Phase angle-based fault detection and classification for protection of transmission lines

Kumar, Bandi Ravi; Mohapatra, Abheejeet; Chakrabarti, Saikat; Kumar, Avinash

doi:10.1016/j.ijepes.2021.107258

Cited by 19 publications

(6 citation statements)

References 24 publications

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“…Where, the frequency is 50Hz, and the equivalent permeability of the iron core μ The cross sectional area S is calculated from the initial permeability of the core and the inner and outer side length, r1 ≈ 5mm, r2 ≈ 0.3 (R-r), N is the turn value, assuming the core mass is 7kg, and the conductor current Iin is 1A, so there is a problem of solving the conditional extremum of the binary function in determining the core parameters. The binary function and its constraint conditions and variable range are as follows (2)(3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14)(15). Here, it is assumed that the iron core works in an unsaturated state.…”

Section: Physical Field Analysis (1) Model Establishmentmentioning

confidence: 99%

An adaptive energy acquisition power supply for power transmission line

Zhang¹,

Zong

Yin

et al. 2023

IEICE Electron. Express

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Reliable power supply is of great significance to the stable operation of the online monitoring device. This paper studies a kind of electric energy collection power supply based on the principle of current mutual inductance. The iron core is made of nanocrystalline alloy with high permeability, and the relationship between the number of turns and the energy consumption power is analyzed by equivalent circuit. A discharge circuit is formed by connecting multiple diodes in series to avoid oversaturation of the iron core, and the residual voltage on the diode supplies the load electric energy. Combined with simulation and experiment, the number of turns and the number of diodes in series are optimized, so that the power supply has high efficiency and is not easy to be deeply saturated. The rectifier bridge and DC-DC voltage regulator module are used to stabilize the output voltage. The test shows that the power supply can support reliable energy extraction within the range of wire current of 17A at least and 1000A at most, and can be applied to lines of various voltage levels.

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Section: Physical Field Analysis (1) Model Establishmentmentioning

confidence: 99%

An adaptive energy acquisition power supply for power transmission line

Zhang¹,

Zong

Yin

et al. 2023

IEICE Electron. Express

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“…A detailed review of techniques used for fault determination and classification is discussed in this section. A fault identification and categorization technique using phase angle variations is reported in [3]. is algorithm used the measurement of instantaneous phase angles of current and voltages computed at both terminals of the line.…”

Section: Related Research Workmentioning

confidence: 99%

Design and Implementation of Hybrid Transmission Line Protection Scheme Using Signal Processing Techniques

Kumar

Sharma

Mahia

et al. 2022

International Transactions on Electrical Energy Systems

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A hybrid scheme for transmission line protection (HSTLP) using the Stockwell transform (ST), Wigner distribution function (WDF), and alienation coefficient (ACF) is designed. Current signals are analyzed using the ST, WDF, and ACF to compute the Stockwell fault index (SFI), Wigner fault index (WFI), and alienation coefficient fault index (ACFI), respectively. These fault indexes are used to derive a hybrid signal processing fault index (HSPFI), which is implemented for the detection of transmission line fault events. The peak magnitude of HSPFI is compared with a preset threshold magnitude (TH) to identify the fault. The statistical formulation is proposed for fault location on the power transmission line. Fault classification is achieved using the number of faulty phases. A hybrid ground fault index (HGFI) is used to recognize the involvement of the ground during the fault event. This HGFI is determined by processing zero sequence current using ST and WDF. The performance of algorithm is tested by various case studies for fault impedance variation, variable sampling frequency, fault incidence angle variation, reverse power flow on transmission line, highly loaded line, different fault locations online, and noisy conditions. The algorithm is also validated to detect a fault on a practical transmission line of large area utility grid of Rajasthan Rajya Vidyut Prasaran Nigam Limited (RVPN) in India. The algorithm performs better than the Hilbert–Huang transform (HHT)-based protection scheme and wavelet transform (WT)-based protection scheme available in the literature in terms of mean error of fault location, fault location accuracy, and noise level. The proposed protection scheme efficiently detected, classified, and located the faulty events such as single-phase-to-ground fault (SPGF), two-phase fault (TPF), two-phase-to-ground fault (TPGF), three-line fault (TLF), and three-line-to-ground fault (TLGF). Transmission line fault location accuracy of 99.031% is achieved. The algorithm performs well even with a high noise level of 10 dB SNR.

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“…The work in [10]- [12] displayed the capacity to locate and classify all faults. The three zones' mho characteristics show STATCOM inclusion and exclusion impedance trajectories.…”

Section: Introductionmentioning

confidence: 99%

Performance enhancement of distance relay in presence of unified power flow controller

Al-Kaoaz

Alsammak

2023

IJPEDS

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The characteristics of the distance relay are devised based on online and fault impedance. The relay uses fault information to react to the expected state; however, integrating the grid with a unified power flow controller (UPFC) might stop the relay from fault-triggered operations, requiring altered relay characteristics. Building relay tripping parameters are among the critical challenges that must be addressed for transmission line distance relays because current transmission networks face higher stress regarding power system operation. Furthermore, the use of flexible AC transmission systems (FACTS) instruments at the transmission level adversely affects distance relay performance due to impedance differences. The UPFC is among the essential FACTS instruments; it comprises shunt and series converters to alter the apparent relay impedance; hence, it was considered for this study, where a test system during fault was assessed to demonstrate the output of the distance relay before and after using the UPFC. MATLAB was used to build scenarios demonstrating the effect of a UPFC located in the transmission line's midsection or end or not using the UPFC. This research offers an analytical technique to determine the probable effects of UPFC on distance relay characteristics. The outcomes provide new relay characteristics for several fault resistances and locations for fault-specific impedance trajectory reactions.

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Phase angle-based fault detection and classification for protection of transmission lines

Cited by 19 publications

References 24 publications

An adaptive energy acquisition power supply for power transmission line

An adaptive energy acquisition power supply for power transmission line

Design and Implementation of Hybrid Transmission Line Protection Scheme Using Signal Processing Techniques

Performance enhancement of distance relay in presence of unified power flow controller

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