Optimal coordination of protective relays

Nair, Divya S; Reshma, S.

doi:10.1109/icpec.2013.6527658

Cited by 12 publications

(2 citation statements)

References 9 publications

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“…The relay coordination problem identification with their constraints has been studied and calculated for ten relay test system. Divya S Nair et al [6] have briefly discussed about the protective system and use of appropriate protective relays to protect the power system elements. The calculation of constraints and objective function parameters has been discussed with the help of fourteen relay system.…”

Section: Introductionmentioning

confidence: 99%

Optimizing Power Management in Distribution Networks: A Mathematical Modeling Approach for Coordinated Directional Over-Current Relay Control

Kaur,

Ralhan,

Singh

et al. 2023

IJACSA

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Optimizing Power Management in Distribution Networks through Coordination of Directional Over-Current Relays summarizes a study or project focused on enhancing the management of power in distribution networks by optimizing the coordination of directional over-current relays. Directional overcurrent relays are critical components of power distribution systems, designed to safeguard the network against over-current faults while maintaining operational stability. Proper coordination of these relays is vital to ensure that faults are isolated and cleared efficiently without causing extensive disruptions. In this paper, a mathematical modeling approach is employed to address the optimization of power management in distribution networks. This approach likely encompasses the development of mathematical models and algorithms that consider factors such as fault types, fault locations, network topology, and relay settings to improve the coordination of directional over-current relays. Here, different optimization algorithms have been implemented to optimize the operating time of relays & hence power management. Cuckoo Search Algorithm (CSA), Fire-Fly Algorithm (FFA), Harmony Search Algorithm (HSA), and Jaya Algorithm are employed to solve the coordination problem for directional over-current relays (DOCRs) with different test systems. The outcomes of this research may have practical applications in power distribution systems, potentially leading to more resilient and responsive networks that better manage power distribution and reduce disruptions during faults and outages.

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Section: Introductionmentioning

confidence: 99%

Optimizing Power Management in Distribution Networks: A Mathematical Modeling Approach for Coordinated Directional Over-Current Relay Control

Kaur,

Ralhan,

Singh

et al. 2023

IJACSA

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“…The overcurrent relay settings are PSM and TSM, by which the necessary values of the time and current for the operation of the relay are determined [6]- [8]. According to the time-current characteristic 0885-8977 © 2014 IEEE.…”

Section: Introductionmentioning

confidence: 99%

Overcurrent Relays Coordination in Interconnected Networks Using Accurate Analytical Method and Based on Determination of Fault Critical Point

Alkaran

Vatani

Sanjari

et al. 2015

IEEE Trans. Power Delivery

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Overcurrent relays should be coordinated for different operation conditions in interconnected networks. In addition, the time interval should not reach under the predefined threshold for each pair of primary and backup relays for the faults occurring in the protection zone of the primary relay. An analytical approach is presented in this paper to calculate the impedance matrix of the network in fault condition in order to determine the critical fault point accurately. Overcurrent relays are coordinated by using the presented critical fault point instead of the close-in fault used in previous studies. Simulation results show the accuracy of the proposed method for overcurrent relays coordination in comparison with other methods. Index Terms-Coordination time interval, critical fault point, optimal coordination, overcurrent relay, primary and backup (P/B) relays.

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Comparative Study of Optimal Overcurrent Relay Coordination Using Metaheuristic Techniques

Ralhan¹,

Goswami²,

Ray

2018

Advances in Intelligent Systems and Computing

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Optimal coordination of protective relays

Cited by 12 publications

References 9 publications

Optimizing Power Management in Distribution Networks: A Mathematical Modeling Approach for Coordinated Directional Over-Current Relay Control

Optimizing Power Management in Distribution Networks: A Mathematical Modeling Approach for Coordinated Directional Over-Current Relay Control

Overcurrent Relays Coordination in Interconnected Networks Using Accurate Analytical Method and Based on Determination of Fault Critical Point

Comparative Study of Optimal Overcurrent Relay Coordination Using Metaheuristic Techniques

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