Digital protective relaying algorithm sensitivity study and evaluation

Kezunovic, Mladen; Kreso, Sead; Cain, James T.; Peruničić, B.

doi:10.1109/61.193868

Cited by 22 publications

(4 citation statements)

References 11 publications

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“…The correct trip probability of relay R 1 can then be derived by multiplying it to the probability in (5) and integrating it over the whole line range as:…”

Section: Evaluation Of the Correct Trip Probabilitymentioning

confidence: 99%

“…Three facets of protection, namely, security, dependability and availability, define performance indicators [1], [2]. A reliability index, based on statistical data of relay operations, has been proposed in [3] and [4], while the parameter sensitivity of the protective relaying algorithms has been studied, based on experimental data in [5]. Due to a lack of relay information, however, the proposed reliability index has been evaluated in a combined manner, which cannot be used to pinpoint the causes of malfunctions.…”

Section: Introductionmentioning

confidence: 99%

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A Probabilistic Approach to the Protection Capability Evaluation of Distance Relay in Transmission Systems

Zhang¹,

Lee²,

Choi³

2010

Journal of Electrical Engineering and Technology

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-This paper proposes a probability measure for the evaluation of relay performance from two aspects, namely, correct trip and no-unwanted trip. They are developed based on the relationship between relay settings and relay measurements, which follow a Gaussian probability model. The proposed method based on strict mathematical derivation is applied to protection capability evaluation of distance relays under various settings. Considering the specific attributes of each protection zone, the optimal settings are also determined accordingly. The protection capability could demonstrate clearly the relay performance under various settings and the optimal settings could provide good references for engineering applications.

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“…The correct trip probability of relay R 1 can then be derived by multiplying it to the probability in (5) and integrating it over the whole line range as:…”

Section: Evaluation Of the Correct Trip Probabilitymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A Probabilistic Approach to the Protection Capability Evaluation of Distance Relay in Transmission Systems

Zhang¹,

Lee²,

Choi³

2010

Journal of Electrical Engineering and Technology

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“…where: is a considered number of post-fault samples, is the ideal (accurate) time response, is a sample number as explained below. The index (3) is computed in the window of samples starting from the th sample [5]. The value of should be selected to reflect the fact that some relaying algorithms use transient monitors to postpone tripping.…”

Section: A Evaluating the Time Responsementioning

confidence: 99%

Design optimization and performance evaluation of the relaying algorithms, relays and protective systems using advanced testing tools

Kezunovic

Kasztenny

2000

IEEE Trans. Power Delivery

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This paper defines underlying performance quality measures for designing, optimizing, setting and evaluating the protective relaying algorithms and equipment. The paper starts with evaluation of digital measuring algorithms, and gradually introduces the performance indices for the operating principles, relays and protection systems. Multi-objective formal ranking methods based on fuzzy set theory are used to combine diverse measures into composite performance indices enabling evaluating and optimizing various functions of protective equipment.

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“…There have been several interesting works on the evaluation of the performance or ability of a protective device [1][2][3][4]. For example, stochastic approaches for the evaluation of the digital protective devices were suggested along with fuzzy logics to measure the performances of the protective devices, all of which are focused not on a system but on a device level.…”

Section: Introductionmentioning

confidence: 99%

A Novel Protective Effectiveness Evaluation Method Based on a Parametric Point of View for Distribution Systems

Moon

Hyun

Lee

2005

KEM

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This paper suggests a protective effectiveness index as a performance index for the optimal or adaptive protection of a power distribution system. The setting rules are considered as a performance measure of every parameter and used as a primary evaluation element. The rules are categorized into three groups for the hierarchical evaluation. After all the parameters are evaluated, the device-wise, coordination-wise and system-wise protective effectivenesses are calculated, in turn. The proposed method is applied to a typical distribution network to show its effectiveness.

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Digital protective relaying algorithm sensitivity study and evaluation

Cited by 22 publications

References 11 publications

A Probabilistic Approach to the Protection Capability Evaluation of Distance Relay in Transmission Systems

A Probabilistic Approach to the Protection Capability Evaluation of Distance Relay in Transmission Systems

Design optimization and performance evaluation of the relaying algorithms, relays and protective systems using advanced testing tools

A Novel Protective Effectiveness Evaluation Method Based on a Parametric Point of View for Distribution Systems

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