Introducing HVDC What Is HVDC?
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High Voltage Direct Current Transmission – Proven Technology for Power Exchange
www.siemens.com/energy/hvdc High Voltage Direct Current Transmission – Proven Technology for Power Exchange Answers for energy. 2 Contents Chapter Theme Page 1 Why High Voltage Direct Current? 4 2 Main Types of HVDC Schemes 6 3 Converter Theory 8 4 Principle Arrangement of an HVDC Transmission Project 11 5 Main Components 14 5.1 Thyristor Valves 14 5.2 Converter Transformer 18 5.3 Smoothing Reactor 20 5.4 Harmonic Filters 22 5.4.1 AC Harmonic Filter 22 5.4.2 DC Harmonic Filter 25 5.4.3 Active Harmonic Filter 26 5.5 Surge Arrester 28 5.6 DC Transmission Circuit 31 5.6.1 DC Transmission Line 31 5.6.2 DC Cable 32 5.6.3 High Speed DC Switches 34 5.6.4 Earth Electrode 36 5.7 Control & Protection 38 6 System Studies, Digital Models, Design Specifications 45 7 Project Management 46 3 1 Why High Voltage Direct Current? 1.1 Highlights from the High Voltage Direct In 1941, the first contract for a commercial HVDC Current (HVDC) History system was signed in Germany: 60 MW were to be supplied to the city of Berlin via an underground The transmission and distribution of electrical energy cable of 115 km length. The system with ±200 kV started with direct current. In 1882, a 50-km-long and 150 A was ready for energizing in 1945. It was 2-kV DC transmission line was built between Miesbach never put into operation. and Munich in Germany. At that time, conversion between reasonable consumer voltages and higher Since then, several large HVDC systems have been DC transmission voltages could only be realized by realized with mercury arc valves. -
Power Electronics for Distributed Energy Systems and Transmission and Distribution Applications
ORNL/TM-2005/230 POWER ELECTRONICS FOR DISTRIBUTED ENERGY SYSTEMS AND TRANSMISSION AND DISTRIBUTION APPLICATIONS L. M. Tolbert T. J. King B. Ozpineci J. B. Campbell G. Muralidharan D. T. Rizy A. S. Sabau H. Zhang* W. Zhang* Y. Xu* H. F. Huq* H. Liu* December 2005 *The University of Tennessee-Knoxville ORNL/TM-2005/230 Engineering Science and Technology Division POWER ELECTRONICS FOR DISTRIBUTED ENERGY SYSTEMS AND TRANSMISSION AND DISTRIBUTION APPLICATIONS L. M. Tolbert T. J. King B. Ozpineci J. B. Campbell G. Muralidharan D. T. Rizy A. S. Sabau H. Zhang W. Zhang Y. Xu H. F. Huq H. Liu Publication Date: December 2005 Prepared by the OAK RIDGE NATIONAL LABORATORY Oak Ridge, Tennessee 37831 managed by UT-BATTELLE, LLC for the U.S. DEPARTMENT OF ENERGY Under contract DE-AC05-00OR22725 DOCUMENT AVAILABILITY Reports produced after January 1, 1996, are generally available free via the U.S. Department of Energy (DOE) Information Bridge. Web site http://www.osti.gov/bridge Not available externally. Reports are available to DOE employees, DOE contractors, Energy Technology Data Exchange (ETDE) representatives, and International Nuclear Information System (INIS) representatives from the following source. Office of Scientific and Technical Information P.O. Box 62 Oak Ridge, TN 37831 Telephone 865-576-8401 Fax 865-576-5728 E-mail [email protected] Web site http://www.osti.gov/contact.html This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. -
Basics of HVDC: AC Compared DC
Basics of HVDC: AC compared to DC Dr. Ram Adapa Technical Executive, EPRI [email protected] HVDC Lines and Cables Course June 12, 2017 © 2017 Electric Power Research Institute, Inc. All rights reserved. Increased Benefits of Long Distance Transmission .Carrying energy from cheap generation sources which are far away from the load centers. .Long distance transmission increases competition in new wholesale electricity markets . Long distance electricity trade could include across nations or multiple areas within a nation and allows arbitrage of price differences .Long distance transmission allows interconnection of networks and thus reducing the reserve margins across all networks. .More stable long distance transmission is needed to meet contractual obligations 2 © 2017 Electric Power Research Institute, Inc. All rights reserved. Transmitting Fuel versus