重庆大学学报：自然科学版2012，Vol.35Issue(10)：117-123,7.
LCL型双向感应电能传输系统建模及控制
Modeling and control of An LCL bi-directional inductive power transfer system
摘要
Abstract
Since there exist high-frequency switching networks and complicated operating modes in bi-directional inductive power transfer (IPT) system, it is easy to result in high harmonics and EMI interference. An LCL filter network is introduced to effectively filter out the unwanted harmonics in track current and reduce EMI interference. Based on a mathematical model of the power transmission established by complex analysis of the AC variables, under the condition of maximum transmission efficiency, the phase angle differences between the primary input voltage and secondary output voltage Uso are ±90° and the energy is respectively transferred in forward or backward direction. Moreover, the power magnitude can be controlled by adjusting the modulus of Upi and Uso. In addition, to keep the track current constant, different phase-shifting control strategies are designed in the primary and secondary parts. Simulation and experimental results show that these strategies can not only adjust track current to keep constant but also dynamically change the direction and magnitude of power transmission according to the working conditions and actual needs of the system load to improve the system operating efficiency.关键词
感应电能传输/双向/LCL滤波/移相控制Key words
inductive power transfer/bi-directional/LCL filter/phase-shifting control分类
信息技术与安全科学引用本文复制引用
李砚玲,孙跃,戴欣,周继坤..LCL型双向感应电能传输系统建模及控制[J].重庆大学学报：自然科学版,2012,35(10):117-123,7.基金项目
国家自然科学基金资助项目 （）
中央高校基本科研业务费资助项目 （）
教育部博士点专项科研基金资助项目（20090191110021）. （）
