A technical evaluation framework for the connection of DG to the distribution network

Papathanassiou, Stavros A.

doi:10.1016/j.epsr.2006.01.009

Cited by 86 publications

(51 citation statements)

References 18 publications

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“…The most important optimization studies can be given as grouped according to their objectives on which they are based; minimization of power losses [20,[23][24][25][26], minimization of energy losses [27], increasing system reliability based on various reliability indices [28,29] and minimization of costs [29,30]. There are also approaches to define the maximum permissible capacity value based on a single system criterion other than the hosting capacity and optimum values approaches [31][32][33][34][35][36][37].…”

Section: Motivation and Backgroundmentioning

confidence: 99%

Maximum Permissible Integration Capacity of Renewable DG Units Based on System Loads

et al. 2018

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Abstract:Increasing demand for electricity, as well as rising environmental and economic concerns have resulted in renewable energy sources being a center of attraction. Integration of these renewable energy resources into power systems is usually achieved through distributed generation (DG) techniques, and the number of such applications increases daily. As conventional power systems do not have an infrastructure that is compatible with these energy sources and generation systems, such integration applications may cause various problems in power systems. Therefore, planning is an essential part of DG integration, especially for power systems with intermittent renewable energy sources with the objective of minimizing problems and maximizing benefits. In this study, a mathematical model is proposed to calculate the maximum permissible DG integration capacity without causing overvoltage problems in the power systems. In the proposed mathematical model, both the minimum loading condition and maximum generation condition are taken into consideration. In order to prove the effectiveness and the consistency of the proposed mathematical model, it is applied to a test system with different case studies, and the results are compared with the results obtained from other models in the literature.

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Section: Motivation and Backgroundmentioning

confidence: 99%

Maximum Permissible Integration Capacity of Renewable DG Units Based on System Loads

et al. 2018

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“…Such an approach is relatively difficult to apply because it requires data usually unavailable in practice, which completely defeats the objective of simplicity and efficiency in the evaluation. For this reason, utility directives for the connection of DG adopt simpler and more straightforward procedures while also differentiating their requirements from those imposed by EN 50160 [15].…”

Section: Technical Constraintsmentioning

confidence: 99%

“…The requirements of [15,16] are satisfied for the data of the examined network if 19kV ≤ (U maxi + U mini )/2 ≤ 21 kV and U maxi − U mini ≤ 1.2 kV. The first requirement is not satisfied for the majority of the lines according to the upper limit, but the excess, although concerning enough nodes, is marginal.…”

Section: A S Safigianni Et Al 38mentioning

confidence: 99%

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Distributed Generation Effects on Large-Scale Distribution Networks

Safigianni¹,

Koutroumpezis²,

Spyridopoulos³

2014

ENG

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This paper examines the results of the distributed generation penetration in large-scale medium-voltage power distribution networks. The network examined as a study case consists of twenty one lines fed by three power substations. The injected power comes mainly from photovoltaic units. Specifically, the influences of distributed generation on the network branch currents, losses and voltage profile as well as on the short-circuit level at the medium voltage busbars of the infeeding substations are examined according to international and national standards. The arising problems are explored and technical solutions are proposed. This paper is a pilot application as general conclusions concerning the extended distributed generation penetration in real power distribution networks are set out.

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“…Globally, as power demand grows and the use of renewable energy sources increase, it is typically met with an increase in grid complexity and distributed generation, which increases fault current levels and makes them harder to predict [1]. The installed switchgear capacity may no longer be sufficient to support this growth, presenting a need for fault current limiter to reduce the magnitude of fault currents before switchgear interruption [2].…”

Section: Introductionmentioning

confidence: 99%

Carbon doping of precursor boron powder for control of normal resistance of MgB₂bulks for specific use in fault current limiter applications

Archer¹,

Jarvis²

2014

J. Phys.: Conf. Ser.

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View the article online for updates and enhancements. Abstract. Magnesium Diboride (MgB 2 ) bulk superconductor has been manufactured in order to study the enhancement of the normal resistivity for application to superconducting fault current limiters (SFCLs). SFCLs have proven to be a viable means for limiting surge currents by dissipating fault energy as the superconductor quenches. As the current limiting behaviour is determined by the normal resistivity (ρ n ), research has been conducted to evaluate an effective means to increase ρ n for bulk superconducting MgB 2 , which is intrinsically much lower than for high temperature superconductors. Intragranular carbon doping has been confirmed as a means to increase ρ n , and was implemented by chemical vapour deposition (CVD) on the boron precursor powder by ethylene gas at 600 ºC for durations up to 6 hours in a tubular furnace apparatus. In situ manufacturing of MgB 2 bulk was performed using the reactive liquid magnesium infiltration technique. Overall, carbon doping provided a factor of 11.00 increase in the residual resistivity, ρ 0 , which provides the initial limiting action to fault currents, for an accompanying decrease in the critical temperature, T c , of 2 K.

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A technical evaluation framework for the connection of DG to the distribution network

Cited by 86 publications

References 18 publications

Maximum Permissible Integration Capacity of Renewable DG Units Based on System Loads

Maximum Permissible Integration Capacity of Renewable DG Units Based on System Loads

Distributed Generation Effects on Large-Scale Distribution Networks

Carbon doping of precursor boron powder for control of normal resistance of MgB₂bulks for specific use in fault current limiter applications

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A technical evaluation framework for the connection of DG to the distribution network

Cited by 86 publications

References 18 publications

Maximum Permissible Integration Capacity of Renewable DG Units Based on System Loads

Maximum Permissible Integration Capacity of Renewable DG Units Based on System Loads

Distributed Generation Effects on Large-Scale Distribution Networks

Carbon doping of precursor boron powder for control of normal resistance of MgB2bulks for specific use in fault current limiter applications

Contact Info

Product

Resources

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Carbon doping of precursor boron powder for control of normal resistance of MgB₂bulks for specific use in fault current limiter applications