Impact of Distributed Generation on voltage profile and power losses in a test power grid

Lepadat, Ionel; Helerea, Elena; Abagiu, Sorin; Craiu, Mihai

doi:10.1109/optim.2017.7974959

Cited by 13 publications

(5 citation statements)

References 18 publications

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“…After that, both values in MW are converted into energy form in MWh as in (14) and (15). The total ELs (MWh) is the summation of the NLL and FLL in the energy unit is shown in (16).…”

Section: Transformer Energy Losses Estimationmentioning

confidence: 99%

“…A significant contribution of EL comes from the distribution network, primarily contributed by I 2 R losses in distribution feeders and both I 2 R and no-load losses from transformers [13]. Power companies and regulators all over the world are continuously finding solutions to accurately assess and mitigate EL in power systems as it is a crucial signal for an energy-efficient system [3], [14]- [16].…”

Section: Introductionmentioning

confidence: 99%

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An efficient method for estimating energy losses in distribution's feeder

et al. 2023

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This paper explains a simple and efficient methodology for calculating monthly energy losses (EL) using the load loss factor technique and a representative composite load profile. One of the important benefits of the proposed work is a simpler, more efficient and less rigorous method to estimate the system-wide energy loss of an extensive distribution network with reasonable accuracy. The sum of all EL provided by each feeder section is used to calculate the total feeder EL. A base case feeder with a typical cable type and power factor is used to generate regression equations, a peak power loss function to estimate the EL. A case study is then used to show the models and techniques that have been established. The result indicates a high level of agreement with the time-series load flow simulations (smaller than 10% deviations). With this model, an approach to estimate the EL of all radial feeders of various configurations and characteristics could be extended and implemented. The spreadsheet approach is ideal for completing a quick energy audit of existing distribution feeder EL and determining the sensitivity of distribution network efficiency to changes in feeder sections and load characteristics.

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“…After that, both values in MW are converted into energy form in MWh as in (14) and (15). The total ELs (MWh) is the summation of the NLL and FLL in the energy unit is shown in (16).…”

Section: Transformer Energy Losses Estimationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

An efficient method for estimating energy losses in distribution's feeder

et al. 2023

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“…La GD puede tener diferentes impactos en los sistemas de potencia que dependen de su correcta ubicación y dimensionamiento. Estos impactos han sido ampliamente discutidos en la literatura técnica e incluyen el mejoramiento del perfil de tensiones, la minimización de pérdidas y el aplazamiento de inversiones [14]. En este artículo se hace énfasis en dos aspectos primordiales: la confiabilidad y el perfil de tensiones en operación normal y bajo contingencias simples.…”

Section: Metodologíaunclassified

Valoración de programas de implementación de generación distribuida en sistemas de potencia

2019

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En este artículo se presenta una metodología para valorar programas de implementación de generación distribuida (GD) en sistemas de potencia. La valoración de los programas se hace a través de diferentes índices que consideran la cargabilidad y el perfil de tensión de la red ante diferentes escenarios operativos, como también el efecto de contingencias simples (criterio N-1). Inicialmente los índices se usan para diagnosticar el sistema e identificar elementos y escenarios operativos críticos. Posteriormente, se evalúa el efecto de la implementación de programas de GD en la red cuando esta se reparte de forma uniforme y cuando se ubica en los nodos críticos identificados en el caso base. Se realizaron varias pruebas en los sistemas IEEE de 24 y 57 barras. Los resultados muestran que la GD reduce en mayor medida la criticidad de líneas y escenarios operativos cuando esta es ubicada en nodos estratégicos.

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“…Then, electrical devices may be damaged due to modification in the equivalent load seen by the regulator or compensator. To obtain the maximum advantages of DG's, they must be located in the proper sited, to not interfere with the distribution network and to reduce their limitations about power injection (Grisales Noreña, Restrepo Cuestas, & Jaramillo Ramirez, 2017; Lepadat, Helerea, Abagiu, & Mihai, 2017;López-Lezama, Buitrago, & Villada, 2015;Narváez, López-Lezama, & Velilla, 2015).…”

Section: Voltage Regulationmentioning

confidence: 99%

The Why of Adaptive Protections in Modern Electrical Networks

Montenegro¹,

Gómez-Luna²,

Sáenz³

et al. 2019

Ing. Inv.

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Electrical networks are evolving and taking on more challenges as the inclusion of renewable energy and distributed generation units increase, specially at distribution levels. Big trends of generating electricity with alternative and renewable resources has promoted the formation of distribution networks subsystems or micro grids, capable of supplying their own electric demand and to export energy to the interconnected system, if necessary. However, the effects of these generation units into the network and into the microgrid as well are many, as harmonic distortion, voltage flickers and especially in electrical protections.This paper provides an overview about implementation of renewable energy and distributed generation worldwide, as well as an introduction to microgrids concept and its main impacts and challenges into the electric systems. Finally, the main impacts of microgrid on protection equipments are presented at a distribution level, being adaptive protections one of the solutions to the dynamic changes of the electric system.

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Impact of Distributed Generation on voltage profile and power losses in a test power grid

Cited by 13 publications

References 18 publications

An efficient method for estimating energy losses in distribution's feeder

An efficient method for estimating energy losses in distribution's feeder

Valoración de programas de implementación de generación distribuida en sistemas de potencia

The Why of Adaptive Protections in Modern Electrical Networks

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