Differential Power-Based Symmetrical Fault Detection During Power Swing

Rao, J. Ganeswara; Pradhan, Ashok Kumar

doi:10.1109/tpwrd.2012.2196527

Cited by 99 publications

(38 citation statements)

References 13 publications

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“…9(a). This is a critical situation for any fault detection technique [19]. As a result, small asymmetry present in the three phase signals on occurrence of fault.…”

Section: )mentioning

confidence: 99%

“…Such a relay should be able to derive a trip command for a fault during power swing, which is difficult due to large variation in prefault signals [17], [18], [19]. Different techniques are available to identify symmetrical fault during power swing using decaying dc component [17], frequency components of instantaneous three-phase active power [18] and the differential power obtained from voltage and current signals [19]. Multiresolution analysis based on wavelet transform [20] and the derivatives of three-phase active and reactive powers [21] are utilized to detect symmetrical fault during power swing.…”

Section: Introductionmentioning

confidence: 99%

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Accurate Phasor Estimation During Power Swing

Rao

Pradhan

2016

IEEE Trans. Power Delivery

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“…9(a). This is a critical situation for any fault detection technique [19]. As a result, small asymmetry present in the three phase signals on occurrence of fault.…”

Section: )mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Accurate Phasor Estimation During Power Swing

Rao

Pradhan

2016

IEEE Trans. Power Delivery

Self Cite

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“…Methods based on the derivative of the three-phase power, 14 the decaying dc component of the fault current, 15 the power differential technique, 16 and the fast Fourier transform coefficient of the active power 17 are proposed for detection of symmetrical faults. Methods based on advanced signal processing techniques such as S-transform and probabilistic neural network, 18 transient monitor function, 19 phase-space approach, 20 Fisher asymmetry coefficient, 21 and zerofrequency filtering 22 are proposed for fast detection of symmetrical faults.…”

Section: Introductionmentioning

confidence: 99%

An unblocking assistance to distance relays protecting TCSC compensated transmission lines during power swing

Biswas

Nayak

2019

Int Trans Electr Energ Syst

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Summary Modern digital distance relays are incorporated with power swing blocking functions to avoid false operation during power swing. At the same time, it is also crucial to detect a fault correctly and quickly if occurs during power swing for unblocking and allowing the relay to trip the line. Detection of faults in thyristor controlled series capacitor (TCSC) compensated transmission lines during power swing is very challenging due to the nonlinear functioning of the thyristor controlled reactor and the metal‐oxide varistor protecting the series capacitor. This paper proposes a fault detection technique for TCSC compensated transmission lines during power swing using the generalized Teager‐Kaiser energy operator on the instantaneous current signal. The performance evaluation on a wide variety of test data generated on the modified WSCC three‐machine nine‐bus system and the modified IEEE 39‐bus New England system through EMTDC/PSCAD justify the efficacy of the proposed method.

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“…Power swing, voltage instability, and load encroachment are addressed individually by various techniques in the literature . However, the inability of the relay in identifying even one of them can result in catastrophic outages resulting in blackout.…”

Section: Introductionmentioning

confidence: 99%

Third zone protection to discriminate symmetrical fault and stressed system conditions

Venkatanagaraju

Jose

Biswal

et al. 2019

Int Trans Electr Energ Syst

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Summary Disastrous effects resulting from power system security issues have been pointed out in various blackout reports. In these reports, setting of the third zone reach being large was found to be a major reason. In addition to a fault, the apparent impedance measured by the relay can also enter the third‐zone setting for different stressed events, such as load encroachment, power swing, and voltage instability, and thus be misinterpreted as a three‐phase fault, leading to relay maloperation. To improve the functionality of the relay under such dire situations, a local end information‐based technique is proposed. The scheme uses the Teager energy‐based approach for developing an index criterion. As per the proposed method, after the entry of the impedance into the relay zone‐3 characteristic, the index is checked. If both the impedance and the index cross their respective thresholds, the disturbance event will be detected as a fault. Otherwise, it will be a no‐fault condition and undesired relay operation avoided. Reliability of the proposed technique is tested for various power system events by simulation on the New England 39‐bus, 10 machine test system.

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Differential Power-Based Symmetrical Fault Detection During Power Swing

Cited by 99 publications

References 13 publications

Accurate Phasor Estimation During Power Swing

Accurate Phasor Estimation During Power Swing

An unblocking assistance to distance relays protecting TCSC compensated transmission lines during power swing

Third zone protection to discriminate symmetrical fault and stressed system conditions

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