xii Ë Preface
being highly inaccurate, this simple method is not even close to real conditions of
Maglev applications. To to investigate the levitation forces, guidance forces, as well
as the cross stiffness, dynamic rigidity, relaxation time, etc. of the HTS Maglev over
a PM guideway (PMG), we developed several Maglev measurement systems from
1999 to 2014. The measurement systems are different from the earlier system that
the measured HTS bulk is above the PMG. As a result, a cryogenic vessel with a
super-thin bottom is needed. To investigate HTS Maglev bearing and flywheel energy
storage technology, the HTS Maglev bearing measurement system was designed and
successfully developed in 2014. The principles, methods, structure, functions, and
specifications of the several HTS Maglev measurement systems are presented in detail
in Chapter 5. Several HTS Maglev measurement systems play an important role in the
research and development of the HTS Maglev. The subsequent chapters will present
these research results and their applications in developing the prototype of HTS
Maglev. The earlier study was carried out in the HTS Maglev measurement system
SCML-01, and according to these massive research results, the first manned HTS
Maglev test vehicle in the world, “Century”, was successfully developed on December
31, 2000. In Chapter 6, the research results and properties of the entire Maglev test
vehicle are presented in detail. After the success of the first manned HTS Maglev
vehicle, the theoretical and experimental researches of HTS Maglev are carried out
by the authors’ team unremittingly. The research results of 2D and 3D numerical
simulations of HTS Maglev in ASCLab (Applied Superconductivity Laboratory) are
presented in Chapter 7. In Chapter 8, new research progress about HTS Maglev is
presented. These include the new research results on HTS Maglev properties between
HTS bulks and PMG and the ETT HTS Maglev vehicle developed using the new results.
Research results and the experimental prototype of HTS Maglev bearing and 5-kW
h flywheel energy storage system are presented in Chapter 9. HTS Maglev launch
technology prototype system and HTS linear synchronous motors are presented in
Chapter 10. The book presents the research findings from our team of the HTS Maglev
R&D, and I wish to thank all members of our team for their hard work and selfless
dedication. We especially thank our previous graduate students Dr. Xiao-Rong Wang
of Lawrence Berkeley National Laboratory, Dr. Hong-Hai Song of Michigan State Uni-
versity, Dr. Zhong-You Ren of Siemens Shenzhen Magnetic Resonance Ltd., research
scientist He Jiang of Aerospace Science Research Institute, Dr. Min Zhu of Institute of
Electronics of Chinese Academy of Sciences, Dr. Wei Wang of Cambridge University,
Dr. Rong Zeng, Dr. Long-Cai Zhang, Dr. Lu Liu, Dr. Si-Ting Pan, and others for offering
unpublished papers or summaries of their original research work on HTS Maglev.
The birth of “Century” 16 years ago is the reason why we wrote this book. Therefore,
we would like have to thank Zhong-You Ren, He Jiang, Min Zhu, Xiao-Rong Wang,
Chang-Yan Deng, You-Wen Zeng, Qi-Xue Tang, Hi-Yu Huang, Xu-Ming Shen, and others
for their important and substantive contributions to the development of “Century”.
We are very grateful to Hong-Tao Ren and his group, the Beijing General Research
Institute for Nonferrous Metals, for providing high-quality HTS bulk materials, and