Research on design and implementation of relay protection in smart grid

Li, Wei; Qi, Yanfeng; Qi, Hongxu

doi:10.1109/ccdc.2018.8407353

Cited by 8 publications

(6 citation statements)

References 4 publications

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“…In [8], many analyses about protection devices, including distribution generation, are studied with control methodologies to change power flow in protection operation and reconfiguration schemes. In [9], some relay protection strategies are also examined, and the traditional relay protection tuning technology is incorporated in the proposed approach, aiming for widearea protection. Additionally, in [10], an adaptive instantaneous overcurrent protection scheme is proposed, which sets parameters of IEDs using a real-time Thevenin equivalent circuit.…”

Section: Overview Of the Smart Grid Strategiesmentioning

confidence: 99%

Integrating Smart Grid Devices into the Traditional Protection of Distribution Networks

et al. 2022

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Smart grids are a reality in distribution systems. They have assisted in the operation, control, and most of all, the protection of urban networks, significantly solving the contingencies of these networks. This paper treats the initial stage of implementing smart grid switching devices in distribution networks. In this stage, smart grid technologies need to operate with the traditional protection elements (such as fuses, reclosers, and sectionalizers). This fact can create trouble in the protection schemes because there are two distinctive philosophies. In some companies, especially those without substantial capital, these two protection philosophies can run together for many years. The most popular intelligent electronic devices (IEDs) available in the market are studied to verify their features and the possibility to incorporate techniques to allow the two philosophies to work together. After that, the proposed approach shows how the existing IEDs can interact with the traditional devices. Special functions can also be incorporated to inform the control center of an operational problem, increasing the observability of the network. With the proposed approach, the IEDs are transformed into intelligent agents. Practical examples using real distribution systems are presented and discussed, proving the efficacy of the proposed methodology.

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Section: Overview Of the Smart Grid Strategiesmentioning

confidence: 99%

Integrating Smart Grid Devices into the Traditional Protection of Distribution Networks

et al. 2022

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“…In [8] the distributed smart grid terminal uses a novel data privacy protection algorithm. Furthermore, [9] clari es the important signi cance of relays in smart grid. In [10] a new type of protection has been presented which is dependent on the Busbar Area Protection (BAP) zone.…”

Section: Introductionmentioning

confidence: 97%

“…Smart protection can be achieved by using a relay. Smart protection systems have been presented in a lot of papers [1][2][3][4][5][6][7][8][9][10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Adaptive Electronic Relay for Smart Grid Based on Self-healing Protection

Nasrallah,

Hussein,

Ismeil

2023

Preprint

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The protection system plays a key role in maintaining the stability of the network, as well as preserving the basic components of the electrical network, such as generators, transformers, transmission systems, and electrical power connections. The smart grid system makes the power system more flexible and complex. So the detection of the fault and isolation it fastly is the main issue of the protection system. In this paper, an optimum solution for the protection has been presented. where an adaptive electronic relay for more reliability and self-healing has been presented. The algorithm of the relay operation has been validated based on the MATLAB software SIMULINK. Results validate the effectiveness of the proposed smart electronic relay at various sections of the smart grid system such as generator, transformer, transmission and distribution line, and load.

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“…However, there is no technology and device to monitor the aging state of relay during operation. Existing technologies and devices for evaluating the aging state of relay all need to remove the relay from the operation loop for testing, which has major pain points and defects such as inconvenient implementation on site and inability to monitor online [12][13][14].…”

Section: Introductionmentioning

confidence: 99%

R&D of Relay Aging State Monitoring Device Based on Electromagnetic Signal

Zhang

Shi

Tang

et al. 2022

J. Phys.: Conf. Ser.

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Relays are the key components in the operation of nuclear power plants. There are many kinds, large quantity and high failure rate of relays in nuclear power plants, which are the difficulties in on-site maintenance and equipment management. There is no effective method and equipment to judge the aging state of relays on site, so only passive maintenance and replacement strategy can be adopted. The device developed in this paper uses space electromagnetic wave detection technology to monitor the aging status of relay on line, which provides a new way for the aging status evaluation and failure diagnosis of relay in service. The preliminary test results also show that the device has the potential to solve the key technology of relay maintenance activities in nuclear power field and realize relay aging management and predictive maintenance.

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Research on design and implementation of relay protection in smart grid

Cited by 8 publications

References 4 publications

Integrating Smart Grid Devices into the Traditional Protection of Distribution Networks

Integrating Smart Grid Devices into the Traditional Protection of Distribution Networks

Adaptive Electronic Relay for Smart Grid Based on Self-healing Protection

R&D of Relay Aging State Monitoring Device Based on Electromagnetic Signal

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