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Protective Relaying of Power Systems Using Mathematical Morphology

Part of the Power Systems Book Series

DOI: 10.1007/978-1-84882-499-7

ISBN: 978-1-84882-498-0

Publisher: Springer London - Springer Journals

Jan 1, 2009

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Chapter 1Introduction

Pages: 1 –12

[In a large power system network comprising hundreds of complexly interacting elements, there always exists the possibility of disturbance and fault [117]. The operations of early fault identification and rapid equipment isolation are imperative to maintain the reliability and integrity of the...
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Chapter 2Mathematical Morphology

Pages: 13 –40

[MM can be defined as a theory and technique for the analysis of spatial structures, based on set theory, integral geometry and lattice algebra. It is totally different from the methods that are based on integral transform, such as FT and WT, in basic principles, algorithmic operations and...
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Chapter 3Phasor Measurement

Pages: 41 –56

[The Fourier transform (FT) is commonly used for signal processing and in particular is adopted by digital distance protection relays for phasor measurement of electric power signals [139]. However, when a fault occurs on transmission lines, the input current of a relay may contain exponentially...
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Chapter 4Protection of Transmission Lines

Pages: 57 –91

[This chapter presents two examples of the MM-based method used for protection of transmission lines. One is concerned with an adaptive distance relaying algorithm (ADRA) designed for transmission line protection. In ADRA, a morphological fault detector (MFD) designed based on MM is used to...
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Chapter 5Transformer Protection

Pages: 93 –124

[This chapter presents two MM-based schemes for the identification of transformer magnetising inrush. The first scheme detects the inrush current using a morphological decomposition scheme (MDS) to extract the singularity peculiar to the asymmetric inrush waveform, while attenuating other...
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Chapter 6Bus Protection

Pages: 125 –138

[Differential protection relays are commonly used for bus protection. The transmission line currents injected to a busbar are measured by CTs as inputs of the relays. CT saturation can cause mal-operation of a protection relay or even prevent tripping. The waveform of the secondary current is...
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Chapter 7Ultra-High-Speed Protection

Pages: 139 –163

[Chapters 7 and 8 are concerned with the study of transient-based ultrahigh-speed (UHS) protective relaying. In this chapter, we concentrate on the directional protection of the transmission lines and the positional protection is explicated in the next chapter. The directional protection relay...
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Chapter 8Fault Location on Transmission Lines

Pages: 165 –190

[The content of this chapter can be viewed as the consequent processing of the directional protection discussed in the previous chapter. After deriving the direction discriminants of a fault taking place on a transmission line, the location of the fault can be determined by extracting the...

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