SVM based power swing identification scheme for distance relays

Seethalekshmi, K.; Singh, S. N.; Srivastava, Suresh C.

doi:10.1109/pes.2010.5588164

Cited by 32 publications

(13 citation statements)

References 13 publications

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“…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%

“…Support vector machine (SVM) is a new solution for separating functions in classification tasks such as pattern recognition [11]. As mentioned in [11,64,65], SVM has been known as a very potential tool in solving the classification problems.…”

Section: Support Vector Machinementioning

confidence: 99%

“…As mentioned in [11,64,65], SVM has been known as a very potential tool in solving the classification problems. Being introduced by Vapnik [65] from the Statistical Learning Theory (SLT), it is found that SVM performs better than Artificial Neural Networks (ANN) because, SVM's essence follows on Structural Risk Minimization (SRM) while ANN is based on the Empirical Risk Minimization (ERM) [11,12,19,64,66]. The typical steps for SVM comprised of extracting the input features, and training the SVM classifier.…”

Section: Support Vector Machinementioning

confidence: 99%

“…Seethalekshmi et.al [11] proposed another scheme using two separate logic blocks for the summation of AND gate in relay in order to distinguish between power swing and fault using SVM based classifier. The input features are positive sequence magnitude and angle of voltage, positive sequence magnitude of the current, real power, and reactive power.…”

Section: Support Vector Machinementioning

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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Section: Causes Of Power Swingmentioning

confidence: 99%

Section: Support Vector Machinementioning

confidence: 99%

Section: Support Vector Machinementioning

confidence: 99%

Section: Support Vector Machinementioning

confidence: 99%

See 2 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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“…It is often caused by transmission line faults, loss of generator units, or switching heavy loaded transmission lines [1,[4][5][6]. Above all, the understanding for power swing has to be seen from the fundamental point of view of generator.…”

Section: Power Swing Phenomenonmentioning

confidence: 99%

Investigation of power swing phenomenon and verification of critical clearing time through theoretical calculations and simulated studies

Gunasegaran

Tan

Bakar

2014

3rd IET International Conference on Clean Energy and Technology (CEAT) 2014

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Power swing or transient stability commonly pose serious threat to the power system reliability. As such, the equal area criterion is used to identify the critical clearing time. However, the equal area criterion neglected the resistance in the power system and only considered pure reactance in the theoretical calculations. As a result, this paper will consider both the resistance and reactance present in the power system, in order to achieve a realistic transient stability study. A comparison in critical clearing time between the theoretical calculation and realistic simulation were conducted in this paper. It was found that neglecting the resistance in the theoretical assumptions will produce a conservative estimates for the critical clearing time. It was further demonstrated that a realistic power system with resistances can actually withstand a longer critical clearing time before the generator experiences out of step condition. In addition, this paper will also present the co-relation between the active power and rotor angle during a power swing event.

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Detection of three-phase fault during power swing using zero frequency filtering

Prabhu

Nayak

Pradhan

2018

Int Trans Electr Energ Syst

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Summary Distance relay is susceptible to maloperation during power swing. Power swing blocking function is integrated in distance relays to ensure security during power swing. However, if a fault occurs during power swing, it must be detected and cleared by the relay as quickly as possible. Since power swings and three‐phase faults are both balanced phenomena, discriminating them is very challenging. This paper proposes a method to detect three‐phase fault during power swing by computing the Hilbert envelope of the current waveform followed by zero‐frequency filtering. The average rate of change in amplitude of the zero‐frequency filtered current is used as the fault detector index. The discrimination capability between three‐phase fault and power swing of the extracted feature is the main contribution of this paper. Results of various possible test cases simulated through EMTDC/PSCAD show that the proposed method is fast and reliable in detecting three‐phase faults during power swings.

show abstract

SVM based power swing identification scheme for distance relays

Cited by 32 publications

References 13 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

Investigation of power swing phenomenon and verification of critical clearing time through theoretical calculations and simulated studies

Detection of three-phase fault during power swing using zero frequency filtering

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