电压型CPT系统动态负载恒压输出研究  

Constant voltage output of dynamic loads in voltage-fed CPT systems

作　　者：赵志斌[1] 孙跃[1] 翟渊[1] 杨芳勋[1] 

机构地区：[1]重庆大学自动化学院,重庆400030

出　　处：《华中科技大学学报（自然科学版）》2011年第9期66-71,共6页Journal of Huazhong University of Science and Technology(Natural Science Edition)

基　　金：国家自然科学基金资助项目(50807057);重庆市科委攻关项目(2008AC3089);中央高校基本科研业务费资助项目(CDJXS11172238)

摘　　要：为解决电压型非接触电能传输(CPT)系统负载动态变化时输出电压不稳定的问题,提出了一种新的控制方法.该方法将原边串联-副边串联(SS)和原边串联-副边并联(SP)的2种电压型拓扑区别对待,前者控制原边谐振电流恒定,后者控制原边电压恒定.针对传统的原边电流恒定的控制方式,理论分析发现SP拓扑更适合用原边电压恒定的方式来控制,得到了2种拓扑的对立特性,并且证明了区别对待的必要性.仿真及实验结果表明:负载在一定范围内变化时,系统输出电压基本恒定,且原边输入功率能够根据负载需要自适应进行调节;负载动态切换时,系统能够快速稳定.Control method was proposed to overcome output-voltage-instability of voltage-fed contact- less power transfer （CPT） system on a dynamic load. SS （series compensated primary and series compensated secondary） topology and SP （series compensated primary and parallel compensated seconda- ry） topology of voltage-fed CPT system were difference in this method, the former controlled the pri- mary resonant current constant and the latter controlled the primary voltage constant. It was used to control the primary current constant to make constant voltage output, and it was found that the SP to- pology seemed more suitable to control by the primary voltage in theoretic analysis and the two topologies had opposite characteristics, so the necessity of different strategies for different topologies were proved. Simulations and experiments show that the output voltage is constant and the primary input power can make an adaptive adjustment according to the load, and the system output can be stabilized quickly in a dynamic load switch period.

关 键 词：非接触电能传输 动态负载 恒压 串联补偿 并联补偿 电压型拓扑 

分 类 号：TM74[电气工程—电力系统及自动化]