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E-raamat: Protection Technologies of Ultra-High-Voltage AC Transmission Systems

, (Department of Experimental Statistics Louisiana State University Baton Rouge, Louisiana, USA), (Professor, School of Electrical and Information Engineering, Tianjin University, Tianjin, China.), (Professor, School of Electrical )
  • Formaat: EPUB+DRM
  • Ilmumisaeg: 24-Jan-2020
  • Kirjastus: Academic Press Inc
  • Keel: eng
  • ISBN-13: 9780128162064
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Protection Technologies of Ultra-High-Voltage AC Transmission SystemsSuurem pilt
  • Formaat: EPUB+DRM
  • Ilmumisaeg: 24-Jan-2020
  • Kirjastus: Academic Press Inc
  • Keel: eng
  • ISBN-13: 9780128162064
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Protection Technologies of Ultra-High-Voltage AC Transmission Systems considers the latest research on UHV, UHV transmission line electromagnetic field, transmission line parameters, and tower structures, with a focus on protective relaying of UHV transmission systems. This book gives insights into protective relaying of UHV AC transmission systems and sheds light on the conundrum of protective relaying for the EHV systems. In addition, it elaborates on both traditional relaying and the application of new type current differential protection, distance protection and automatic reclosing, as well as protective schemes for transformers and reactors in UHV transmission systems.

This resource will serve as an important reference for technical personnel in network design and operation, as well as students and engineers in related engineering areas.

  • Compares new advances and trends in Ultra-High-Voltage (UHV) transmission system from a global aspect
  • Describes UHV protection technologies
  • Evaluates conventional protection and novel protection principles in applied and verified global systems
1 Introduction
1(18)
1.1 Development of the ultra-high-voltage AC transmission system
1(5)
1.2 Key technology of the ultra-high-voltage AC transmission system
6(4)
1.3 Relay protection of the ultra-high-voltage AC transmission system
10(5)
References
15(4)
2 Electromagnetic environment
19(22)
2.1 Structural parameters of ultra-high-voltage transmission lines
19(3)
2.2 Electric field intensity under transmission lines
22(10)
2.3 Power frequency magnetic field of transmission lines
32(3)
2.4 Limits for electromagnetic fields and radio interference
35(5)
References
40(1)
3 Transmission line parameters
41(20)
3.1 Distributed parameters of transmission line
41(4)
3.2 Conductors arrangement
45(7)
3.3 Tower structure
52(7)
References
59(2)
4 Protection configuration
61(12)
4.1 Requirements for protection
61(1)
4.2 Protection configuration
62(6)
4.3 Selection of protection and communication channels
68(4)
References
72(1)
5 Directional pilot protection
73(24)
5.1 Configuration of main protection
73(14)
5.2 Zero-sequence current directional protection
87(4)
5.3 Configuration of automatic reclosure
91(3)
5.4 Basic evaluation
94(1)
Reference
95(2)
6 Transmission line model
97(16)
6.1 Brief introduction
97(2)
6.2 Long-line equation of transmission line
99(4)
6.3 Bergeron model of transmission line
103(6)
6.4 Dynamic phasor model of transmission line
109(2)
References
111(2)
7 Current differential protection
113(14)
7.1 Basic principle
113(9)
7.2 Protection for transmission lines with shunt reactor
122(4)
References
126(1)
8 Distance protection
127(22)
8.1 Influence of capacitance current
128(5)
8.2 Nonlinear measured impedance
133(2)
8.3 Distance protection for long transmission lines
135(12)
References
147(2)
9 Overvoltage
149(14)
9.1 Overview
149(5)
9.2 Overvoltage characteristics of ultra-high-voltage transmission systems
154(3)
9.3 Study on overvoltage of ultra-high-voltage transmission lines
157(1)
9.4 Field tests of operating overvoltage
158(4)
References
162(1)
10 Protection for transformers and shunt reactors
163(26)
10.1 Structural features of ultra-high-voltage transformers
163(3)
10.2 Protection configuration of ultra-high-voltage transformers
166(2)
10.3 Distributed protection scheme for ultra-high-voltage transformers
168(11)
10.4 Interturn short-circuit protection for ultra-high-voltage shunt reactors
179(4)
10.5 Fast impedance protection for large-capacity transformers
183(4)
References
187(2)
11 Multi-circuit transmission lines
189(26)
11.1 Tower structure and conductor arrangement
189(5)
11.2 Unbalanced current of double-circuit lines
194(16)
11.3 Unbalanced current of multicircuit lines
210(3)
References
213(2)
12 Half-wavelength transmission lines
215(24)
12.1 Basic characteristics
215(3)
12.2 New principle of current differential protection
218(10)
12.3 New principle of directional pilot protection
228(10)
References
238(1)
Index 239
Today, Dr. Lis research is focused on statistics and machine learning. He has published >75 peer reviewed research papers with >1,300 citations of his work. Yongli Li is a pofessor at the School of Electrical and Information Engineering, Tianjin University, Tianjin, China Jiali He is a professor at the School of Electrical and Information Engineering, Tianjin University, Tianjin, China Yuping Zheng is the director of the State Key Laboratory of Smart Grid Protection and Operation Control, China
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