Transmitting Energy .Load centers can be served by: – Long distance transmission with remote generation – Transmitting fuel to the local generation facilities .Bottom line is Economics to see which option is better .Depends on many factors – Type of fuel – coal can be transported, hydro can’t – Cost of transporting fuel to local generators – Availability of generation facilities close to load centers – Allowable pollution levels at the local gen. facilities 3 © 2017 Electric Power Research Institute, Inc. All rights reserved. Long Distance Transmission – AC versus DC .AC versus DC debate goes back to beginnings of Electricity – DC was first (Thomas Edison) – AC came later (Tesla / Westinghouse) .AC became popular due to transformers and other AC equipment .Long Distance Transmission – AC versus DC - based on economics and technical requirements 4 © 2017 Electric Power Research Institute, Inc. All rights reserved. 5 5 © 2017 Electric Power Research Institute, Inc. -
HVDC Transmission PDF
High Voltage Direct Current Transmission – Proven Technology for Power Exchange 2 Contents Chapter Theme Page Contents 3 1Why High Voltage Direct Current? 4 2 Main Types of HVDC Schemes 6 3 Converter Theory 8 4Principle Arrangement of an 11 HVDC Transmission Project 5 Main Components 14 5.1 Thyristor Valves 15 5.2 Converter Transformer 18 5.3 Smoothing Reactor 21 5.4 Harmonic Filters22 5.4.1 AC Harmonic Filter 23 5.4.2 DC Harmonic Filter 25 5.4.3 Active Harmonic Filter 26 5.5 Surge Arrester 28 5.6 DC Transmission Circuit 5.6.1 DC Transmission Line 31 5.6.2 DC Cable 33 5.6.3 High Speed DC Switches 34 5.6.4 Earth Electrode 36 5.7 Control & Protection 38 6System Studies, Digital Models, 45 Design Specifications 7Project Management 46 3 1 Why High Voltage Direct Current ? 1.1 Highlights from the High Line-Commutated Current Sourced Self-Commutated Voltage Sourced Voltage Direct Current (HVDC) History Converters Converters The transmission and distribution of The invention of mercury arc rectifiers in Voltage sourced converters require electrical energy started with direct the nineteen-thirties made the design of semiconductor devices with turn-off current. In 1882, a 50-km-long 2-kV DC line-commutated current sourced capability. The development of Insulated transmission line was built between converters possible. Gate Bipolar Transistors (IGBT) with high Miesbach and Munich in Germany. voltage ratings have accelerated the At that time, conversion between In 1941, the first contract for a commer- development of voltage sourced reasonable consumer voltages and cial HVDC system was signed in converters for HVDC applications in the higher DC transmission voltages could Germany: 60 MW were to be supplied lower power range. -
Operational Strategies for HVDC Transmission in Smart Grids: the Security Versus Markets Dilemma
Operational strategies for HVDC transmission in smart grids: the security versus markets dilemma Master Thesis Chanpreet Kaur Talwar Technische Universiteit Delft OPERATIONAL STRATEGIES FOR HVDC TRANSMISSION IN SMART GRIDS: THE SECURITY VERSUS MARKETS DILEMMA MASTER THESIS by Chanpreet Kaur Talwar in partial fulfillment of the requirements for the degree of Master of Science in Electrical Engineering and Computer Science (Intelligent Electrical Power Grids) at the Delft University of Technology, to be defended publicly on Monday August 28, 2017 at 10:00 AM. Supervisors: Prof. dr. Peter Palensky, TU Delft Dr. ir. Georgios Papaefthymiou, Elia Grid International, Germany Ir. Martijn de Jong, TU Delft Thesis committee: Prof. dr. Peter Palensky, TU Delft Dr. ir. Jose Luis Rueda Torres, TU Delft Dr. Domenico Lahaye, TU Delft Ir. Martijn de Jong, TU Delft An electronic version of this thesis is available at http://repository.tudelft.nl/. Preface First of all, I wish to thank my responsible supervisor, prof. Peter Palensky for guiding me in pursuing my thesis under his kind patronage, and allowing me to be a part of the Intelligent Electrical Power Grid (IEPG) research group in the Netherlands. Second and foremost, I am highly thankful to my daily su- pervisor Martijn De Jong for his monetary and moral support during the course of thesis studies. Words cannot express my sincere appreciation, but all I can say is that I shall always remain highly obliged and grateful to you for supervising my work, and finding time for me from your busy schedule to clarify all my queries and doubts in the best possible way. -
