**Author details**

Jun Zhou

Department of Control Engineering, School of Energy and Electrical Engineering, Hohai University, Nanjing, China

\*Address all correspondence to: katsura@hhu.edu.cn

© 2019 The Author(s). Licensee IntechOpen. This chapter is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/ by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
