Do system impedances really affect power swings &amp;#x2014; Applying power swing protection elements without complex system studies

Fischer, Normann; Benmouyal, G.; Hou, D.; Tziouvaras, D.A.; Byrne-Finley, John; Smyth, Brian

doi:10.1109/cpre.2012.6201225

Cited by 36 publications

(6 citation statements)

References 1 publication

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“…Since, during PS, the impedance path entered into the relay zones is approximately perpendicular to the line impedance, blinders are placed in parallel with the line impedance (Figure 6) [16]. Blinders methods perform much better than impedance methods [37][38][39][40][41]. The method of double blender is very similar to the impedance changes approach, with the difference that in the impedance method, an external zone is used to detect PS, however, in the blinder method two parallel blinders are used.…”

Section: Double Blinder Methodsmentioning

confidence: 99%

An overview of power swing detection methods in distance relays and the factors involved

Taheri

Hosseini

Salehimehr

2022

IET Generation Trans & Dist

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Nowadays, due to the simplicity of operation and proper coordination characteristics, distance relays are being extensively used in the protection of power transmission lines. Despite many advantages, the distance relay is exposed to a maloperation when a power swing phenomenon occurs. Power swings may occur due to major disturbances, such as switching lines, generator interruptions, and connecting or disconnecting a large part of the loads, causing outages in healthy lines. Detecting power swing and preventing distance relay maloperation has always been a challenge. In addition, different parameters can have a great impact on the performance of power swing detection methods. In this paper, these parameters and their effects are examined along with various methods for detecting power swings. Accordingly, this comprehensive review covers all aspects of power swing phenomenon and its detection, including causes of power swings, power swing detection methods, determining threshold values in power swing methods, effecting of compensated lines and wind farms in power swing detection methods, and testing power swing function in the distance relays. It is hoped that this study will be helpful for researchers in power system protection to find relevant references and develop new methods for power swing function.

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Section: Double Blinder Methodsmentioning

confidence: 99%

An overview of power swing detection methods in distance relays and the factors involved

Taheri

Hosseini

Salehimehr

2022

IET Generation Trans & Dist

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“…As stated earlier, oscillating voltage and current waveforms are observed along with oscillating impedance as function of time shown in Figure 1.2, 1.3 and 1.4 respectively. [4] Thus by measuring rate at which impedance varies, power swing can be detected [2]. Once the rate goes beyond a certain threshold, blocking signal can be issued by the relay.…”

Section: Conventional Methodsmentioning

confidence: 99%

Modern Techniques for Power Swing Detection and Classification - A Review

Khond¹,

Barhate²,

S.B³

2020

helix

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Power swing is a transient event in the power system that is incepted by various phenomenons such as sudden loss or sudden addition of load, tripping of line due to faults etc. The conventional Distance relays are set to operate for faults may mal-operate during Power swings which lead to transient instability of the system along with low post fault power transfer capability of the system. To avoid this, a fast acting Power swing detection is required that would issue appropriate tripping signals to the breaker so that post fault power transfer capability is optimized. This paper aims to present modern techniques that reliably and efficiently detect power swing and classify the same into fast or slow and stable or unstable class to avoid false tripping of breakers and ensure maximum post fault power transfer.

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“…The proposed methods in [5,9] have difficulty in detecting three-phase faults that occur during a slow PS and keep the relay blocked. Likewise, the methods proposed in [40,41] are not effective in detecting three-phase faults during PSs.…”

Section: Performance For Three-phase Fault During Psmentioning

confidence: 99%

Power swing detection and blocking of the third zone of distance relays by the combined use of empirical‐mode decomposition and Hilbert transform

Taheri

Hosseini

Abyaneh

et al. 2020

IET Generation, Transmission & Distribution

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Do system impedances really affect power swings — Applying power swing protection elements without complex system studies

Cited by 36 publications

References 1 publication

An overview of power swing detection methods in distance relays and the factors involved

An overview of power swing detection methods in distance relays and the factors involved

Modern Techniques for Power Swing Detection and Classification - A Review

Power swing detection and blocking of the third zone of distance relays by the combined use of empirical‐mode decomposition and Hilbert transform

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