A comparative assessment of power swing detection techniques

Nayak, Paresh Kumar; Rao, J. Ganeswara; Kundu, Pranab Kumar; Pradhan, Ashok Kumar; Bajpai, Prabodh

doi:10.1109/pedes.2010.5712568

Cited by 30 publications

(19 citation statements)

References 4 publications

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“…Through experiment, it was found that the resistance element of measured impedance seems to show continuous changes during power swing [10,30]. As for fault, the resistance element changes drastically only during the inception of fault and remains the same during the fault period.…”

Section: Decreased Resistance Methodsmentioning

confidence: 96%

“…Power system faults, line switching, generator disconnection, and the loss or application of large blocks of load causes fluctuations in electrical power although the mechanical power remains relatively constant in a generator [1,[9][10][11][12][13]. When one of these disturbances occurs, it will cause changes in the electrical power parameters as in following equation.…”

Section: Causes Of Power Swingmentioning

confidence: 99%

“…If the travel of impedance crosses the outer and inner concentric circles before the set time (K), the scheme sees it as a fault. If the impedance crosses the concentric circles for period longer than set time (K), then the scheme sees it as power swing and the relay will be blocked from tripping [10,28,30].…”

Section: Concentric Characteristicsmentioning

confidence: 99%

“…However, it was found that this scheme is unable to detect fast swing (45 Hz) due to the fact that the impedance travels very fast across the different zones [10,27,28,[30][31][32]. Zadeh [30] simulated a power swing event and proved that this scheme is unable to detect fast swing.…”

Section: Concentric Characteristicsmentioning

confidence: 99%

“…Zadeh [30] simulated a power swing event and proved that this scheme is unable to detect fast swing. From the experiment, Nayak et.al in [10], concluded that the scheme was also unable to detect fast swing during single line to ground fault [10,28].…”

Section: Concentric Characteristicsmentioning

confidence: 99%

See 4 more Smart Citations

Progress on power swing blocking schemes and the impact of renewable energy on power swing characteristics: A review

Gunasegaran

Tan

Bakar

et al. 2015

Renewable and Sustainable Energy Reviews

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Section: Decreased Resistance Methodsmentioning

confidence: 96%

Section: Causes Of Power Swingmentioning

confidence: 99%

Section: Concentric Characteristicsmentioning

confidence: 99%

Section: Concentric Characteristicsmentioning

confidence: 99%

Section: Concentric Characteristicsmentioning

confidence: 99%

See 3 more Smart Citations

Progress on power swing blocking schemes and the impact of renewable energy on power swing characteristics: A review

Gunasegaran

Tan

Bakar

et al. 2015

Renewable and Sustainable Energy Reviews

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Distance protection blocking and re-opening scheme in multi-machine power system oscillation scenes

Kang

et al. 2018

Int Trans Electr Energ Syst

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In view of frequent multi-machine power system oscillations in power grid which may cause traditional oscillation blocking and re-opening schemes to be completely invalid, a distance protection oscillation blocking and re-opening scheme in multi-machine power system oscillation scenes is proposed in this paper. First, the ride-through trajectory of measured impedance in multimachine power system oscillation cases and its effect on the operation characteristic of distance protection is analyzed, and the oscillation blocking scheme is formed by combining the operation status information of protection components on 2 line ends. And then, in the oscillation blocking duration, by calculating the estimated error of the dynamic phasor of measured current at the relaying point, the protection re-opening scheme for symmetrical fault during oscillation is established. Finally, simulation tests on PSCAD in 3-machine system and IEEE 39-bus system verify that the proposed scheme could reliably block the protection when oscillation occurs in multi-machine power system, and re-open the protection accurately and reliably when symmetrical fault occurs during oscillation. KEYWORDS distance protection, dynamic phasor, multi-machine power system oscillation, oscillation blocking 1 | INTRODUCTION When power system is disturbed by factors such as transmission line fault and heavy-load line switch on/off, etc., oscillation will easily result. 1 The incorrect operation of distance protection on transmission line which identifies whether fault occurs by calculating the measured impedance during oscillation will enlarge the influence range of oscillation, greatly endangering the safe and stable operation of power system. 2 In regional inter-connected power grid that is becoming ever more complicated, the probability of multi-machine power system oscillation is also increasing rapidly, 3 in which case the oscillation center may move dynamically along different routes, causing traditional double-source analysis model to be invalid. 4,5 Therefore, it is urgent to study in depth the effect of multi-machine power system oscillation on existing protection policy and put forward effective oscillation blocking and protection re-opening scheme.Currently, research on oscillation blocking is mostly based on 2-generator model and is mainly focused on the following aspects. First, identification criteria based on swing center voltage (SCV) could realize re-opening for symmetrical fault during oscillation, with certain time delay. 6,7 Second, identification criteria based on the compensation principle could determine whether it is oscillation or short circuit fault that occurs within the protection range, but it is difficult to set the compensation value when the line is heavily loaded. 8,9 Third, identification criteria based on the apparent

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A Mixed Strategy Approach for Fault Detection During Power Swing in Transmission Lines

Prasad

Nayak

2018

Advances in Intelligent Systems and Computing

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A comparative assessment of power swing detection techniques

Cited by 30 publications

References 4 publications

Progress on power swing blocking schemes and the impact of renewable energy on power swing characteristics: A review

Progress on power swing blocking schemes and the impact of renewable energy on power swing characteristics: A review

Distance protection blocking and re-opening scheme in multi-machine power system oscillation scenes

A Mixed Strategy Approach for Fault Detection During Power Swing in Transmission Lines

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