Planning open and closed-loop feeders with efficiency analysis

Morillo, Jose L.; Pérez, Juan F.; Quijano, Nicanor; Cadena, Alberto

doi:10.1109/ptc.2015.7232656

Cited by 4 publications

(4 citation statements)

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“…In the case of the substation, the upgrades are calculated by using binary variables that choose the capacities to be installed based on previously defined capacities: 100, 200, 500, 1000, and 1500 kVA. Equation (15) shows how the substation capacity required in year y is calculated based on the capacity in year y -1 and the capacity to add, which is determined by choosing one or more of the five available possible size capacities Sz by using a binary variable Bn. The total capacity to add-in is the sum of the selected elements:…”

Section: Constraints For Power Substation Upgradesmentioning

confidence: 99%

Low-Capacity Exploitation of Distribution Networks and Its Effect on the Planning of Distribution Networks

et al. 2020

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The continuous variation and dispersion of the load demand during a 24-h day are uncontrolled aspects that affect the efficiency, operational conditions, and total cost of the power distribution network. The cost of the network is strongly related to the peak of demand, but the available capacity of the network is not used efficiently during the day because feeders and branches usually work under 70% of their full capacity. In this way, it is necessary to measure how efficiently the distribution network capacity is used and to identify the aspects that can be modified to improve it. This article proposes a new exploitation capacity index to measure the efficiency of a/the whole distribution network throughout the day in relation to the total available capacity of the branches that compose the network. The paper presents the mathematical formulation and the validation process of the index, and then it provides a planning case study in which the index and the total cost of the planning problem are calculated and compared in four different scenarios in which the peak of the load demand changes. The results show a direct relation between the exploitation capacity and the peak of demand, so lower exploitation capacities are strongly related to higher peaks of demand. As for the capital investments for the network planning, it is found that higher peaks of demand involve more upgrade necessities and higher capital investments compared to the other cases.

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Section: Constraints For Power Substation Upgradesmentioning

confidence: 99%

Low-Capacity Exploitation of Distribution Networks and Its Effect on the Planning of Distribution Networks

et al. 2020

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“…Las redes de distribución primaria son la columna vertebral del sistema de distribución y operan con niveles de tensión que van de 11.4 kV hasta 115 kV, con topologías que pueden ser en anillo, enmalladas o radiales. Las redes de distribución secundaria se encargan de interconectar la red de distribución primaria con el usuario final a través de los alimentadores de media y baja tensión, y usualmente manejan topologías de red en configuración radial [5]- [7].…”

Section: Modernización De Los Sistemas De Distribuciónunclassified

“…Uno de los aspectos que facilitaría esta flexibilización es la modernización de los sistemas de medición y comunicación para garantizar la confiabilidad del sistema [7], [9], sin embargo, la modernización implica un aumento significativo en las inversiones de capital.…”

Section: Evolución Y Crecimiento De Las Redisunclassified

“…De esta manera se puede cambiar la topología de la red pasando de una topología radial a enmallada o viceversa, se pueden aislar secciones o zonas de la red para despejar fallas y se puede hacer la operación de algunos tramos o secciones de la red en modo isla o conectados directamente a la red de distribución primaria. Además de mejorar las condiciones de operación de la red, la reconfiguración ayuda a mejorar los índices de confiabilidad del sistema de distribución [7], [28].…”

Section: Reconfiguración De La Redunclassified

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