An Innovative Pilot Relaying Scheme for Shunt-Compensated Line

Gupta, Om Hari; Tripathy, Manoj

doi:10.1109/tpwrd.2015.2394353

Cited by 44 publications

(32 citation statements)

References 10 publications

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“…The line parameters of the study of Jena and Pradhan are used in the simulation studies. The performance of the proposed scheme has been investigated for various uncertainties, and the performance of the scheme has been compared with new and conventional (distance and differential current) schemes. Later, the scheme is validated using RTDS.…”

Section: Resultsmentioning

confidence: 99%

“…Differential current scheme is a pilot relaying scheme, which is found susceptible to the high‐resistance faults . Pilot‐based relaying schemes for the protection of transmission line have been introduced in some studies, which are able to detect even high‐resistance faults. The schemes of some studies are dependent on the source impedance, and complete knowledge of power system is required, which makes the relaying vulnerable to the system changes (as equivalent source impedance of the power system may change time to time).…”

Section: Introductionmentioning

confidence: 99%

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ERF-based fault detection scheme for STATCOM-compensated line

Gupta

Tripathy

2016

Int. Trans. Electr. Energ. Syst.

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Summary The shunt flexible AC transmission system devices affect the protection schemes because of reactive power injection. Therefore, robust protection schemes are required. This study presents a fault detection scheme, which is based on estimated reactive power factor (ERF) and differential current with modified setting. The ERF is defined as sine of phase difference between the static synchronous compensator tap voltage and differential current. The static synchronous compensator tap voltage can be estimated using local end voltage and current. The ERF is measured at both the relay ends. In capacitive mode, if both ERFs are more than upper threshold, the fault is external, and if any ERF is less than upper threshold, the fault is internal. In inductive mode, if ERF is between upper and lower threshold, fault is internal else, if differential current is more than modified differential current setting, the fault is internal, or else, the fault is external. The performance of presented scheme is investigated for various system configurations with PSCAD/EMTDC simulations. Further, the scheme is successfully validated in real‐time digital simulator. It is found that the scheme is robust and selective for various faulty conditions, compensation level variations, and location variations.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

ERF-based fault detection scheme for STATCOM-compensated line

Gupta

Tripathy

2016

Int. Trans. Electr. Energ. Syst.

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“…The researcher worked on fault detection, fault classification and direction estimation for compensated transmission lines [13][14][15][16]. Superimposed sequence components-based integrated impedance (SSCII) technique is used for fault detection and fault classification in shunt (Staticvar compensator) compensated line.…”

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confidence: 99%

“…Superimposed sequence components-based integrated impedance (SSCII) technique is used for fault detection and fault classification in shunt (Staticvar compensator) compensated line. The magnitude of SSCII is small for internal fault and very large for external faults [13]. ANN and wavelet transform is used for the protection of transmission line with FACTS (Thyristor-Controlled Series Capacitor) device [13].…”

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confidence: 99%

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Fault detection, classification and section identification on distribution network with D-STATCOM using ANN

Netam¹,

Yadav²

2016

IJATEE

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Impedance differential plane for fault detection and faulty phase identification of FACTS compensated transmission line

Kumar

Yadav

Pazoki

2018

Int Trans Electr Energ Syst

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Summary This paper presents an impedance differential plane (IDP) characteristic for the protection of Flexible AC Transmission Systems compensated transmission line using two‐terminal synchronized measurements. The proposed algorithm identifies all shunt faults in the protected zone precisely. Restraint region is developed in a complex plane with the information of impedance ratio and their angle difference of both terminals to determine the short‐circuit shunt fault in its zone of protection. In a complex plane, the y‐axis stands for the impedance ratio, and the x‐axis stands for angle difference. The proposed IDP characteristics evaluated in a three‐machine with a detailed model of Unified Power Flow Controller (UPFC) and western system coordinating council nine‐bus systems. The simulated test results prove increased sensitivity and reliability. The evaluation of IDP characteristic under different fault situations confirms its accuracy, selectivity, and robustness. Simulation study considers different operating modes of UPFC, compensation levels of UPFC, noisy conditions, and the CT and CCVT errors. Simulation studies bring out the superiority of the IDP characteristic.

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An Innovative Pilot Relaying Scheme for Shunt-Compensated Line

Cited by 44 publications

References 10 publications

ERF-based fault detection scheme for STATCOM-compensated line

ERF-based fault detection scheme for STATCOM-compensated line

Fault detection, classification and section identification on distribution network with D-STATCOM using ANN

Impedance differential plane for fault detection and faulty phase identification of FACTS compensated transmission line

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