A Novel UHV/EHV Transmission-Line Pilot Protection Based on Fault Component Integrated Impedance

Jiale, Suonan; Liu, Kai; Song, Guobing

doi:10.1109/tpwrd.2010.2066292

Cited by 87 publications

(51 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The application of this principle requires a reliable communication link. However, the use of modern communication principles in power system protection provides the possibility of developing communication-based travelling wave protection [18].…”

Section: Introductionmentioning

confidence: 99%

A Novel Traveling-Wave Directional Relay Based on Apparent Surge Impedance

Liu

2015

IEEE Trans. Power Delivery

View full text Add to dashboard Cite

A novel directional relay, which is based on apparent surge impedance acquired from initial travelling waves, is proposed in this paper. The phasor of initial voltage and current travelling waves extracted by the S-transform are employed to calculate the apparent surge impedance. The criteria to determine the fault direction consist of two mho circles. One is the forward mho circle which is set according to the back-side busbar surge impedance. The other one is the reverse mho circle which is set according to the forward line surge impedance. The fault direction is determined as per the relationship between the apparent surge impedance and the mho circles. The proposed algorithm was verified using the PSCAD/EMTEDC software. The simulation results allow us to draw a conclusion that the proposed algorithm has the ability of fast and reliably discriminating between the forward faults and the reverse faults under various conditions. Index Terms--Apparent surge impedance, directional relay, S-transform, transmission line, travelling wave.

show abstract

Section: Introductionmentioning

confidence: 99%

A Novel Traveling-Wave Directional Relay Based on Apparent Surge Impedance

Liu

2015

IEEE Trans. Power Delivery

View full text Add to dashboard Cite

show abstract

“…It usually requires a much higher sampling frequency than that of conventional digital relays and is also susceptible to electromagnetic interferences. Research works have been carried out on integrated impedance‐based relaying scheme on EHV/ultra high voltage (UHV) lines . However, the problem associated is the setting of threshold value that varies significantly with change in operating or fault conditions.…”

Section: Introductionmentioning

confidence: 99%

Real time digital simulator implementation of data-mining-based integrated impedance relay for compensated lines

Jena

Samantaray

2014

Int. Trans. Electr. Energ. Syst.

View full text Add to dashboard Cite

Summary The paper presents integrated impedance‐based intelligent relaying for thyristor‐controlled series capacitor‐compensated transmission lines on Real Time Digital Simulator platform. Integrated impedance is defined as the ratio of sum of the voltage phasors across two ends of the transmission line to the sum of the current phasors through two ends of the same transmission line. The imaginary part of integrated impedance of the transmission line is used as input to a data‐mining model known as decision tree that determines whether the fault is within the protected zone or not. Critical issues such as power swing and fault during power swing are also included during validation of the relay on Real time digital simulator platform. The test results obtained indicate that the proposed integrated impedance‐based intelligent relaying is highly dependable and secure for protection of extra high voltage transmission lines including thyristor‐controlled series capacitor. Copyright © 2014 John Wiley & Sons, Ltd.

show abstract

“…Recently, a new communication-aided pilot protection scheme is introduced using the integrated impedance which is extracted by measuring the voltages and currents of both ends of the line [14][15][16][17][18][19]. This impedance demonstrates different behaviours in internal and external faults.…”

Section: Introductionmentioning

confidence: 99%

Protection of transmission lines using fault component integrated power

Bolandi

Seyedi

Hashemi

2014

IET Generation, Transmission & Distribution

View full text Add to dashboard Cite

In this study, a novel scheme is proposed for pilot protection of transmission line based on the fault component integrated power (FCIP). An appropriate definition is proposed for FCIP. The proposed scheme is able to quickly discriminate the normal condition, internal fault and external fault situations, even in severe operating and emergency conditions. This FCIP-based scheme is not affected by the line charging capacitive and, therefore it does not need to be compensated for the capacitive current. Hence, this novel pilot protection scheme, based on FCIP, can be used for long distance high-voltage transmission lines. The faulty phase/phases can also be detected by the proposed scheme. Moreover, compared with a newlyintroduced protective scheme which is based on the fault component integrated impedance, the proposed FCIP-based scheme has faster operation speed. The efficiency of the proposed protective scheme is evaluated and approved over extensive simulation studies.

show abstract

A Novel UHV/EHV Transmission-Line Pilot Protection Based on Fault Component Integrated Impedance

Cited by 87 publications

References 4 publications

A Novel Traveling-Wave Directional Relay Based on Apparent Surge Impedance

A Novel Traveling-Wave Directional Relay Based on Apparent Surge Impedance

Real time digital simulator implementation of data-mining-based integrated impedance relay for compensated lines

Protection of transmission lines using fault component integrated power

Contact Info

Product

Resources

About