Integrated feeder protection

Aksamovic, Abdulah; Pasic, Z.; Imamovic, F.

doi:10.1109/melcon.2004.1348200

Cited by 2 publications

(2 citation statements)

References 1 publication

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“…For typical radial power distribution systems, conventional feeder protections were designed based on the radial flow and level of feeder short-circuit currents [9,14,15]. However, the connections of DGs on the feeders can considerably alter the flow of currents in various sections of the feeders during a fault, as well as increase the level of fault current.…”

Section: Study Of Dg Impacts On Feeder Protectionsmentioning

confidence: 99%

Network-integrated adaptive protection for feeders with distributed generations

Cheung

Hamlyn

Wang

et al. 2008

2008 IEEE Power and Energy Society General Meeting - Conversion and Delivery of Electrical Energy in the 21st Century

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Connections of distributed generations (DGs)powered by renewable energy resources on power systems start to show benefits but cause new concerns in system operations such as challenges in feeder protections. This paper proposes a new strategy for network-integrated adaptive protection and control of distribution feeders connected with DGs. The proposed strategy provides intelligent network-enabled protections for DGconnected feeders and overcomes DGs-imposed protection challenges such as increase of fault levels, change of prescribed fault flow paths, mis-coordinated tripping, unintentional islanding operations, non-interruptible fault currents, etc., and nonDG-caused problems such as undetected high-impedance ground faults. This paper presents a new architecture for monitoring / protecting network of multiple (over-hundred) feeder nodes. This architecture consists of four layers: backbone network, area domains, local domains, and cell units. The architecture is fault tolerant and has features from the classical star and ring architectures. The design, implementation, case studies, and field tests validation for the proposed networkintegrated adaptive feeder protection are provided.

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Section: Study Of Dg Impacts On Feeder Protectionsmentioning

confidence: 99%

Network-integrated adaptive protection for feeders with distributed generations

Cheung

Hamlyn

Wang

et al. 2008

2008 IEEE Power and Energy Society General Meeting - Conversion and Delivery of Electrical Energy in the 21st Century

View full text Add to dashboard Cite

show abstract

“…Protection technology has been developing continuously for over a hundred years. Numerous valuable and practical protection schemes were developed and are being used in daily operations [1][2][3][4][5][6][7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

New simple formulations and validations for digital implementation of pilot protective relaying schemes

Cheung

Hamlyn

Lin

et al. 2009

2009 IEEE Power &Amp; Energy Society General Meeting

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This paper presents new simple formulations for digital implementation of pilot protective relaying schemes. Pilot relaying systems use a communication channel to deliver information from a local relay terminal to a remote relay terminal. The pilot relaying allows high-speed tripping for faults occurring on its designated protected line that improves the reliability of protective relaying for transmission lines. This paper presents new formulations for typical pilot protective relaying schemes, including Directional Comparison Blocking (DCB), underreaching direct transfer trip (DTT), permissive overreaching transfer trip (POTT), and permissive underreaching transfer trip (PUTT). The main feature of these new formulations is focused on facilitating simple and robust digital implementation for live, operating transmission line protection. Validations of these new formulations are presented in the paper.

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Integrated feeder protection

Cited by 2 publications

References 1 publication

Network-integrated adaptive protection for feeders with distributed generations

Network-integrated adaptive protection for feeders with distributed generations

New simple formulations and validations for digital implementation of pilot protective relaying schemes

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