双LCL拓扑ICPT系统恒频恒流稳压特性研究  

Characteristic Research of ICPT System Based on Double LCL Structure for Achieving Constant Frequency,Constant Current and Stable Voltage Output

作　　者：夏晨阳[1] 邵祥[1] 李玉华[1] 林克章[1] 谷志鹏 赖娜[1] 周诗杰[2] 

机构地区：[1]中国矿业大学江苏省煤矿电气与自动化工程实验室,江苏徐州221008 [2]美国密歇根大学工程学院

出　　处：《四川大学学报（工程科学版）》2016年第3期156-163,共8页Journal of Sichuan University (Engineering Science Edition)

基　　金：国家自然科学基金资助项目(51307173);江苏省自然科学基金资助项目(BK20130188);高等学校博士学科点专项科研基金资助项目(20120095120022);江苏省煤矿电气与自动化工程实验室建设项目资助(2014KJZX05);江苏省普通高校研究生实践创新计划资助项目(SJLX15_0695)

摘　　要：针对负载动态变化及切换易造成感应耦合电能传输(ICPT)系统频率失谐和负载输出电压变化的问题,基于双LCL拓扑电路,提出一种实现原边线圈中电流幅值恒定、负载端稳压输出并保证工作频率稳定性的设计方法。首先分析拾取侧LCL拓扑电路的恒压特性,结合ICPT系统拾取端反射阻抗呈阻容性且容性部分与负载变化无关这一特点,提出两种原边补偿电路设计思路,同时在此基础上分析了原边LCL拓扑实现原边线圈恒流工作的特性条件。然后给出了双LCL拓扑ICPT系统同时实现原边线圈电流恒定、负载端电压稳定、工作频率稳定的总体条件,并分析了主要参数对系统性能的影响。最后,通过仿真和实验结果证明了理论分析方法的正确性。In order to maintain the system frequency and output vohage stability with the dynamic varying load in inductive coupled power transfer （ICPT） system,a new method was proposed based on the double LCL topology to realize constant primary current and stabilized load output voltage as well as stabilized operating frequency. Firstly, the stable voltage characteristics of the pickup side was described in details. Then, two approaches of designing the primary coin in ICPT system were proposed, which considered the characteris- tics that the reflected impedance is characterized by capacitance-resistance and the capacitive portion is unrelated to the dynamic varying load. At the same time, the constant current characteristics of ICPT system was analyzed based on LCL topology in primary side. Besides, general conditions were given to realize constant operating frequency, constant current and stable output voltage. Moreover, the influence of major parameters on the performance was analyzed. Finally, the validity of theoretical analysis was verified by the simulation and experiments.

关 键 词：感应耦合电能传输 LCL拓扑 恒频 恒流 稳压 

分 类 号：TM74[电气工程—电力系统及自动化]