Voltage modelling of LV feeders with dispersed generation: Limits of penetration of randomly connected photovoltaic generation

Gaunt, C.T.; Namanya, Emmanuel; Herman, R.

doi:10.1016/j.epsr.2016.08.042

Cited by 49 publications

(28 citation statements)

References 11 publications

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“…Thus, there are technique challenges of power quality, protection, stability, and voltage regulation [1, 2]. Researchers and engineers, therefore, are paying attention to the analysis and improvement of distribution feeders [3–5], communication infrastructures [6–9], energy storage systems [10, 11], and voltage regulation algorithms [12–21].…”

Section: Introductionmentioning

confidence: 99%

Clusters partition and zonal voltage regulation for distribution networks with high penetration of PVs

Ding

Zhang

Hu³

et al. 2018

IET Generation, Transmission & Distribution

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Section: Introductionmentioning

confidence: 99%

Clusters partition and zonal voltage regulation for distribution networks with high penetration of PVs

Ding

Zhang

Hu³

et al. 2018

IET Generation, Transmission & Distribution

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“…The bus chose to be controlled is bus 675 from the referred system. This bus was chosen in order to achieve a greater voltage rise and drop (Gaunt and Namaya 2017). All results showed are related to this bus parameters.…”

Section: Validationmentioning

confidence: 99%

Demand Side Management Strategy for Distribution Networks Volt/Var Control: A FCS-Model Predictive Control Approach

Fuhrmann

Monteiro

Dhulipala

et al. 2020

J Control Autom Electr Syst

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Due to the advent of distributed energy resources at distribution level, utility companies face new challenges in terms of voltage control. Existing works in the literature have proposed the use of demand side management (DSM) to provide ancillary services to the grid. Some works explored the use of thermal inertia of buildings to tackle the frequency regulation problem. Existing DSM strategies ignore the potential service loads can provide for the Volt/Var control (VVC) problem. The ability of smart buildings to provide reactive power support to the grid has not been exploited to date. In this paper, we present a finite control state model predictive control strategy for VVC in distribution networks. The robustness of this strategy is validated on a modified IEEE 13 bus system.

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“…Load assumptions have in general a high impact on the achievable HC. In [27], it is reported that "The worst cases of voltage rise occur when the PV-DG is at or close to its maximum output, and the difference between the load and the generation is at its highest" and further "Using deterministic models with average values for the loads underestimates the voltage impact of increasing PV-DG because the real loads on a feeder vary". Generally, the base load can be well monitored at secondary transformers supplying a particular area with a high number of customers.…”

Section: Methodsmentioning

confidence: 99%

A Large Scale Grid Data Analysis Platform for DSOs

2017

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Abstract:The number of fluctuating distributed energy resources (DER) in electricity grids is continuously rising. Due to the lack of operational information on low-voltage (LV) networks, conservative assumptions are necessary to assess the connection of generators to the grid. This paper introduces the hosting capability (HC) as a measure to assess the amount of DER that can be integrated in LV-feeders. The HC of a feeder is the minimum amount of DER that can be hosted in a feeder without reinforcement needs for a given DER-scenario and for a given admissible voltage rise. The hosting capability assessment was performed on the entire LV-grid data of two Austrian Distribution System Operators (DSOs) with more than 36,000 LV-feeders. In total, 40 HC-scenarios were calculated with varying admissible voltage rise levels, DER-scenarios and reactive power control strategies. It turned out that only few feeder parameters such as the resistance at the end node and the lowest ampacity value of feeders show a high correlation with the calculated HC. Further, the impact of the DER-scenario on the share of voltage and loading constrained feeders is rather limited. The gathered results are suitable to validate equivalent LV-feeders models to perform integrated power flow studies on the transmission and distribution grids. Besides the results obtained for the network data of the two DSOs, a performant, modular and parallelizable tool has been developed to automatically analyze large LV network sets.

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Voltage modelling of LV feeders with dispersed generation: Limits of penetration of randomly connected photovoltaic generation

Cited by 49 publications

References 11 publications

Clusters partition and zonal voltage regulation for distribution networks with high penetration of PVs

Clusters partition and zonal voltage regulation for distribution networks with high penetration of PVs

Demand Side Management Strategy for Distribution Networks Volt/Var Control: A FCS-Model Predictive Control Approach

A Large Scale Grid Data Analysis Platform for DSOs

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