A high-performance hybrid algorithm to solve the optimal coordination of overcurrent relays in radial distribution networks considering several curve shapes

Kida, Alexandre A.; Pareja, Luis Alfonso Gallego

doi:10.1016/j.epsr.2016.05.029

Cited by 31 publications

(13 citation statements)

References 22 publications

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“…For example, set of characteristic variables was defined as it consisted of only the IEC SCs in [79,80,81,82,83,84] while optimization algorithm was able to choose a characteristic from eight different SCs for a relay in [85,86]. Similarly, only the IEC and the IEEE standard characteristics pool was used in [87] while this pool was extended by adding IAC and U.S. curves in [88]. It should be noted that although decrease in total OT of the relays was possible, keeping CTI as constant was almost impossible between the relay pairs with different characteristics.…”

Section: Instead Of Considering All the Constants As Optimization Variables Some Researchers Aimed To Combine Variousmentioning

confidence: 99%

Power system protection with digital overcurrent relays: A review of non-standard characteristics

Kiliçkiran

Şengör

Akdemir

et al. 2018

Electric Power Systems Research

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DOI to the publisher's website.• The final author version and the galley proof are versions of the publication after peer review.• The final published version features the final layout of the paper including the volume, issue and page numbers. Link to publication General rightsCopyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights.• Users may download and print one copy of any publication from the public portal for the purpose of private study or research. • You may not further distribute the material or use it for any profit-making activity or commercial gain • You may freely distribute the URL identifying the publication in the public portal.If the publication is distributed under the terms of Article 25fa of the Dutch Copyright Act, indicated by the "Taverne" license above, please follow below link for the End User Agreement:

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Section: Instead Of Considering All the Constants As Optimization Variables Some Researchers Aimed To Combine Variousmentioning

confidence: 99%

Power system protection with digital overcurrent relays: A review of non-standard characteristics

Kiliçkiran

Şengör

Akdemir

et al. 2018

Electric Power Systems Research

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“…In [7] a local-fit method was proposed by defining reference marks based on the OCR's characteristics. Furthermore, several metaheuristic algorithms were applied, like enhanced differential evolution [8], a combination of the differential evolution and linear programming problem [9], a genetic algorithm [10], a combination of the genetic algorithm and the linear programming problem [11], or a combination of a specialized genetic algorithm and an efficient heuristic algorithm [12]. Moreover, a symbiotic organism search algorithm [13], teaching learningbased optimization [14], particle-swarm optimization [15], ant-colony optimization [16], and whale optimization algorithm [17] were also applied.…”

Section: Introductionmentioning

confidence: 99%

Protection of MV Closed-Loop Distribution Networks With Bi-Directional Overcurrent Relays and GOOSE Communications

et al. 2019

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This paper proposes measures to improve the protection of MV distribution networks operating with feeders in a closed-loop arrangement. Bi-directional overcurrent relays (OCRs) are discussed, the selectivity of which is achieved through the timing coordination of their operation. The classic approach is formulated as a minimization of the operating times of all the OCRs. The proposed approach enhances the selectivity by considering the maximum operating time of substation OCRs and the unwanted trips of in-loop OCRs. Moreover, the sensitivity is also increased by introducing an objective function that minimizes the pickup-current settings of all the OCRs together with their operating times. Furthermore, to fulfill the demanding requirements for operating times, variable penalties are introduced. Thus, the optimization procedure is forced towards the region with viable solutions for the optimization problem. Two variants of self-adaptive differential evolution have been used that both show better convergence when compared to the classic differential evolution. Moreover, ten mutation strategies were tested, where ''rand/1/bin'' showed the best results. A comparison with other methods for timing coordination shows that the proposed optimization results in a comparable value for the OCRs' operating times. In order to further reduce the operating times, GOOSE communications between the OCRs are adopted. The proposed measures for improved protection operation are fully confirmed through dynamic simulations of the faults in the discussed 20-kV network. Moreover, the proposed protection design is already implemented and permanently operates in a 20-kV network with more than 5000 customers, whereas the field results show selective and reliable protection operation.

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“…In most of the papers related to the coordination of overcurrent relays, the standard relay characteristics have been used. In Abyaneh et al, it is assumed that the overcurrent relays have different standard characteristics. Therefore, to coordinate the relays, in addition to the relay settings, the type of standard relay and its characteristics are determined as well.…”

Section: Introductionmentioning

confidence: 99%

A robust approach for coordination of directional overcurrent relays in active radial and meshed distribution networks considering uncertainties

Shabani¹,

Karimi

2018

Int Trans Electr Energ Syst

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Summary Penetration of distributed generations in distribution networks (active distribution networks) has resulted in some problems such as change in short circuit level and direction of fault current flow. Such conditions may cause some relays to malfunction. In this paper, a method for coordinating directional overcurrent relays in active distribution networks taking uncertainties into consideration is proposed. These uncertainties include changes in operation conditions, changes in fault conditions, error in measuring equipment, and outage of distributed generations. Therefore, an optimization frame with new variables is presented, which can be used to create different characteristic curves. Taking uncertainties into account causes the number of constraints to increase and the problem of coordination of directional overcurrent relays to become more complicated. Thus, a two‐step approach is used to solve this problem. In the first step, an algorithm is used to form the constraints of the problem, then, in the second step, a hybrid optimization algorithm consisting of the cuckoo search algorithm and linear programming is proposed. The simulation results for active radial and meshed distribution networks are presented to demonstrate the effectiveness of the proposed approach.

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A high-performance hybrid algorithm to solve the optimal coordination of overcurrent relays in radial distribution networks considering several curve shapes

Cited by 31 publications

References 22 publications

Power system protection with digital overcurrent relays: A review of non-standard characteristics

Power system protection with digital overcurrent relays: A review of non-standard characteristics

Protection of MV Closed-Loop Distribution Networks With Bi-Directional Overcurrent Relays and GOOSE Communications

A robust approach for coordination of directional overcurrent relays in active radial and meshed distribution networks considering uncertainties

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