Robust coordination of directional overcurrent relays using a matheuristic algorithm

Costa, Mateus H.; Saldanha, R.R.; Ravetti, Martı́n Gómez; Carrano, Eduardo G.

doi:10.1049/iet-gtd.2016.1010

Cited by 48 publications

(14 citation statements)

References 68 publications

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“…Minimising relay operating times while considering coordination constraints is a non-linear programming optimisation problem. To solve this problem, various metaheuristic algorithms [3,13,27,32,[35][36][37][38] deterministic algorithms [7,14,15,24,39] and their combination [22,26,[40][41][42][43] have been employed in the literature. In our previous study [43], the merits and demerits of each optimisation approach were discussed in detail.…”

Section: Introductionmentioning

confidence: 99%

Highly sensitive microgrid protection using overcurrent relays with a novel relay characteristic

Darabi

Bagheri

Gharehpetian

2020

IET Renewable Power Generation

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Following the high penetration of synchronous generators (SGs) in the power network, optimal overcurrent coordination improvement under faulty conditions has become a crucial problem. To reduce the overcurrent relay operating time, a new overcurrent relay curve is proposed in this study. Then, the overcurrent coordination problem is overcome by using a robust combinatorial optimisation method. Additionally, SG sizing and location is performed to verify the merits of both the proposed relay curve and the applied optimisation algorithm. The proposed relay curve performance is compared with other non-standard relays characteristic available in the literature for a standard microgrid. Then, the proposed relay curve is applied to both the 8-bus transmission and the 33 kV distribution portion of the 30-bus IEEE standard power test systems. Then, the SG transient stability for different fault locations is analysed. Finally, an accurate comparison between the proposed relay curve and standard/non-standard curves available in the literature is provided by applying the same optimisation method and network topology. The simulation results confirm the superiority of the proposed relay curve.

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Section: Introductionmentioning

confidence: 99%

Highly sensitive microgrid protection using overcurrent relays with a novel relay characteristic

Darabi

Bagheri

Gharehpetian

2020

IET Renewable Power Generation

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“…In [17], a new directional algorithm is proposed, which can detect faults direction using the only sign of the imaginary part of the post-fault current phasor. The article by Costa et al [18] explains how directional relays should be coordinated to operate as fast as possible and in the adequate sequence. In relation to all papers, the review paper [19] presents the state-of-the-art technologies and techniques for determining single-phase earth fault location on distribution networks.…”

Section: Introductionmentioning

confidence: 99%

Wide range algorithm for directional earth‐fault protection without voltage inputs

Stojanović

Žarković

2020

IET Generation, Transmission & Distribution

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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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Robust coordination of directional overcurrent relays using a matheuristic algorithm

Cited by 48 publications

References 68 publications

Highly sensitive microgrid protection using overcurrent relays with a novel relay characteristic

Highly sensitive microgrid protection using overcurrent relays with a novel relay characteristic

Wide range algorithm for directional earth‐fault protection without voltage inputs

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

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