Adaptive transmission relaying concepts for improved performance

Rockefeller, G. D.; Wagner, C. F.; Linders, J.R.; Hicks, Kenneth L.; Rizy, D.T.

doi:10.1109/61.193943

Cited by 192 publications

(67 citation statements)

References 5 publications

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“…By utilizing the ratio between the sum of the two terminal voltages of the line and that of the two terminal currents, which is defined as integrated impedance, a novel transmission line pilot protection principle is presented in [25]. The research in [26] extends the work of Rockefeller [27] and proposes an integrated, hierarchical protection system based on distance relays where settings are adapted to ensure optimized performance under widely varying power system operating conditions.…”

Section: Traditional Protective Principlesmentioning

confidence: 98%

Development and research on integrated protection system based on redundant information analysis

Liu

et al. 2016

Prot Control Mod Power Syst

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Facing the growth of energy demand and the worldwide interests in renewable energy sources, smart grid has been proposed in order to accommodate the needs of power grid development. In China, digital substations have been widely applied. Moreover, as the worldwide interest and development in smart grid have increased significantly, the digital information availability and communication capability of modern substation have been improved. Different with traditional substation protection configuration based on local information, Integrated Protection (IP) is used to denote the integration of several protective devices for multiple power equipment within the substation into one protective relay, obtaining all the real time information of the substation by communication network. The analysis of sharing information and cooperation among different protection functions helps to realize more reliable and sensitive fault detection. This paper describes several different integrated protection schemes and their respective advantages and disadvantages. The principles and functions applied in integrated protection systems are addressed to provide an overview of the current state of the technology. A new coordinated protection system based on inter-substation information is proposed and simulation study is discussed to verify the improved reliability and sensitivity.

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Section: Traditional Protective Principlesmentioning

confidence: 98%

Development and research on integrated protection system based on redundant information analysis

Liu

et al. 2016

Prot Control Mod Power Syst

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“…This feature of micro-processor based relays had made it possible to continuously monitor the state of a power system, analyse it in real-time and change the relay settings to as per the prevailing network conditions. In [65,66], an adaptive relaying concepts for protection of transmission lines were discussed in details. In [66,67] software based adaptive relaying implementations for transmission line protection were discussed.…”

Section: Adaptive Relaying Based Methodsmentioning

confidence: 99%

“…In [65,66], an adaptive relaying concepts for protection of transmission lines were discussed in details. In [66,67] software based adaptive relaying implementations for transmission line protection were discussed. Figure 2, shows the various functional elements of adaptive relaying.…”

Section: Adaptive Relaying Based Methodsmentioning

confidence: 99%

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Protection coordination in distribution systems with and without distributed energy resources- a review

Singh

2017

Prot Control Mod Power Syst

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Emission of greenhouse gases and depletion of fossil fuel reserves are two key drivers, which are forcing the mankind to generate the future energy demand from the renewable energy resources. These resources are generally distributed in nature and are directly integrated at distribution levels. Increasing penetration of the distributed energy resources in distribution power networks creates additional operational and control issues. These are mostly regulatory, economical load dispatching, power quality and protection issues. Generally power distribution systems are protected with the help of dedicated over current based protection schemes. But increasing share of distributed energy resources penetration in electric utilities poses a serious threat to the existing protection coordination schemes of the distribution systems. Distributed energy resources connected distribution networks become interconnected in nature and protection coordination schemes, which are designed for unidirectional flow of fault currents become ineffective/non-functional. Therefore, new protection coordination schemes are required for providing the adequate protection coordination for distributed energy resources connected electric power networks. In the available literature, the protection coordination schemes for radial distribution systems and developments in the area of protection coordination are discussed in detail. A thorough review for all these protection coordination schemes for distribution systems with and without distributed energy resources is done in this review article. It includes the analytical and artificial intelligence based techniques application for coordination of protective relays in the distribution systems. The limitations and research gaps in the area of protection coordination schemes are also presented in this review article. The aim of this research paper is to bring all the available research in the area of relay coordination on one platform, so that it will help the emerging researcher to identify the future scope of relay coordination application for distributed energy resources connected distribution systems.

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“…Some approaches based on adaptive relaying were proposed to face such a situation and some fundamental concepts can be found in [3]. Horowitz et al [4] define adaptive relaying as a protection philosophy which permits and seeks to make adjustments to various protection functions in order to make them more attuned to prevailing power system conditions.…”

Section: Iintroductionmentioning

confidence: 99%

Agent technology applied to adaptive relay setting for multi-terminal lines

Coury

Thorp²,

Hopkinson³

et al.

2000 Power Engineering Society Summer Meeting (Cat. No.00CH37134)

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This paper discusses the adaptation of the settings of distance relays for multi-terminal lines employing agents. Agents are software processes capable of searching for information in networks, interacting with pieces of equipment and performing tasks on behalf of their owners (relays). Results illustrating the performance of the adaptive method proposed compared to conventional fixed settings are presented. It is shown that the digital relays and agents acting within a communication structure (also called middleware) can alter adaptive settings to ensure correct performance over a wide variety of operation conditions, without the need of an additional communication link. The proposed relaying scheme can also be utilized for first zone clearing over the entire line.

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Adaptive transmission relaying concepts for improved performance

Cited by 192 publications

References 5 publications

Development and research on integrated protection system based on redundant information analysis

Development and research on integrated protection system based on redundant information analysis

Protection coordination in distribution systems with and without distributed energy resources- a review

Agent technology applied to adaptive relay setting for multi-terminal lines

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