Impact of distributed generation on relay coordination

Walke, Shubhangi B.; Jangle, Nayana N.

doi:10.1109/iccmc.2017.8282592

Cited by 4 publications

(2 citation statements)

References 18 publications

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“…In [113] the limitations for DGs' penetration are suggested to maintain coordination between conventional protection devices. The effect of size and location of DG on the coordination time interval (CTI) margin of inverse time overcurrent relays is analyzed in [114]. The sensitivity of relays in upstream and downstream network at different DGs location and size is also discussed.…”

Section: Methods Of Protection Coordinationmentioning

confidence: 99%

Protection Coordination of Properly Sized and Placed Distributed Generations–Methods, Applications and Future Scope

2018

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The radial distribution networks are designed for unidirectional power flows and are passive in nature. However, with the penetration of Distributed Generation (DG), the power flow becomes bidirectional and the network becomes active. The integration of DGs into distribution network creates many issues with: system stability, protection coordination, power quality, islanding, proper placement and sizing etc. Among these issues, the two most significant are optimal sizing and placement of DGs and their protection coordination in utility network. The proper coordination of relays with high penetration of DGs placed at optimal location increases the availability and reliability of the network during abnormal operating conditions. This research addresses most of the available methods for efficient sizing and placement of DGs in distribution system (numerical, analytical and heuristic) as well as the developed protection coordination techniques for utility networks in the presence of DGs (Artificial Intelligence (AI), adaptive and non-adaptive, multi-agent, hybrid). This paper indicates the possible research gaps and highlights the applications possibilities and methods’ limitations in the area of DGs.

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Section: Methods Of Protection Coordinationmentioning

confidence: 99%

Protection Coordination of Properly Sized and Placed Distributed Generations–Methods, Applications and Future Scope

2018

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Section: Methods Of Protection Coordinationmentioning

confidence: 99%

Protection Coordination of Properly Sized and Placed Distributed Generations–Methods, Applications and Future Scope

Katyara¹,

Staszewski²,

Leonowicz³

2018

Preprint

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The radial distribution networks are designed for unidirectional power flows and are passive in nature. However, with the penetration of Distributed Generation (DG), the power flow becomes bidirectional and the network becomes active. The integration of DGs into distribution network creates many issues with: system stability, protection coordination, power quality, islanding, proper placement and sizing etc. Among these issues, the two most significant are optimal sizing and placement of DGs and their protection coordination in utility network. The proper coordination of relays with high penetration of DGs placed at optimal location increases the availability and reliability of the network during abnormal operating conditions.This research addresses most of the available methods for efficient sizing and placement of DGs in distribution system (numerical, analytical and heuristic) as well as the developed protection coordination techniques for utility networks in the presence of DGs (Artificial Intelligence (AI), adaptive and non-adaptive, multi-agent, hybrid). This paper indicates the possible research gaps and highlights the applications possibilities and methods’ limitations in the area of DGs.

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Coordination of protection and operation in micro-grids with inverter based distributed generation using SAOA

Tanha,

Gandomkar,

Nikoukar

2024

PLoS ONE

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In the proposed protection coordination scheme, the depreciation of the operation time of the entire relay in the primary and backup protection modes for all possible fault locations is considered as the objective function. The limitations of this problem include the equations for calculating the operation time of the relays in both forward and reverse directions, the limitation of the coordination time interval, the limitation of the setting parameters of the proposed relays, the restriction of the size of the reactance that limits the fault current, and the limitation of the standing time of distributed generation per small signal fault. The operation time of the relays depends on the short circuit current passing through them, so it is necessary to calculate the network variables before the fault occurs. For this purpose, optimal daily power distribution should be used in the micro-grid, because micro-grids consist of storage and renewable resources. The proposed plan includes the uncertainties of consumption and generation capacity of renewable resources. Then, to achieve a reliable answer with a low standard deviation, the refrigeration optimization algorithm is used to solve the proposed problem. Finally, the proposed design is implemented on the standard test system in the MATLAB software, and then the capabilities of the proposed design are examined.

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Impact of distributed generation on relay coordination

Cited by 4 publications

References 18 publications

Protection Coordination of Properly Sized and Placed Distributed Generations–Methods, Applications and Future Scope

Protection Coordination of Properly Sized and Placed Distributed Generations–Methods, Applications and Future Scope

Protection Coordination of Properly Sized and Placed Distributed Generations–Methods, Applications and Future Scope

Coordination of protection and operation in micro-grids with inverter based distributed generation using SAOA

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