Calidad y confiabilidad de los servicios eléctricos en América Latina

Levy, Alberto; Carrasco, Juan José Ojeda

doi:10.18235/0002366

Cited by 10 publications

(7 citation statements)

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“…Diversos estudios, muestran que la calidad y confiabilidad de los servicios de electricidad sea útil, además de ser suficiente, porque la cubertura vino creciendo en la orden de 0.6% anual en Latinoamérica (Levy & Carrasco, 2020). Para cubrir dicho el crecimiento será necesario las fuentes de energías renovables, sin embargo, carece de normativas locales (Gutierrez & Garcia, 2021).…”

Section: Introductionunclassified

Mejoramiento de Calidad de Energía con Generación Fotovoltaica en Redes de Baja Tensión en la Ciudad de Juliaca

Churata Huaraya,

Hurtado Arhuata,

Montes Apaza

et al. 2024

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En este trabajo de investigación de mejorar la calidad de energía con generación fotovoltaica, se realizó el estudio en una subestación de distribución BT5005400 de la ciudad de Juliaca, cuya recolección de información es en la fecha 22 de mayo 2021. Con el objetivo de mejoras la calidad de energía suministrada, se consideró características y factores como: red desbalanceada, la potencia consumida, la potencia del SFCR, ubicación; nivel de irradiancias y cargabilidad; realizando las simulaciones en varios escenarios. Para lograr, se diseñó tres SFCR, en donde se concluye que para efectos de no distorsionar los parámetros de la red se debe usar equipos que tengan certificaciones; también se determinó los parámetros que mayor efecto tiene sobre las variaciones de tensión, y cuáles serían los parámetros óptimos que permitan mantener mejor lo niveles de tensión; este estudio se realizó mediante el análisis factorial fraccionado y optimización de parámetros; de los cuales se determinó que si se puede lograr mejorar los niveles de tensión. En el modelo ajustado se observó que a medida que se aumenta la potencia de generación del SFCR aumenta los niveles de tensión, además es el factor con mayor efecto significativo, con un valor óptimo es de 35.0kW (70% de potencia de la subestación) y la ubicación optima de conexión es más alejada de la subestación. Esta optimización se realizó en el mes de menor irradiancia registrada y la red radial. Para la cargabilidad no se encontró efecto significativo, por lo que no se incluyó en el modelo.

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Section: Introductionunclassified

Mejoramiento de Calidad de Energía con Generación Fotovoltaica en Redes de Baja Tensión en la Ciudad de Juliaca

Churata Huaraya,

Hurtado Arhuata,

Montes Apaza

et al. 2024

View full text Add to dashboard Cite

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“…Other issues that add to these situations are energy quality and reliability. In South American countries, values of interruption rates are greater than 10 h per year, which is high compared to the interruption rates perceived by an energy end‐user in developed countries (lower than 10 h per year) [9]. It is therefore imperative to address this problem that affects the energy service in developing countries.…”

Section: Introductionmentioning

confidence: 99%

Demand response integration in microgrid planning as a strategy for energy transition in power systems

Mina-Casaran

Echeverry

Lozano

2021

IET Renewable Power Gen

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For a long time, the planning of power systems has considered technical and economic aspects related to Supply Side Management. Given that this traditional planning approach is not very flexible, and due to new technological trends like the adoption of smart grids, it has become necessary for demand to play an active role in the operation of power systems. This raises the need to implement a new process for power system planning, focusing on technologies such as microgrids with Demand Side Management, which contribute to the sustainable development of communities. In this paper, a comprehensive review of microgrid planning, considering energy end‐user participation through Demand Response, is carried out. In addition, the main features and implications of Demand Response programs in microgrid planning are presented. As a contribution, in order to trigger a paradigm shift on how power systems are planned, the benefits of bottom‐up microgrid planning are presented.

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“…Table 1. Average annual duration of interruptions for Latin American countries [11]. Additionally, microgrids are capable of reacting, resisting and recovering quickly in the event of low-probability and high-impact events (such as hurricanes, earthquakes and floods), facilitating the rapid recovery of the power grid [12].…”

Section: Introduction 1motivationmentioning

confidence: 99%

“…(ii) For the operation of PV systems with on-grid inverter technology disconnected from the main grid, an inverter battery charger is always required. The minimum size of the batteries is, therefore, 60 Wh (enough to turn on a bulb) times the interruption duration d (this is the duration of the fault in hours), or as proposed in [39] from Equation (11), enough to smooth the power fluctuations at the output of the PV generator, implemented in this research as a guarantee of minimum battery storage.…”

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confidence: 99%

“…And E bess_res ≥ E bes_min E bess ≥ P insto 4.r max (11) where x bess corresponds to a binary variable that is activated when the planning tool decides to install batteries, E bess_res is a variable that can take any value between zero and infinity, E bess is the parameter that limits the minimum value of battery energy E bess (decision variable), according to the minimum storage requirements described above. Additionally, r max is the maximum ramp limit expressed in [%/min] according to [39].…”

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confidence: 99%

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On the Value of Community Association for Microgrid Development: Learnings from Multiple Deterministic and Stochastic Planning Designs

et al. 2021

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The reliability of the power grid is a constant problem faced by those who operate, plan and study power systems. An alternative approach to this problem, and others related to the integration of renewable energy sources, is the microgrid. This research seeks to quantify the potential benefits of urban community microgrids, based on the development of planning models with deterministic and stochastic optimization approaches. The models ensure that supply meets demand whilst assuring the minimum cost of investment and operation. To verify their effectiveness, the planning of hundreds of microgrids was set in the city of Santiago de Chile. The most important results highlight the value of community association, such as: a reduction in investment cost of up to 35%, when community microgrids are planned with a desired level of reliability, compared to single residential household microgrids. This reduction is due to the diversity of energy consumption, which can represent around 20%, on average, of cost reduction, and to the Economies of Scale (EoS) present in the aggregation microgrid asset capacity, which can represent close to 15% of the additional reduction in investment costs. The stochastic planning approach also ensures that a community can prepare for different fault scenarios in the power grid. Furthermore, it was found that for approximately 90% of the planned microgrids with reliability requirements, the deterministic solution for the worst three fault scenarios is equivalent to the solution of the stochastic planning problem.

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Calidad y confiabilidad de los servicios eléctricos en América Latina

Cited by 10 publications

References 0 publications

Mejoramiento de Calidad de Energía con Generación Fotovoltaica en Redes de Baja Tensión en la Ciudad de Juliaca

Mejoramiento de Calidad de Energía con Generación Fotovoltaica en Redes de Baja Tensión en la Ciudad de Juliaca

Demand response integration in microgrid planning as a strategy for energy transition in power systems

On the Value of Community Association for Microgrid Development: Learnings from Multiple Deterministic and Stochastic Planning Designs

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