Study on wide-area backup protection system for the smart grid

Lv, Yi; You, Dahai; Wang, Ke; Wang, Liang; Chen, Zhenhai; Huo, Simin

doi:10.1109/drpt.2011.5993892

Cited by 10 publications

(4 citation statements)

References 5 publications

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“…Authors in [31][32][33][34] explained backup protection based on WAMS. A protection algorithm of WAMS-based protection against chain overload trip (PACOLT) is proposed in [33].…”

Section: Backup Schemes Based Wide-area Protectionmentioning

confidence: 99%

Challenges and novel solution for wide‐area protection due to renewable sources integration into smart grid: an extensive review

Eissa

2018

IET Renewable Power Generation

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Wide-area protection and control (WAPAC) is a new technology in the smart grid system. The high penetration of wind farms in power systems is likely to have an adverse impact on the relay operation even if the short-circuit current in such systems decays rapidly due to crowbar resistance. By including various renewable sources, and information and communication technology components, the power grid will become more complex. Approaches based on wide-area monitoring system (WAMS) are developed to solve the current challenges of the future of high renewable resources penetration. This study provides the latest main components of the WAMS architecture and the innovation in WAPAC research development using phasor measurement units (PMUs). As the extensive article review in this area is given that show no solution until now for widearea protection in case of high wind farm penetration. A new wide-area protection based on PMUs is deployed. The main concept is based on describing by differential equations the dynamic operation of the transmission lines. In case of faults, the equations become non-linear and become difficult to be solved. This is the first time to develop such an idea to identify the protected faulted zone and guarantees sustainability for the power flow.

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“…Authors in [31][32][33][34] explained backup protection based on WAMS. A protection algorithm of WAMS-based protection against chain overload trip (PACOLT) is proposed in [33].…”

Section: Backup Schemes Based Wide-area Protectionmentioning

confidence: 99%

Challenges and novel solution for wide‐area protection due to renewable sources integration into smart grid: an extensive review

Eissa

2018

IET Renewable Power Generation

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“…This concept is very robust and voltage transformer can also be added to identify the fault resistance [7]. On the other hand, this protection concept needs transfer of large amount of data between protections and data concentrators [8], and complex software equipment is also needed [9].…”

Section: Introductionmentioning

confidence: 99%

Use of directional overcurrent protection scheme for distributed generation systems

Ehrenberger

2015

2015 16th International Scientific Conference on Electric Power Engineering (EPE)

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This paper proposes protection scheme of distributed generation systems based on adaptive directional overcurrent protections with inverse-time characteristics. First, protection of distributed generation system is compared with classical conception system and individual differences in protection settings are discussed. Proposed protection scheme is composed of individual protections connected by communication lines. These lines inform protections about the present network configuration and in the case of changes in protected system new protection setting is computed. Use of directional overcurrent protections with inverse-time characteristics allows us to create protection settings resistant to small variations in short-circuit currents. This paper describes protection coordination for an example of network configuration. For the correct setting of inverse-time characteristics, and also its validation, short-circuit conditions in every node of network are required, and program SimPoruchy 2.0 [1] was used. Program allows for quick and wellarranged output of short-circuit conditions of network and also for simulation of mentioned protection types.

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“…1. A typical closed-loop distribution system †Based on the over current protection theories [2,3], the protection objective of such a system would be: (1) selectivity: limiting the outage area to be minimal when faults occur, (2) speed: clearing the fault as fast as possible, (3) sensitivity: detecting any prospective fault in its protection zone, and (4) reliability: no maloperation for the faults in the overlap zone.…”

Section: Distribution System With Open/closed-loopsmentioning

confidence: 99%

“…In smart grid, more renewable power can be utilized, higher energy efficiency can be achieved and more advanced IT technologies would be adopted and so forth. The smart grid including the corresponding protection techniques have been widely studying nowadays [3,4]. To be simple and specific, in this paper, only the new protection issues of the distribution systems with open and closed-loop rather than the actual smart grid will be discussed.…”

Section: Introductionmentioning

confidence: 99%

Automatic Protection Schemes for Distribution System with Open and Closed-loop

Guan¹,

Lee²,

Choi³

2013

Journal of Electrical Engineering and Technology

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-Protection issues in distribution systems which are to be operated in open and closed-loop modes in a smart grid are studied and a generalized protection setting method is proposed to meet the new requirements. The developed setting method assumes a conventional over-current protection scheme for the system with reclosers and over-current relays. In a closed-loop mode, it identifies protective devices that have to be sacrificed in order to maximize protection coordination for bidirectional fault current flow. The proposed setting method has been tested on many systems with different complexity and is proved effective.

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Study on wide-area backup protection system for the smart grid

Cited by 10 publications

References 5 publications

Challenges and novel solution for wide‐area protection due to renewable sources integration into smart grid: an extensive review

Challenges and novel solution for wide‐area protection due to renewable sources integration into smart grid: an extensive review

Use of directional overcurrent protection scheme for distributed generation systems

Automatic Protection Schemes for Distribution System with Open and Closed-loop

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