Holistic Approach to Offshore Transmission Planning in Great Britain
OFFSHORE COORDINATION Holistic Approach to Offshore Transmission Planning in Great Britain National Grid ESO Report No.: 20-1256, Rev. 2 Date: 14-09-2020 Project name: Offshore Coordination DNV GL - Energy Report title: Holistic Approach to Offshore Transmission P.O. Box 9035, Planning in Great Britain 6800 ET Arnhem, Customer: National Grid ESO The Netherlands Tel: +31 26 356 2370 Customer contact: Luke Wainwright National HVDC Centre 11 Auchindoun Way Wardpark, Cumbernauld, G68 Date of issue: 14-09-2020 0FQ Project No.: 10245682 EPNC Report No.: 20-1256 2 7 Torriano Mews, Kentish Town, London NW5 2RZ Objective: Analysis of technical aspects of the coordinated approach to offshore transmission grid development in Great Britain. Overview of technology readiness, technical barriers to integration, proposals to overcome barriers, development of conceptual network designs, power system analysis and unit costs collection. Prepared by: Prepared by: Verified by: Jiayang Wu Ian Cowan Yongtao Yang Riaan Marshall Bridget Morgan Maksym Semenyuk Edgar Goddard Benjamin Marshall Leigh Williams Oluwole Daniel Adeuyi Víctor García Marie Jonette Rustad Yalin Huang DNV GL – Report No. 20-1256, Rev. 2 – www.dnvgl.com Page i Copyright © DNV GL 2020. All rights reserved. Unless otherwise agreed in writing: (i) This publication or parts thereof may not be copied, reproduced or transmitted in any form, or by any means, whether digitally or otherwise; (ii) The content of this publication shall be kept confidential by the customer; (iii) No third party may rely on its contents; and (iv) DNV GL undertakes no duty of care toward any third party. Reference to part of this publication which may lead to misinterpretation is prohibited. -
HVDC GRIDS: for Offshore and Supergrid of the Future
HVDC GRIDS IEEE Press 445 Hoes Lane Piscataway, NJ 08854 IEEE Press Editorial Board Tariq Samad, Editor in Chief George W. Arnold Xiaoou Li Ray Perez Giancarlo Fortino Vladimir Lumelsky Linda Shafer Dmitry Goldgof Pui-In Mak Zidong Wang Ekram Hossain Jeffrey Nanzer MengChu Zhou Kenneth Moore, Director of IEEE Book and Information Services (BIS) Technical Reviewer Dragan Jovcic, University of Aberdeen HVDC GRIDS For Offshore and Supergrid of the Future Edited by DIRK VAN HERTEM ORIOL GOMIS-BELLMUNT JUN LIANG Copyright © 2016 by The Institute of Electrical and Electronics Engineers, Inc. Published by John Wiley & Sons, Inc., Hoboken, New Jersey. All rights reserved. Published simultaneously in Canada. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, scanning, or otherwise, except as permitted under Section 107 or 108 of the 1976 United States Copyright Act, without either the prior written permission of the Publisher, or authorization through payment of the appropriate per-copy fee to the Copyright Clearance Center, Inc., 222 Rosewood Drive, Danvers, MA 01923, (978) 750-8400, fax (978) 750-4470, or on the web at www.copyright.com. Requests to the Publisher for permission should be addressed to the Permissions Department, John Wiley & Sons, Inc., 111 River Street, Hoboken, NJ 07030, (201) 748-6011, fax (201) 748-6008, or online at http://www.wiley.com/go/permission. Limit of Liability/Disclaimer of Warranty: While the publisher and author have used their best efforts in preparing this book, they make no representations or warranties with respect to the accuracy or completeness of the contents of this book and specifically disclaim any implied warranties of merchantability or fitness for a particular purpose. -
Using of HVDC Technology in Super Grids Ines Bula University for Business and Technology, [email protected]
