Detection of fault during power swing using superimposed negative sequence apparent power based scheme

Kumar, Jitendra; Jena, Premalata

doi:10.1109/cera.2017.8343301

Cited by 10 publications

(6 citation statements)

References 8 publications

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“…According to Equations (18) and (19), when a symmetrical fault or a PS occurs in the grid, the waveforms of the currents change, and so does the ADALINE behaviour. In fact, at these situations, ADALINE cannot accurately track the original waveform, and therefore, e(t) is no longer zero.…”

Section: Psb Operationmentioning

confidence: 99%

“…Another challenge is when a symmetrical fault occurs during a PS. According to Equations (18) and (19), in the event of a symmetrical fault and in order to accurately match ADALINE with the current waveform, A DC in Equations (1) and 7should take a non-zero value. Therefore, it can be seen that the change of A DC absolute value versus the time can be a good parameter for detection of symmetrical faults.…”

Section: Psb Operationmentioning

confidence: 99%

“…That method depends on the sending end currents and receiving end currents of each phase. The authors in [18] suggest a solution based on the negative sequence of the apparent power. The rate of the energy changes of the current signal in [19] is used for the detection of PS, which is dependent on the specified threshold limit.…”

Section: Introductionmentioning

confidence: 99%

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A novel fast power swing blocking strategy for distance relay based on ADALINE and moving window averaging technique

Jannati

Mohammadi

2020

IET Generation Trans & Dist

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This study proposes a a novel efficient strategy for identifying symmetrical faults from power swings in order to improve the performance of distance relay. This method is based on two new indices and the use of adaptive linear neuron and moving window averaging technique, which is applied to the waveforms of the current. If the proposed algorithm detects power swings, it enables power swing blocking; and if it recognises the occurrence as a symmetrical fault, it resets the power swing blocking as quickly as possible. The efficiency of the proposed method has been tested in different conditions and compared to other methods from different points of view. Simulation results under different conditions in PSCAD and MATLAB software show that the proposed strategy is able to detect symmetrical faults from power swings with high accuracy. The high robustness of adaptive linear neuron and the moving window averaging technique has made the proposed method highly noise-resistant; and also, because of its low computational cost, the response speed of the proposed strategy is very high, and hence its practical implementation is simple.

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Section: Psb Operationmentioning

confidence: 99%

Section: Psb Operationmentioning

confidence: 99%

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A novel fast power swing blocking strategy for distance relay based on ADALINE and moving window averaging technique

Jannati

Mohammadi

2020

IET Generation Trans & Dist

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“…The problem with this method is the large number of simulations required to select the appropriate auto-regression parameters. In [14], a fault detection scheme was proposed based on superimposed negative sequence apparent power during power swing. In [15], a method was introduced which is dependent on the TKEO of zero sequence voltage (obtained from instantaneous values) and negative sequence current (obtained from phasor values) during power swing.…”

Section: Introductionmentioning

confidence: 99%

A Novel Approach for Elimination of Defects of Blocking and Unblocking in Distance Relays during Power Swing

Mehri,

Mazlumi,

HashemiDezaki

et al. 2023

Sustainability

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In power systems, distance relays are commonly employed as the primary protection for transmission lines, and their operation is of utmost importance. Power swings are a type of phenomenon that can lead to improper functioning of conventional distance relays, posing a threat to the uninterrupted flow of electrical power. The occurrence of a power swing disrupts the impedance measured by the relay, causing it to deviate from the normal load condition and enter the relay tripping zones. This research paper introduces a novel method based on the Prony method for extracting current waveform components, enabling fault detection during power swings. Subsequently, the proposed method’s accuracy is assessed through simulations implemented on a nine-bus power system, involving three-phase current signal processing and the application of the proposed algorithm. Various fault scenarios encompassing varying fault distances from the relay position, fault resistances, and power angles within the 9-bus system are simulated to encompass a wide range of fault environments. The simulation results demonstrate the effectiveness of the proposed algorithm in detecting all types of faults, including symmetrical and asymmetrical faults, during power swings.

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“…The simplification done in evaluating the magnitudes of each frequency was compensated by the accuracy and time required for transforming from time domain to frequency domain. The other innovative methodologies involve, Taylor series expansion using error estimation [12]; usage of negative sequence components in evaluating negative sequence apparent power [13]; evaluation of a power swing and fault using index by using voltage angle and active power flows [14]; Lissajous figures obtained from voltages and currents signals [15]; differences observed in the phase angles of currents [16]; and usage of differential power coefficients which estimates the difference in predicted and actual power flows leading to identification of fault [17].…”

Section: Introductionmentioning

confidence: 99%

Discriminating Faults from Power Swing Using Impedance Angle and Analysis in Three Dimensional Space

Zeno¹,

Orillaza²

2019

IJCEE

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Faults lead to de-energising of a section of transmission line thus decreasing the reliability of the system. Power swing affects the distance relays leading to false alarms which were the leading cause of unreliability. Faults cause permanent movement of the operating point in RX plot with a transient oscillation. The locus of power swing forms closed loops. Here, impedance angles were used to discriminate the faults from power swing. The investigation was carried out along with three dimensional plots to visualize the locus of impedance in resistance, reactance and time axis. Results signify that faults were differentiated from power swing using differential impedance angle. The test cases include all the unbalanced faults as well as an unstable swing. Power swing formed bi-conical loops above and below the ideal operating impedance, while differential impedance formed hyperboloid with the mean impedance being zero. Simulations were carried out in a 2 bus system and all the voltages and currents were extracted from the center of transmission line. Visual representation of normal operating impedances and power swing using three dimensional plots (R-X-t space) and (dR/dt-dX/dt-t space) were shown in the Appendix.

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Detection of fault during power swing using superimposed negative sequence apparent power based scheme

Cited by 10 publications

References 8 publications

A novel fast power swing blocking strategy for distance relay based on ADALINE and moving window averaging technique

A novel fast power swing blocking strategy for distance relay based on ADALINE and moving window averaging technique

A Novel Approach for Elimination of Defects of Blocking and Unblocking in Distance Relays during Power Swing

Discriminating Faults from Power Swing Using Impedance Angle and Analysis in Three Dimensional Space

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