Investigating Particularities of Infeed and Fault Resistance Effect on Distance Relays Protecting Radial Distribution Feeders With DG

Nikolaidis, Vassilis C.; Tsimtsios, Aristotelis M.; Safigianni, A.

doi:10.1109/access.2018.2804046

Cited by 39 publications

(15 citation statements)

References 14 publications

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“…However, distance relays face difficulties in power distribution systems with short lines, dynamically changing in-feeds from installed PV systems and substantially unbalanced lines. Some of the challenges of application of distance protection for power distribution systems are discussed in [46]. The directional over-current relay with adaptive settings is another possible approach [47].…”

Section: E Impact On Existing Protection Schemesmentioning

confidence: 99%

Fundamentals of power systems modelling in the presence of converter-interfaced generation

Paolone

Gaunt

Guillaud

et al. 2020

Electric Power Systems Research

154

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This survey paper discusses the fundamentals of power systems modelling in the presence of large amounts of converter-interfaced generation (CIG). By referring to real-life events characterised by anomalous dynamics associated to the presence of CIG, the concepts of narrow versus broad band signals are first recalled along with the limitation of the meaning of apparent power, power factor and reactive power. In this regard, the adequacy of the phasor representation of voltages and currents waveforms is thoroughly discussed. Then, with respect to the central subject of control of power converters, a revised definition of grid-following and grid-forming converters is provided along with a thorough discussion of their associated controls and a comprehensive classification for both classes of converters. Several applications inspired by actual case studies are included in the paper in order to provide realistic application examples.

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Section: E Impact On Existing Protection Schemesmentioning

confidence: 99%

Fundamentals of power systems modelling in the presence of converter-interfaced generation

Paolone

Gaunt

Guillaud

et al. 2020

Electric Power Systems Research

154

View full text Add to dashboard Cite

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“…Many other researchers propose extending out the distance relay reach in the distribution network with the distributed generation, as well as applying the distance protection scheme in a mixed distribution network with DG (Nikolaidis et al 2018). The author has investigated the aspect of DG contribution and the deviation in resistance measurement in radial distribution feeders with DG.…”

Section: Related Workmentioning

confidence: 99%

Investigating the effect of DG infeed on the effective cover of distance protection scheme in mixed-MV distribution network

Saad

Naily

Mohamed

2018

Int. J. Renew. Energy Dev.

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The environmental and economic features of renewable energy sources have made it possible to be integrated as Distributed Generation (DG) units in distribution networks and to be widely utilized in modern distribution systems. The intermittent nature of renewable energy sources, altering operational conditions, and the complex topology of active distribution networks makes the level of fault currents significantly variable. Thus, the use of distance protection scheme instead of conventional overcurrent schemes offers an appropriate alternative for protection of modern distribution networks. In this study, the effect of integrating multiple DG units on the effective cover of distance protection schemes and the coordination between various relays in the network was studied and investigated in radiology and meshed operational topologies. Also, in cases of islanded and grid-connected modes. An adaptive distance scheme has been proposed for adequate planning of protection schemes to protect complex networks with multiple distribution sources. The simplified simulated network implemented in NEPLAN represents a benchmark IEC microgrid. The comprehensive results show an effective protection measure for secured microgrid operation.Article History: Received October 18th 2017; Received in revised form May 17th 2018; Accepted July 8th 2018; Available onlineHow to Cite This Article: Saad, S.M., Naily, N.E. and Mohamed, F.A. (2018). Investigating the Effect of DG Infeed on the Effective Cover of Distance Protection Scheme in Mixed-MV Distribution Network. International Journal of Renewable Energy Development, 7(3), 223-231.https://doi.org/10.14710/ijred.7.3.223-231

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“…On the other hand, the second strategies focus on improving the protection systems to cope with the protection problems related to DG integration in the micro‐grids. In this regard, different measures are proposed consist of applying fault current limiters (FCLs) to improve the DG's fault ride‐through (FRT) capability, 9,10 using the new and programmable protection devices, 11‐13 proposing different protection schemes based on distance, differential or directional relays, 14‐18 and applying the communication systems for improving the performance of the protection systems 19,20 . While the first strategies can solve the protection issues, it may bring adverse impacts on the performance of the power system.…”

Section: Introductionmentioning

confidence: 99%

“…Another classification of protection coordination methods of active distribution systems is presented in Table 1. According to Table 1, both DG‐based and the protection system (PS)‐based strategies can be implemented in an offline 15,22‐24 or online 8,25‐30 manner. In the offline methods, the coordination of protection devices is ensured in sizing and siting of DGs in the planning stage 6,31‐33 or output of DGs in operation stage 8,34‐36 .…”

Section: Introductionmentioning

confidence: 99%

A novel adaptive protection coordination scheme for radial distribution networks in the presence of distributed generation

Bisheh

Fani

Shahgholian

2021

Int Trans Electr Energ Syst

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Summary Developing micro‐grids and increasing penetration of distributed generation (DG) bring significant techno‐economic benefits to power systems. However, the presence of DG can affect the performance of the protection system. In particular, the coordination of over‐current protection relays in the presence of DGs is a challenging task. In this article, an adaptive algorithm is proposed for protection coordination of over‐current relays. Once the coordination of relays is disturbed due to the presence of DG, the characteristic curve of the backup relay is adaptively modified based on the characteristic curve of the main relay in such a way that the coordination time interval (CTI) be in the acceptable range and therefore the coordination of relays is maintained. The proposed algorithm can maintain the coordination of over‐current relays locally only by controlling current parameter of backup relay and without imposing any restriction on the output power of DGs. Therefore, the proposed protection coordination scheme allows system operators and DG owners to exploit DG benefits without concerning about protection aspects related to the presence of DGs. The efficiency and applicability of the proposed method are validated using simulations on a typical industrial 20 kV radial distribution system. The simulation results show that the proposed algorithm can maintain the CTI of the main and backup relays in an acceptable range for various penetration levels of DGs.

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Investigating Particularities of Infeed and Fault Resistance Effect on Distance Relays Protecting Radial Distribution Feeders With DG

Cited by 39 publications

References 14 publications

Fundamentals of power systems modelling in the presence of converter-interfaced generation

Fundamentals of power systems modelling in the presence of converter-interfaced generation

Investigating the effect of DG infeed on the effective cover of distance protection scheme in mixed-MV distribution network

A novel adaptive protection coordination scheme for radial distribution networks in the presence of distributed generation

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