University of Business and Technology in Kosovo UBT Knowledge Center UBT International Conference 2017 UBT International Conference Oct 27th, 3:00 PM - 4:30 PM Using of HVDC Technology in Super Grids Ines Bula University for Business and Technology, [email protected] Valmira Hoxha University for Business and Technology, [email protected] Edin Bula University for Business and Technology, [email protected] Follow this and additional works at: https://knowledgecenter.ubt-uni.net/conference Part of the Bioresource and Agricultural Engineering Commons Recommended Citation Bula, Ines; Hoxha, Valmira; and Bula, Edin, "Using of HVDC Technology in Super Grids" (2017). UBT International Conference. 142. https://knowledgecenter.ubt-uni.net/conference/2017/all-events/142 This Event is brought to you for free and open access by the Publication and Journals at UBT Knowledge Center. It has been accepted for inclusion in UBT International Conference by an authorized administrator of UBT Knowledge Center. For more information, please contact [email protected]. Using of HVDC Technology in Super Grids Ines Bula1, Valmir Hoxha2, Edin Bula 3 1,2,3 UBT – Higher Education Institution, Lagjja Kalabria, 10000 p.n., Prishtine, Kosovo {ines.bula, valmir.hoxha}@ubt-uni.net; [email protected], Abstract. This paper describes the HVDC system, its organization, as well as advantages over the AC system. Implementation of this system will help to make Europe sustainable energy independent which will require a renewable generation portfolio where much of this portfolio will be fueled by wind and will be developed offshore as it is presented in this paper. -
Construction Plan
Construction Plan for the Revision 1.0 June 2016 Schedule TFS-4 Page 1 of 140 Construction Plan – Rev. 1.0 June 2016 This page intentionally left blank. ii Schedule TFS-4 Page 2 of 140 Construction Plan – Rev. 1.0 June 2016 Table of Contents Section Page List of Tables ........................................................................................................................................ v List of Figures ..................................................................................................................................... vii Acronyms and Abbreviations .......................................................................................................... ix 1.0 Project Overview .................................................................................................... 1 2.0 Project Description ................................................................................................ 4 2.1 Converter Stations and Other Terminal Facilities ......................................................... 4 2.1.1 Elements Common to the Converter Stations ................................................. 4 2.1.2 Kansas Converter Station and Other Terminal Facilities ............................... 5 2.1.3 Illinois Converter Station and Other Terminal Facilities ................................ 6 2.1.4 Missouri Converter Station and Other Terminal Facilities ............................ 6 2.2 HVDC Transmission Line ................................................................................................... -
Steady-State Operation Area of VSC-HVDC Converter Station Connecting Renewable Energy Cluster by Isolated Network
E3S Web of Conferences 182, 02003 (2020) https://doi.org/10.1051/e3sconf/202018202003 CPEEE 2020 Steady-state Operation Area of VSC-HVDC Converter Station Connecting Renewable Energy Cluster by Isolated Network Wenyuan Xian1,2, Ran Ding3, Ying Qiao2,*, Zongxiang Lu2, Shangqiang Li2, and Hong Lin1 1School of Electrical Engineering, Xinjiang University, Urumqi 830047, China 2State Key Lab of Control and Simulation of Power Systems and Generation Equipment (Department of Electrical Engineering, Tsinghua University), Haidian District, Beijing 100084, China 3 State Grid Jibei Electric Power Company, Xicheng District, Beijing 100053, China Abstract. When the large-scale renewable power island is connected to VSC-HVDC transmission system, we should figure out the steady-state operation area of VSC-HVDC converter station. Based on the equivalent model of renewable energy island, the constraints of VSC-HVDC converter station are analyzed, and a fast method for calculating steady-state operation area of converter station is presented in this paper. The influence of equivalent line impedance of renewable energy island, transformer ratio of converter station and voltage setting value of grid-connected point on steady-state operation area of converter station is analyzed. And the three-dimensional view of the steady-state operation area of the converter station under different grid-connected voltage is depicted. 