Fast Protection of Strong Power Systems With Fault Current Limiters and PLL-Aided Fault Detection

Magnus, Öhrström; Söder, Lennart

doi:10.1109/tpwrd.2011.2107530

Cited by 24 publications

(8 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The Continuous Wavelet Transform (CWT) of a signal f (t), depends on two variables: scale (or frequency), designated by the parameter "a", and time (or position), designated by the parameter "b", and is given by: (4) being, the real function…”

Section: B Transform Waveletmentioning

confidence: 99%

Transients detection and classification in distribution networks for high impedance faults identification

Farias

Morais

Cardoso

et al. 2014

2014 49th International Universities Power Engineering Conference (UPEC)

View full text Add to dashboard Cite

Protection systems used in distribution networks are not able to detect short circuits with high contact resistance due to reduced currents generated, endangering the population and degrading the quality of the energy supplied. In this sense, this paper presents a new technique for detecting high impedance faults (HIF). The major advantage of this method is the not needing of additionally equipment installation in the distribution network, which reduces the cost of its implementation. Moreover, the proposed methodology is immune to any electrical transients generated in the system, such as capacitor bank switching, power transformers and inputs and output loads.

show abstract

Section: B Transform Waveletmentioning

confidence: 99%

Transients detection and classification in distribution networks for high impedance faults identification

Farias

Morais

Cardoso

et al. 2014

2014 49th International Universities Power Engineering Conference (UPEC)

View full text Add to dashboard Cite

show abstract

“…The advent of the phase-locked loop (PLL) dates back to 1930s when it was first designed and used for the synchronous reception of radio signals [1]. Since then, it has found widespread applications in different areas, such as the estimation of fundamental parameters (phase, frequency, and amplitude) of power signals [2]- [83], measurement of harmonics, interharmonics and power quality indices [84]- [90], implementing adaptive filters and robust controllers [91]- [93], control of AC and DC machines [94], [95], contactless energy transfer systems [96], [97], induction heating systems [98], [99], piezoelectric applications [100], [101], battery charge circuits [102], [103], magnetic encoders [104], islanding detection of microgrids [105]- [107], welding industry [108], grid fault and voltage sag detection [109], [110], synchronization of power quality instruments [111], [112], computation of synchrophasors [113], [114], etc. Fig.…”

Section: Introductionmentioning

confidence: 99%

Three-Phase PLLs: A Review of Recent Advances

Golestan

Guerrero

Vasquez

2017

IEEE Trans. Power Electron.

624

336

View full text Add to dashboard Cite

A phase-locked loop (PLL) is a nonlinear negativefeedback control system that synchronizes its output in frequency as well as in phase with its input. PLLs are now widely used for the synchronization of power electronics-based converters and also for monitoring and control purposes in different engineering fields. In recent years, there have been many attempts to design more advanced PLLs for three-phase applications. The aim of this paper is to provide overviews of these attempts, which can be very useful for engineers and academic researchers.

show abstract

“…Travelling wave distance protection cannot protect the whole line and does not have direction discrimination ability. Same with differential protection, it is affected by bus structure, too [6][7][8][9]. Travelling wave amplitude comparison protection principle has improved much compared to other protection principles.…”

Section: Introductionmentioning

confidence: 99%

Ultra-High-Speed Travelling Wave Protection of Transmission Line Using Polarity Comparison Principle Based on Empirical Mode Decomposition

Wang

Gao

Luo

et al. 2015

Mathematical Problems in Engineering

View full text Add to dashboard Cite

The traditional polarity comparison based travelling wave protection, using the initial wave information, is affected by initial fault angle, bus structure, and external fault. And the relationship between the magnitude and polarity of travelling wave is ignored. Because of the protection tripping and malfunction, the further application of this protection principle is affected. Therefore, this paper presents an ultra-high-speed travelling wave protection using integral based polarity comparison principle. After empirical mode decomposition of the original travelling wave, the first-order intrinsic mode function is used as protection object. Based on the relationship between the magnitude and polarity of travelling wave, this paper demonstrates the feasibility of using travelling wave magnitude which contains polar information as direction criterion. And the paper integrates the direction criterion in a period after fault to avoid wave head detection failure. Through PSCAD simulation with the typical 500 kV transmission system, the reliability and sensitivity of travelling wave protection were verified under different factors’ affection.

show abstract

Fast Protection of Strong Power Systems With Fault Current Limiters and PLL-Aided Fault Detection

Cited by 24 publications

References 13 publications

Transients detection and classification in distribution networks for high impedance faults identification

Transients detection and classification in distribution networks for high impedance faults identification

Three-Phase PLLs: A Review of Recent Advances

Ultra-High-Speed Travelling Wave Protection of Transmission Line Using Polarity Comparison Principle Based on Empirical Mode Decomposition

Contact Info

Product

Resources

About