Setting-free method for detection of asymmetrical faults during power swings

Mahamedi, Behnam; Fletcher, John

doi:10.1016/j.epsr.2019.106177

Cited by 11 publications

(5 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For a two bus equivalent power system during power swing, the voltage and current signals from both end sources contain two different frequency components [25], [32]. Thus the signals obtained by the relay can be modeled as,…”

Section: Proposed Methodsmentioning

confidence: 99%

Accurate Superimposed Component Estimation for Improved Relay Performance During Power Swing

Paladhi

Pradhan

Rao³

2022

IEEE Systems Journal

View full text Add to dashboard Cite

There is continuous variation in amplitude, phase, and frequency of voltage and current signals during power swing in a power system. Such variation makes the memorized pre-fault data less accurate to be used as non-fault component while computing superimposed quantity for protection decisions during power swing. In this paper, the voltage and current signal characteristics during power swing are analyzed and a technique is proposed to obtain correct non-fault components for superimposed quantity computation. The accuracy of the method in estimating the non-fault components is observed for different power swing conditions simulated in a 39-bus New England system and field data. The relay performance improvement as observed is also provided while applying the method to directional relaying, fault type classification, and fault location applications for faults during power swing. Comparative assessment reveals the superiority of the proposed method in improving the accuracy of the superimposed components computed during power swing.

show abstract

Section: Proposed Methodsmentioning

confidence: 99%

Accurate Superimposed Component Estimation for Improved Relay Performance During Power Swing

Paladhi

Pradhan

Rao³

2022

IEEE Systems Journal

View full text Add to dashboard Cite

show abstract

“…However, under the same experimental conditions, the latest proposed methods in Literature [6] , [20] cannot work effectively. The new scheme owns obvious advantages on detecting symmetric faults in OOSO process, especially at

.…”

Section: Simulation and Verificationmentioning

confidence: 99%

Fault detection during power system out-of-step oscillation using frequency difference sudden-change of voltage and current at a single terminal bus and a novel setting-free distance protection unlocking scheme

Zhang¹

2023

Heliyon

View full text Add to dashboard Cite

“…is method may operate inaccurately during a stable power swing and just performs well for the symmetrical fault [12]. In [13], a negative-sequence current-based technique has been proposed for detecting all types of faults during the power swing in a series-compensated line.…”

Section: Introductionmentioning

confidence: 99%

Power Swing and Fault Detection in the Presence of Wind Farms Using Generator Speed Zero-Crossing Moment

Damchi

Eivazi

2022

International Transactions on Electrical Energy Systems

View full text Add to dashboard Cite

Nowadays, due to the entry of wind power plants into the power systems, which causes changes in the network parameters, power swing detection has become more important. Changes in the wind speed and noncontinuity of the wind power plants lead to changes in the power swing characteristic. Therefore, the impedance seen by the distance relay is changed, and so the maloperation of the relay during the stable power swing may occur. This paper proposes a new method to detect power fluctuations based on the synchronous generator speed while it is independent of the network parameters. Based on the proposed method, the generator speed at any moment does not pass through zero during the stable power swing. In contrast, it passes through zero by occurring fault types with high and low fault resistance, fault types during power swing, and an unstable power swing. Therefore, the method prevents maloperation of distance protection. It is worth noting that the proposed method is applicable for distance protection in any power system with and without wind power plants, such as in the distance protection of compensated transmission lines. The obtained results indicate that the proposed method detects power fluctuations in a short time.

show abstract

Setting-free method for detection of asymmetrical faults during power swings

Cited by 11 publications

References 20 publications

Accurate Superimposed Component Estimation for Improved Relay Performance During Power Swing

Accurate Superimposed Component Estimation for Improved Relay Performance During Power Swing

Fault detection during power system out-of-step oscillation using frequency difference sudden-change of voltage and current at a single terminal bus and a novel setting-free distance protection unlocking scheme

Power Swing and Fault Detection in the Presence of Wind Farms Using Generator Speed Zero-Crossing Moment

Contact Info

Product

Resources

About