作者机构：
[李欣然; 陈鸿琳] College of Electrical and Information Engineering, Hunan Univ, Changsha, Hunan, 410082, China;[陈国民] School of Mechanical and Electrical Engineering, Hunan City Univ, Yiyang, Hunan, 413000, China;[冷华] Electrical Research Institute of State Grid Hunan Electric Power Company, Changsha, Hunan, 410007, China
通讯机构：
College of Electrical and Information Engineering, Hunan Univ, Changsha, Hunan, China
