... Reliability Analysis of a Power System Based on the Multi-State System Theory Chunyang LI College of Mechatronics Engineering and Automation National University of Defense Technology Changsha, ... defines the power system and the batteries are binary, but they are all multi-state actually. The performance of the batteries can degrade, which results in performance degradation of the power ... Changsha, 410073, China E-mail: lichunyang.nudt@163.comXun CHEN, Xiaoshan YI College of Mechatronics Engineering and Automation National University of Defense Technology Changsha, 410073, China...