Political Optimization Algorithm for Optimal Coordination of Directional Overcurrent Relays

Abdelhamid, Mohamed; Kamel, Salah; Mohamed, Mohamed A.; Aljohani, Mansour; Rahmann, Claudia; Mosaad, Mohamed I.

doi:10.1109/epec48502.2020.9320084

Cited by 10 publications

(13 citation statements)

References 12 publications

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“…where T i is the operation time of relay at any end of transmission line for i relay, TDS is its time dial setting, and I p is its pick-up current. The other α, β, and γ are constants with 0.14, 0.02, and 1, respectively [1].…”

Section: The Mathematical Modelling Of Coordination Problemmentioning

confidence: 99%

“…So, DOCRs are more expensive than normal OCRs but more effective than OCRs. These relays must be operating in the backup case, with a delay time higher than the primary relay [1].…”

Section: Introductionmentioning

confidence: 99%

“…In recent years, many optimization algorithms are used for solving coordination problems in literature, of DOCRs coordination, such as the particle swarm optimizer (PSO) and modified PSO in [8], genetic algorithm (GA) and hybrid GA in [9], biogeographybased optimization algorithms (BBO) in [10], differential evolution algorithm (DE) and trigonometric DE algorithm (Tri-DE) in [11], firefly algorithm (FA) and improved FA (IFA) in [12], hybridized whale optimization algorithm (WOA), and hybridized WOA in [13], Jaya Algorithm and oppositional Jaya algorithm (OJaya) in [14], moth-flame optimization (MFO) and improved MFO (IMFO) in [15], political optimization algorithm (PO) in [1], artificial optimizing algorithm(AEO) in [16], and evaporation rate water cycle algorithm in [17].…”

Section: Introductionmentioning

confidence: 99%

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An Adaptive Protection Scheme for Coordination of Distance and Directional Overcurrent Relays in Distribution Systems Based on a Modified School-Based Optimizer

et al. 2021

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This paper presents an adaptive protection scheme (APS) for solving the coordination problem that deals with coordination directional overcurrent relays (DOCRs) and distance relays second zone time, in relation to coordination with DOCRs. The coordination problem becomes more complex with the impact of renewable energy sources (RES) when added to the distribution grid. This leads to a change in the grid topology, caused by the on/off states of the distribution generators (DG). The frequency of topological changes in distribution grids poses a challenge to the power system’s protection components. The change in the state of DGs leads to malfunction in reliability and miscoordination between protection relays, since that causes a direct effect to the short circuit currents. This paper used the school-based optimization (SBO) algorithm, which simulates the educational process, in order to deal with coordination problems. That algorithm is modified (MSBO) by modified both learning and teaching processes. The IEEE 8-bus test system and IEEE 14-bus distribution network are used to validate the proposed coordination system’s effectiveness when dealing with the coordination process between distance and DOCRs, at both the near- and far-end in the typical topological grid and with DGs in working order.

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Section: The Mathematical Modelling Of Coordination Problemmentioning

confidence: 99%

“…So, DOCRs are more expensive than normal OCRs but more effective than OCRs. These relays must be operating in the backup case, with a delay time higher than the primary relay [1].…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

An Adaptive Protection Scheme for Coordination of Distance and Directional Overcurrent Relays in Distribution Systems Based on a Modified School-Based Optimizer

et al. 2021

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“…Various algorithms have been used to solve the DOCR coordination problem like the genetic algorithm [16], teaching-learning based algorithm [17], improved firefly algorithm [18], gray wolf optimizer [19], modified particle swarm optimizer [20], continuous particle swarm optimizer [21], nature-inspired whale optimization [22], new-rooted tree algorithm [23], an adaptive modified firefly algorithm [24], PESA-II [25], new time-currentvoltage characteristics by constrained linear programming [26], gravitational search algorithm [27], hyper spherical search algorithm [28], MILP approach [29], high performance hybrid algorithm [30], cuckoo linear algorithm [31], an enhanced backtracking search algorithm [32], a modified real-coded genetic algorithm [33], an ant-lion optimization [34], modified water-cycle algorithm [35], imperialistic competition algorithm [36], sine-cosine algorithm [37], an enhanced grey wolf optimizer [38], bonobo algorithm [39], political optimization algorithm [40] and many more.…”

Section: Introductionmentioning

confidence: 99%

An Effective Coordination Setting for Directional Overcurrent Relays Using Modified Harris Hawk Optimization

Irfan

Rhee

2021

Electronics

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The relay optimization expresses quite a challenge for smooth and optimal operation of power system networks. The relay optimization is formulated as a mixed integer non-linear problem and is highly constrained. Furthermore, a reliable relaying system must be able to detect and isolate the faulted portion in a timely manner. Therefore, it is necessary to find optimal parameters for relay settings to be able to respond in a timely way to the encountered fault and at the same time keep in consideration the operational and coordination constraints. This paper proposes modified Harris hawk optimization (MHHO), which is based on the intelligent preying tactics of Harris hawks and the improvement of intended modifications, crowding distance and roulette wheel selection. The proposed algorithm has been tested on IEEE 8 and 15-bus systems, using MATLAB programming. The test systems are the distribution networks covering the medium level voltage for consideration. The simulation results verified the success of MHHO to find optimal settings for the relays. For IEEE 8-bus system, MHHO was able to give 35.45% improvement in the results in comparison to other algorithms. Furthermore, for the IEEE 15-bus system, MHHO showed 24.09% improvement on average. The comparison of the results obtained by MHHO with the other state-of-the-art algorithms proved that it is the strong candidate for optimization of the relay coordination problem.

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“…The standard inverse time characteristics of DOCRs in the International Electrotechnical Commission standards are represented by the following equation 25 :…”

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confidence: 99%

Enhancing distribution generator impact mitigation using an adaptive protection scheme based on modified pelican optimization algorithm and active database management system

Abdelhamid,

Kamel,

Zeinoddini‐Meymand

2023

Energy Science & Engineering

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This paper addresses the challenge of protecting electrical networks in the presence of distribution generators (DGs). The use of DGs affects fault currents, leading to miscoordination between protection relays and causing constraints on network reliability. To tackle this issue, the authors propose an adaptive protection scheme (APS) based on a modified pelican optimization algorithm (MPOA) and active database management system (ADBMS). The APS coordinates directional overcurrent relays and distance relays, while the MPOA simulates a pelican mating strategy and includes a modified internal equation. The proposed APS is further upgraded with ADBMS to save system resources by storing relay settings in the database and calling them when the state of DGs changes without running optimization algorithms. The effectiveness of the proposed APS is validated on the Institute of Electrical and Electronics Engineers (IEEE) eight‐bus test system and the IEEE 14‐bus distribution network. Results indicate that the APS can effectively protect electrical networks in the presence of DGs, while the ADBMS upgrade saves system resources.

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Political Optimization Algorithm for Optimal Coordination of Directional Overcurrent Relays

Cited by 10 publications

References 12 publications

An Adaptive Protection Scheme for Coordination of Distance and Directional Overcurrent Relays in Distribution Systems Based on a Modified School-Based Optimizer

An Adaptive Protection Scheme for Coordination of Distance and Directional Overcurrent Relays in Distribution Systems Based on a Modified School-Based Optimizer

An Effective Coordination Setting for Directional Overcurrent Relays Using Modified Harris Hawk Optimization

Enhancing distribution generator impact mitigation using an adaptive protection scheme based on modified pelican optimization algorithm and active database management system

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