Adaptive coordination of overcurrent relays in active distribution networks based on independent change of relays’ setting groups

Samadi, Arash; Chabanloo, Reza Mohammadi

doi:10.1016/j.ijepes.2020.106026

Cited by 56 publications

(37 citation statements)

References 19 publications

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“…Especially, group 3 considers the inclusion of CNTs, as illustrated in Fig. 1 [16]- [18]. Calculation of the setting values in these studies is divided into three steps.…”

Section: Existing Adaptive Protection Methodsmentioning

confidence: 99%

“…These are considered contingencies (source and line disconnection) in [16], and on/off of DG and switching operations during the normal state in [17], [18]. Second, the topologies to be allocated to the SGs are determined by the clustering technique [16], GA [17], or ILP [18], and then the settings of each group that satisfy the protection coordination of the allocated topologies are calculated through LP [16], [17] or PSO [18]. Finally, the setting values are evaluated based on a specific purpose.…”

Section: Existing Adaptive Protection Methodsmentioning

confidence: 99%

“…Finally, the setting values are evaluated based on a specific purpose. The weighted sum of TDS in [16], average operation time in [17], and the total sum of operation time in [18] are used, respectively. This paper deals with reconfiguration of a distribution network according to the switching operation in the normal state.…”

Section: Existing Adaptive Protection Methodsmentioning

confidence: 99%

“…In addition, they determined the setting values using an objective function (OF) to minimize the average operation time of each topology with respect to the number of SGs [17]. Samadi et al defined the matrix of operation time for all SGs, and used it to calculate the optimal solution of TDS for each SG through particle swarm optimization (PSO) [18]. SG allocation of all expected topologies was performed using integer linear programming (ILP).…”

Section: Introductionmentioning

confidence: 99%

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Adaptive Protection Method of Distribution Networks Using the Sensitivity Analysis for Changed Network Topologies Based on Base Network Topology

et al. 2020

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This paper proposes an adaptive protection method using sensitivity analysis that examines the effect of changed network topologies (CNTs) on the operation time of protective devices (PDs) for a base network topology (BNT) in a distribution network. In this study, BNT refers to the topological structure of the distribution network maintained over the long-term, whereas CNT is the changed structure maintained for a relatively short term for field workings, fault restoration, or real-time reconfiguration. The main purpose is to consider the PD's operating speed and the number of controls for changing the settings and to calculate the optimal setting values for two terms while including the CNT in the BNT over a long duration. For this purpose, we used two approaches: First, a sensitivity index, defined as the increase in the operation time of the PD for the BNT when each CNT is included in the BNT, is used to determine the CNT's inclusion priority. Second, an objective function (OF) is used to evaluate the maximum acceptable number of CNTs based on the priorities derived from the sensitivity analysis. This OF aims to minimize the weighted sum of the average operation time and the number of setting changes for the PDs. Case studies on the test systems were conducted, and the effectiveness of the proposed method was verified by comparing it with existing adaptive protection methods.INDEX TERMS Adaptive protection, base network topology (BNT), changed network topology (CNT), distribution network, protection coordination.

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“…Especially, group 3 considers the inclusion of CNTs, as illustrated in Fig. 1 [16]- [18]. Calculation of the setting values in these studies is divided into three steps.…”

Section: Existing Adaptive Protection Methodsmentioning

confidence: 99%

Section: Existing Adaptive Protection Methodsmentioning

confidence: 99%

Section: Existing Adaptive Protection Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Adaptive Protection Method of Distribution Networks Using the Sensitivity Analysis for Changed Network Topologies Based on Base Network Topology

et al. 2020

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“…Hybrid heuristics and mathematical algorithms such as hybrid BBO and LP [23], hybrid GA and LP [27], hybrid PSO and LP [28], hybrid GA and non‐linear programming [29], hybrid gravitational search algorithm and sequential quadratic programming [30], hybrid cuckoo optimisation algorithm and LP [31], a combination of Rosen's gradient projection–complex method with GA–PSO algorithm [32] and hybrid simulated annealing and LP [33] are proposed to solve the DOCRs coordination problem. In [34], a hybrid PSO and integer linear programming is proposed to obtain optimal settings of DOCRs and the proper setting group to activate each relay in each network state.…”

Section: Introductionmentioning

confidence: 99%

Hybrid VNS–LP algorithm for online optimal coordination of directional overcurrent relays

Damchi

Dolatabadi

2020

IET Generation, Transmission & Distribution

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Multi-characteristic overcurrent relay of feeder protection for minimum tripping times and self-protection

et al. 2022

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The main goal of this study is to propose new characteristics to an REF 615 model (overcurrent and earth fault relay) that is used for feeder protection in an actual radial system of an Egyptian Substation. When studying fault current, both light and heavy loads as well as fault locations are considered based on the radial nature of the network. The proposed algorithm relies on simultaneously activating the three settings of REF 615 OC relay, with the three settings being set on the respective normal inverse (NI), very inverse (VI) and definite time (DMT) curves. The relay’s operating area is divided into two areas. The VI curve functions as a backup for NI in the first area, whereas the NI curve functions as a backup for VI in the second area. The novelty of this study is the proposed model’s ability to handle relay failure through its self-protection, which increases the network’s protection level and minimizes the relay operating time by about 41.07% for rapid response to a fault. The presence of self-backup protection can minimize the coordination time interval between the main protection and backup protection (CTI) by about 77.98%. The ETAP software is used to investigate the actual radial system and in the analysis of the protection coordination.

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Adaptive coordination of overcurrent relays in active distribution networks based on independent change of relays’ setting groups

Cited by 56 publications

References 19 publications

Adaptive Protection Method of Distribution Networks Using the Sensitivity Analysis for Changed Network Topologies Based on Base Network Topology

Adaptive Protection Method of Distribution Networks Using the Sensitivity Analysis for Changed Network Topologies Based on Base Network Topology

Hybrid VNS–LP algorithm for online optimal coordination of directional overcurrent relays

Multi-characteristic overcurrent relay of feeder protection for minimum tripping times and self-protection

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