A Microcomputer Based Symmetrical Component Distance Relay

Phadke, A.G.; Hlibka, T.; Ibrahim, Mohamed A.; Adamiak, Mark

doi:10.1109/pica.1979.720045

Cited by 33 publications

(7 citation statements)

References 8 publications

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“…IV. FUTURE DEVELOPMENTS Literature [7], [8] present a symmetrical component based distance relay (SCDR), another paradigm for distance relaying modeling that really allows to take full advantage of the proposed method, since GDSC output naturally provides FFPS and FFNS measurements. Additionally, the use of the SCDR allows reducing the computational burden of the algorithm, since a single performance equation enables identifying the faulty phases and calculating the distance to the fault.…”

Section: B Applying a Real Disturbancementioning

confidence: 99%

A new method for phasor estimation in numerical protective relays based on generalized delayed signal cancelation filtering

Filho

Neves

Arcanjo

et al. 2013

4th International Conference on Power Engineering, Energy and Electrical Drives

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This work presents a novel phasor estimation algorithm based on the Generalized Delayed Signal Cancelation (GDSC) method, for estimating phasors in numerical protective relays. The method implementation requires the space-vector concept, the Clarke (αβ0) transform, and by means of a discretetime formulation and few arithmetic operations, pre-determined undesirable sequence component harmonics are canceled, extracting the sequence fundamental-frequency or harmonic components, which are required for numerical protective devices algorithms. The proposed algorithm for phasor estimation is applied for implementing a distance relay. The proposed and traditional algorithms are compared by using recorded fault data of a real power system.Index Terms-discrete Fourier transform (DFT), space vector discrete fourier transform (SVFT).

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Section: B Applying a Real Disturbancementioning

confidence: 99%

A new method for phasor estimation in numerical protective relays based on generalized delayed signal cancelation filtering

Filho

Neves

Arcanjo

et al. 2013

4th International Conference on Power Engineering, Energy and Electrical Drives

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“…In the early 1970s minicomputers were used for executing relay algorithms, but it was found very difficult to implement distance relaying algorithms due to delays in execution of instruction time. To overcome this problem Phadke et al [1] proposed the use of symmetrical components of voltages and currents to implement distance relay algorithms. This has led to the development of first phasor measurement unit (PMU) in 1988 by them at Virginia Tech [2], [3].…”

Section: Introductionmentioning

confidence: 99%

Development of cost-effective phasor measurement unit for wide area monitoring system applications

Raju

Shree

Kumar

2021

IJECE

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<span>Sustained growth in the demand with unprecedented investments in the transmission infrastructure resulted in narrow operational margins for power system operators across the globe. As a result, power networks are operating near to stability limits. This has demanded the electrical utilities to explore new avenues for control and protection of wide area systems. Present supervisory control and data acquisition/energy management systems (SCADA/EMS) can only facilitate steady state model of the network, whereas synchrophasor measurements with GPS time stamp from wide area can provide dynamic view of power grid that enables supervision, and protection of power network and allow the operator to take necessary control/remedial measures in the new regime of grid operations. Construction of phasor measurement unit (PMU) that provide synchrophasors for the assessment of system state is widely accepted as an essential component for the successful execution of wide area monitoring system (WAMS) applications. Commercial PMUs comes with many constraints such as cost, proprietary hardware designs and software. All these constraints have limited the deployment of PMUs at high voltage transmission systems alone. This paper addresses the issues by developing a cost-effective PMU with open-source hardware, which can be easily modified as per the requirements of the applications. The proposed device is tested with IEEE standards.</span>

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“…Basically, the estimation process of voltage and current signals, essential to calculate the impedance, involves the traditional algorithms based on Discrete Fourier Transform [3], symmetrical components [4], Kalman filtering [5], or orthogonal expansion [6]. A good review about this topic has been performed in [7].…”

Section: Introductionmentioning

confidence: 99%

Numerical distance relaying algorithm based on Mathematical Morphology and Least-Squares Curve Fitting method

Morais

Cardoso

Mariotto

et al. 2011

Electric Power Systems Research

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A Microcomputer Based Symmetrical Component Distance Relay

Cited by 33 publications

References 8 publications

A new method for phasor estimation in numerical protective relays based on generalized delayed signal cancelation filtering

A new method for phasor estimation in numerical protective relays based on generalized delayed signal cancelation filtering

Development of cost-effective phasor measurement unit for wide area monitoring system applications

Numerical distance relaying algorithm based on Mathematical Morphology and Least-Squares Curve Fitting method

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