Minimizing the impact of distributed generation of a weak distribution network with an artificial intelligence technique

Naily, Naser El; Saad, Saad M.; Hussein, Tarek; Mohamed, Faisal A.

doi:10.3103/s0003701x17020128

Cited by 20 publications

(12 citation statements)

References 7 publications

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“…However, further, improvement is required to overcome the negative values of relay coordination based on fault location. An online adaptive approach was proposed in [174] to alleviate the relay coordination issues with the change in short circuit levels. The approach utilized adaptive fuzzy logic to choose the proper offline settings based on network topology.…”

Section: C: Aritifical Intelligence Techniquesmentioning

confidence: 99%

A Comprehensive Review on Protection Strategies to Mitigate the Impact of Renewable Energy Sources on Interconnected Distribution Networks

et al. 2021

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Technology advancement in the last few decades allows large penetration of renewable energy resources in the distribution network (DN). The integration of such resources has shown a substantial impact on DN through power loss reduction and improved network reliability. Besides this, the existing protection system has encountered coordination challenges due to the bidirectional power flow, different types and capacity of generation sources, and changes in fault levels due to network operating modes (grid-connected or islanded). Such conditions may cause the relays to malfunction and imperil the effectiveness of the existing protection scheme. Therefore, an efficient and robust protection coordination scheme is imperative to avoid network reliability and stability issues to the grid. This review paper presents a comparative analysis of various protection techniques implemented to alleviate the impact of integrated resources into DN. Moreover, a comparison of classical and modified protection approaches in terms of advantages, shortcomings, and implementation costs is presented. The prime objective of this study is to highlight the prominence of utilizing user-defined programmable relays for modern DNs. Moreover, recommendations are presented by considering the application of user-defined relay characteristics that can be proved as a robust protection scheme to cope with the protection challenges in existing and future power systems developments.INDEX TERMS Distribution networks (DN), microgrids (MG), protection coordination scheme, renewable energy resources (RES), user-defined characteristics (UDC).

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Section: C: Aritifical Intelligence Techniquesmentioning

confidence: 99%

A Comprehensive Review on Protection Strategies to Mitigate the Impact of Renewable Energy Sources on Interconnected Distribution Networks

et al. 2021

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“…Distributed generation can bring many economic, technological and environmental benefits, but at the same time bring many challenges [39]. Previous studies have shown that distributed generation poses several problems for the protection of the distribution network, such as false tripping in feeders, nuanced tripping of generation units, blinding protection and fault level modification [40], [41]. The important issue is therefore the coordination of protection devices.…”

Section: Figure 1 Coordination Of Overcurrent Relaysmentioning

confidence: 99%

Impact of distributed power generation on protection coordination in distribution network

Idrissi

Mariami

Belfqih

et al. 2021

IJEECS

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<p>In the whole world and especially in Morocco, the electric power sector faces significant challenges and the demand for energy is increasing as fossil fuel sources are disappearing. Moreover, the high cost of construction of large production plants and the obligation to reduce greenhouse gas emissions are among the factors pushing the energy sector to integrate distributed generators DGs based on renewable energies into power grids. However, the integration of these generators increased the values of short-circuit currents in the network, which poses a real threat to the existing protection coordination systems in the distribution network. The aim of this article is to bring together in a single platform all available research addressing the issue of protection coordination in the presence of DGs in the distribution network, in order to help researchers identify future scope. This paper presents a review of the impact of distributed generators on the protection coordination of distribution networks. The solutions proposed in the literature, to mitigate the negative impact of DGs, have been investigated in detail, along with the limitations of these proposed techniques.</p>

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“…Therefore, the protective relays may not carry on its functions accurately, since the operation of the protective relays in the distribution level based upon the short-circuit sensitivity [10]. Introducing DGs to the distribution network associate further protection issues such as blinding of protective devices, false tripping, and reclosure-fuse miscoordination [11,12]. Moreover, DG units can contribute a large current enough to trip the protective device on the feeder connecting the DG before the protective device on the faulted line, especially in synchronous machines based [13].…”

Section: Protection Problemsmentioning

confidence: 99%

Power Quality and System Stability Impact of Large-Scale Distributed Generation on the Distribution Network: Case Study of 60 MW Derna Wind Farm

Saad¹,

Naily²,

Wafi³

et al. 2018

Stability Control and Reliable Performance of Wind Turbines

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Wind energy (WE) has become one of the most promising and developed forms of renewable energy source due to its efficiency and the availability of different capacities according to the loading requirements. The integration of wind turbines in the Libyan network has become an indispensable choice due to Libya's distinguished location and for the Libyan National Initiative. Despite the numerous benefits of WE, the penetration of WE sources in the distribution network has some negative impacts related to the quality and reliability of the electric power supplied to the network. Owing to, the intermittent nature of these sources and electronic circuits needed to regulate the extracted power to comply with the grid requirements. In this chapter, implementation of the eastern Libyan network in NEPLAN and MATLAB/SIMULINK packages are carried out to investigate and analyze the significance of wind farm penetration in the medium voltage level of Libyan Distribution Network. A 60 MVA wind farm system has been connected to the Libyan distribution network according to the Libyan National Initiative. Different penetration scenarios are simulated to testify the technical aspects of integrating WE on the distribution level.

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Minimizing the impact of distributed generation of a weak distribution network with an artificial intelligence technique

Cited by 20 publications

References 7 publications

A Comprehensive Review on Protection Strategies to Mitigate the Impact of Renewable Energy Sources on Interconnected Distribution Networks

A Comprehensive Review on Protection Strategies to Mitigate the Impact of Renewable Energy Sources on Interconnected Distribution Networks

Impact of distributed power generation on protection coordination in distribution network

Power Quality and System Stability Impact of Large-Scale Distributed Generation on the Distribution Network: Case Study of 60 MW Derna Wind Farm

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