1 Introduction operation modes are given[6]. [7] analyzed the influence of AC network strength on the steady-state VSC-HVDC transmission technology has obvious characteristics of VSC-HVDC transmission system. [8] advantages in clean energy grid-connected, island power studied the influence of short circuit ratio of AC system, supply, offshore platform power supply and other shunt reactive compensation capacitor, converter technical fields([1],[2]). -
Copyright © 2017 IEEE
> REPLACE THIS LINE WITH YOUR PAPER IDENTIFICATION NUMBER (DOUBLE-CLICK HERE TO EDIT) < 1 Copyright © 2017 IEEE Paper published in IEEE XPlore, November 2017 Volume 105, number 11 This material is posted here with the permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of ABB’s products or services. Internal or personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution must be obtained from the IEEE by writing to [email protected]. By choosing to view this document, you agree to all provisions of the copyright laws protecting it. > REPLACE THIS LINE WITH YOUR PAPER IDENTIFICATION NUMBER (DOUBLE-CLICK HERE TO EDIT) < 2 HVDC Systems in Smart Grids Mike Barnes, Senior Member, IEEE, Dirk van Hertem, Simon P. Teeuwsen, and Magnus Callavik switch off at zero, or nearly zero, current making them Abstract— The use of DC power networks, either at high cheaper and more compact. voltage or at medium voltage, is being increasingly seen in DC machines require brushes, induction machines do not modern smart grids. This is due to the flexible control possible – an advantage in terms of robustness. Induction with DC and its ability to transmit and distribute power under machines have gone on to become a, if not the, dominant circumstance where AC networks are either unable to, or less economic. This paper provides an overview of the evolution of electrical load. High Voltage DC transmission from early Thury systems, to A. -
New Technologies in Hvdc Converter Design
NEW TECHNOLOGIES IN HVDC CONVERTER DESIGN Alf Persson Lennart Carlsson Mikael Åberg ABB Power Systems, Sweden ABB Power Systems, Sweden ABB Power Systems, Sweden 1. SUMMARY HVDC technology took a big step forward around 20 years ago when thyristor valves succeeded the mercury arc valves previously used. The converter station concept introduced at that time, however, has remained practically unchanged since then. Figure 1: Single line diagram of a monopolar station with ® The time has now come for a further major advance in CCC and ConTune AC filter. technology. The introduction of new concepts will change Consequently, many other main circuit components, in whole approach to building an HVDC station. Even though addition to the filter components, such as switching this innovation may not be quite as significant as when equipment, CTs, etc, must be installed. The filters will thyristor valves were introduced, the new features will therefore take up considerable space in a converter sta- greatly improve the operating characteristics of HVDC tion. transmissions and reduce the size and complexity of converter stations. 2.2 De-coupling of filtering and reactive power supply The new generation of converter stations is now likely to include some of the following features: The development of new, effective AC filters, described - a new type of converter circuit, the capacitor commutated in a separate section of this paper, makes it possible to converter (CCC) perform the filtering function through a single filter bank - actively tuned AC filters with small Mvar rating. The new AC filter thus allows de- - air insulated outdoor thyristor valves coupling of the functions of the filtering and the reactive - active DC filters.