Manuscript received July 20, 2016; revised October 29, 2016 and December 20, 2016; accepted January 27, 2017. Date of publication February 1, 2017; date of current version October 3, 2017. This work was supported in part by the National Natural Science Foundation of China under Grant 71331001, Grant 71420107027, and Grant 91547113, in part by the Science and Technology Projects of Hunan Province and Changsha City (2016WK2015, kh1601186), and in part by the Science and Technology projects of China Southern Power Grid under Grant WYKJ00000027. Paper no. TII-16-0727. (Corresponding author: J. Qiu.) H. Yang, S. Zhang, D. Qiu, and M. Lai are with the Hunan Provincial Engineering Research Center of Electric Transportation and Smart Distribution Network, Hunan Provincial Key Laboratory of Smart Grids Operation and Control, School of Electrical and Information Engineering, Changsha University of Science and Technology, Changsha 410114, China (e-mail: yhm5218@hotmail.com; zshwts10@163.com; qiuduoduo13@hnu.edu.cn; laimingyong0731@hotmail.com).
