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Protective Relaying of Power Systems Using Mathematical Morphology

:	Q.H. Wu, Zhen Lu, Tianyao Ji
:	Protective Relaying of Power Systems Using Mathematical Morphology
:	Springer-Verlag
:	9781848824997
:	1
:	CHF 132.90
:

:	Elektronik, Elektrotechnik, Nachrichtentechnik
:	English

:	208
:	Wasserzeichen/DRM
:	PC/MAC/eReader/Tablet
:	PDF

This book discusses the development of novel protective relaying algorithms using Mathematical Morphology, a nonlinear signal processing technique derived from set theory and geometry.

Professor Q.H. Wu is the chair of Electrical Engineering at The University of Liverpool, UK. He obtained an MSc(Eng) in Electrical Engineering from Huazhong University of Science and Technology (HUST), China and a PhD in Electrical Engineering from The Queen's University of Belfast (QUB). Before joining The University of Liverpool Professor Wu worked at both QUB and Loughborough University, UK. In 1994 he was awarded the Donald Julius Groen Prize for the best paper published in the Journal of Systems and Control Engineering, Institution of Mechanical Engineers. Professor Wu's research interests include systems modelling, adaptive control, mathematical morphology, evolutionary computation, multi-agent systems and their applications for power system operation and control.

Z. Lu received an MSc(Eng) in Electrical Engineering from Huazhong University of Science and Technology, China. He obtained a PhD degree from The University of Liverpool and is currently a postdoctoral research associate with the Department of Electrical Engineering and Electronics at the university. His research areas include power system protection, mathematical morphology and evolutionary computation.

T. . Ji has received a BA in English and an MSc(Eng) in Signal and Information Processing from Xi'an Jiaotong University, China. She is currently studying for a PhD at the Department of Electrical Engineering and Electronics, The University of Liverpool, UK. Her research areas include mathematical morphology, signal processing and evolutionary computation.

	Preface	6
	Contents	8
	List of Figures	12
	List of Tables	19
	Introduction	21
	1.1 Introduction and Definitions	21
	1.2 Historical Background of Digital Protective Relaying Algorithms	22
	1.3 Development of Protective Relaying Algorithms	23
	1.4 Introduction of Mathematical Morphology to Protective Relaying of Power Systems	27
	1.5 Contents of This Book	30
	Mathematical Morphology	33
	2.1 Introduction	33
	2.2 Basic Morphological Operators	35
	2.3 Morphological Filters	42
	2.4 The Lifting Scheme and Morphological Wavelets	45
	2.5 Summary	57
	Phasor Measurement	61
	3.1 Introduction	61
	3.2 Phasor Measurement Methods	62
	3.3 Power System Faults	67
	3.4 Morphological Transform for DC Offset Removal	69
	3.5 Results of Simulations and Discussions	75
	3.6 Summary	76
	Protection of Transmission Lines	77
	4.1 Introduction	77
	4.2 The Adaptive Distance Relaying Algorithm	79
	4.3 Implementation of ADRA	87
	4.4 Simulation Studies and Results of ADRA	90
	4.5 Protection of a Double Circuit Transmission Line	98
	4.6 The Fault Phase Selector	99
	4.7 Simulation Results and Discussions on Fault Phase Selection	102
	4.8 Summary	109
	Transformer Protection	112
	5.1 Introduction	112
	5.2 Transformer Differential Protection	114
	5.3 Transformer Magnetising Inrush	116
	5.4 Morphological Identification of Inrush	122
	5.5 Simulation Studies and Results Analysis	128
	5.6 Further Discussion of the MM-Based Schemes for Inrush Identification	142
	5.7 Summary	143
	Bus Protection	144
	6.1 Introduction	144
	6.2 Bus Differential Protection	145
	6.3 Current Transformers for Bus Protection	145
	6.4 Current Transformer Problems	146
	6.5 Saturation of Current Transformers	148
	6.6 A Morphological Lifting Scheme for Detection of CT Saturation	149
	6.7 A Compensation Algorithm for Distorted Secondary Current	150
	6.8 Case Studies	152
	6.9 Summary	157
	Ultra-High-Speed Protection	158
	7.1 Introduction	158
	7.2 Principles of UHS Protection	160
	7.3 UHS Directional Protective Relaying	165
	7.4 Summary	179
	Fault Location on Transmission Lines	183
	8.1 Introduction	183
	8.2 Principles of Fault Location	184
	8.3 Noise Removal of Transients	191
	8.4 Accurate Fault Location by Morphological Filters	194
	8.5 Morphological Undecimated Wavelet Decomposition for Fault Location	202
	8.6 Summary	208
	Electromagnetic Transient Analysis of Transmission Lines	209
	A.1 Distributed Parameter Model of Transmission Lines	209
	A.2 Transient Wave Propagation Characteristics	211
	A.3 Incidence, Reflection and Refraction of Transients	213
	References	215
	Index	222