标题：Design of Three-phase PWM Converter in the Battery Pack Testing System Using Fractional-Order Control
作者：Ding, Wenlong; Duan, Bin; Li, Yan; Liu, Jiajun; Zhang, Chenghui
作者机构：[Ding, Wenlong; Duan, Bin; Li, Yan; Liu, Jiajun; Zhang, Chenghui] Shandong Univ, Sch Control Sci & Engn, Jinan 250061, Peoples R China.
会议名称：8th IEEE International Power Electronics and Motion Control Conference (IPEMC-ECCE Asia)
会议日期：MAY 22-26, 2016
来源：2016 IEEE 8TH INTERNATIONAL POWER ELECTRONICS AND MOTION CONTROL CONFERENCE (IPEMC-ECCE ASIA)
关键词：fractional order control; robust; adaptive; three phase PWM converter;; battery pack testing system
摘要：The rapid development of power battery technology puts forward more strict requirements of testing systems, particularly the transient performance for the charge and discharge processes. The three-phase PWM converter is mostly used in the front of the battery testing system to ensure the stability of input voltage for DC/DC converter. However, conventional PI (Proportional, Integral) controller has limited control gain at the frequency of interest and its tuning parameters are sensitive to the changes of system parameters. Therefore, in this paper, the fractional order control algorithm is studied and applied to the three-phase PWM converter. First, a mathematical model of converter with an inductive filter is established. An optimized fractional order PI (FOPI) controller is designed by evaluating accurate performance index. The controller design procedures are given in detail. The analysis and simulation results show that the system response using fractional order control has better dynamic performance and stronger robustness fairly compared with using conventional integer order controllers, and is adaptive to model uncertainties.