Active Control of Large-Scale Offshore Wind Farms Connected Via VSC-HVDC

This book provides a detailed study of the active control methods for large-scale offshore wind farms connected via flexible high-voltage direct current (VSC-HVDC) transmission systems. Firstly, it introduces the basic structure and fundamental control of offshore wind farms connected via VSC-HVDC systems, and proposes a vector modeling method for them. Furthermore, it analyzes the fault characteristics of offshore wind farms connected via VSC-HVDC systems under different fault conditions, and proposes an active fault suppression method based on energy control. Finally, it introduces the method of offshore wind farms connected via VSC-HVDC systems to support the grid frequency. From basic concepts to self-active safety control, and then to active support control of the grid, this book systematically introduces the active control methods of large-scale offshore wind farms connected via VSC-HVDC systems. In particular, it introduces some advanced control methods from the perspective of energy. This book is a useful reference for undergraduate and graduate students interested in offshore wind farms and VSC-HVDC, researchers studying fault ride-through and active frequency support of offshore wind farms connected via VSC-HVDC systems, as well as engineers.

Dr. Wei Yao received the B.S. and Ph.D. degrees in electrical engineering from the Huazhong University of Science and Technology (HUST), Wuhan, China, in 2004 and 2010, respectively. From 2010 to 2012, he was a Postdoctoral Researcher with the Department of Power Engineering, HUST and a Postdoctoral Research Associate with the Department of Electrical Engineering and Electronics, University of Liverpool, Liverpool, U.K., from 2012 to 2014. He is currently a Professor with the School of Electrical and Electronics Engineering, HUST.

He focuses on the research of stability analysis and control of AC/DC power systems with high proportion of renewable energy. His research interests include power system stability analysis and control, renewable energy, HVDC and DC Grid, and application of artificial intelligence in Smart Grid. He has successively led over 40 research projects, including 5 National Natural Science Foundation projects and 1 National Key R&D Program project. He has published over 240 SCI/EI papers, including more than 90 papers as the first/corresponding author (including 3 ESI Hot Paper and 18 Highly Cited Papers), with an H-index of 35. Dr. Yao has been granted over 40 patents and has authored 5 software copyrights. He was selected as a "Highly Cited Researcher in China" by Elsevier for three consecutive years from 2021 to 2023, and was also ranked among the "Top 100,000 Scientists in the World" by the Global Scholarly Database. Additionally, he was recognized as one of the "Top 2% Scientists in the World" by Stanford University. He serves as an editorial board member or associate editor for 10 SCI/EI journals.

Hongyu Zhou received the B.S. degree in electrical engineering from Southwest Jiaotong University, Chengdu, China, in 2020. He is currently working toward the Ph.D. degree in electrical engineering with the Huazhong University of Science and Technology, Wuhan, China.

He focuses on the research of Stability analysis and control of large-scale renewable energy grid integration systems. His research interests include Renewable energy, LCC/VSC HVDC, offshore wind power, fault ride-through. Mr. Zhou has led or participated in 5 research projects, including National Natural Science Foundation projects and National Key R&D Program projects. He has published over 30 SCI/EI papers, including more than 10 SCI papers as the first/corresponding author (including 1 ESI Hot Paper and 2 Highly Cited Paper), and has been granted more than 10 patents. He serves as an independent reviewer for 8 SCI/EI journals.

Dr. Yongxin Xiong received B.S. and Ph.D. degrees in electrical engineering from the Huazhong University of Science and Technology (HUST), Wuhan, China, in 2017 and 2022, respectively. From 2022 to 2024, he was a Postdoctoral Researcher with the Energy Department, at Aalborg University, Aalborg, Denmark. Since 2024, he has been a Postdoctoral Researcher with the Department of Electrical and Electronic Engineering, at the Hong Kong Polytechnic University, Hong Kong, China.

He focuses on the research of stability analysis and control of AC/DC power systems with a high proportion of renewable energy. His research interests include power system stability analysis and control, renewable energy, HVDC and DC Grid, and the coordination of control and system protections in grid-following and grid-forming VSC-connected systems. Dr. Xiong has published over 20 SCI/EI papers, including over 10 papers as the first/corresponding author (including 1 Highly Cited Paper). He served as the Guest Editor-in-Chief of Frontiers in Energy Research, and the reviewer for IEEE Transactions on Industrial Electronics, IEEE Transactions on Power Systems, and IEEE Transactions on Power Delivery.

Dr. Jinyu Wen received the B.S. and Ph.D. degrees in electrical engineering from the Huazhong University of Science and Technology (HUST), Wuhan, China, in 1992 and 1998, respectively. From 1996 to 1997, he was a Visiting Student with the University of Liverpool, Liverpool, U.K., where he was a Research Fellow from 2002 to 2003. In 2010, he was a Senior Visiting Researcher with the University of Texas at Arlington, Arlington, TX, USA. From 1998 to 2002, he was a Director Engineer with XJ Electric Co. Ltd., Xuchang, China. In 2003, he joined HUST, where he is currently a Professor with the School of Electrical and Electronics Engineering. His research interests include renewable energy integration, energy storage, and multi-terminal HVDC and power system operation and control.

His research interests include renewable energy integration, energy storage, and multi-terminal HVDC and power system operation and control. He has been devoting to use new technologies including energy storage and flexible HVDC to improve the power system stabilities and to integrate large scale renewable energy into power system. He successfully developed China's first mobile direct-cooling high temperature superconducting magnetic energy storage system, proposed lots of new DC converter topologies and their active control technologies such as MMC plus, DC autotransformer and active converter, some of them have been applied in ultra-high voltage hybrid multi-terminal DC transmission projects of Kunliulong, and Baihetan-Jiangsu et al. He has published more than 300 academic papers, more than 10 of them are high cited papers, obtained more than 70 Chinese patents and 4 US and Europe patents.