steps; first, the PV system formed by a PV generator, a DAB converter, and an inverter or load is introduced, including the description of the leakage current; as a second step, the model of the PV system to design the cascade controller is presented. Then, a relationship between the phase shift factor and the peak current of the leakage inductor is derived, which is used to design the peak current controller to ensure the DAB converter operation at the most efficient operating condition. On the other hand, an adaptive PI controller for the PV voltage is designed to ensure the reference tracking provided by a maximum power point (MPP) algorithm. The effectiveness of the proposed cascade controller is demonstrated through realistic examples simulated in PSIM. The power and control circuits implemented in PSIM are presented to encourage the use of the proposed solution. The simulation results confirm the correct operation of the control system, which mitigates the oscillatory perturbation produced by an inverter connected to the PV system, and also ensures the maximum power extraction from the PV panel by following the MPP reference.

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Comprehensive Analysis of Microgrids Configurations and Topologies

Candelo-Becerra

Santos

2022

Sustainability

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Microgrids have been proposed as a solution to the growing deterioration of traditional electrical power systems and the energy transition towards renewable sources. One of the most important aspects of the efficient operation of a microgrid is its topology, that is, how the components are connected. Some papers have studied microgrid topologies; however, these studies do not perform an exhaustive analysis of the types of topologies, their applications, characteristics, or technical advantages and disadvantages. The contribution of this paper is the integration of the most important functional properties of microgrid topologies in terms of reliability, efficiency, structure, costs, and control methods. The study analyzes 21 topologies divided into six classifications with their respective sub-classifications. The analysis was based on the characteristics of the current (AC or DC), the control mechanisms, the transition between the operating modes, and the operating costs. As a result of the evaluation, it was evidenced that SST-based completely isolated coupled AC topologies, completely isolated two-stage AC decoupled, and multiple microgrids show the best performances. In contrast, the use of two-stage and three-stage partially isolated AC decoupled topologies is not recommended because of their high operating cost and low efficiency and reliability.

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Infraestructura De Comunicaciones en Microrredes Electricas

Cited by 3 publications

References 21 publications

Protocolos de encaminamiento de datos para uso en microrredes rurales aisladas

Protocolos de encaminamiento de datos para uso en microrredes rurales aisladas

Adaptive Control of Photovoltaic Systems Based on Dual Active Bridge Converters

Comprehensive Analysis of Microgrids Configurations and Topologies

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