三线圈结构的无线电能传输系统优化设计与分析  

Optimal Design and Analysis of Wireless Power Transmission System with Three Coils Structure

作　　者：周斌[1,2] 谭林林 解蕙茹[3] 陈良亮 ZHOU Bin;TAN Linlin;XIE Huiru;CHEN Liangliang(NARI Technology Development Co.,Ltd.,Nanjing,Jiangsu 211106,China;NARI Group Corporation,Nanjing,Jiangsu 211106,China;Southeast University,Nanjing,Jiangsu 210096,China)

机构地区：[1]国电南瑞科技股份有限公司,江苏南京211106 [2]南瑞集团有限公司,江苏南京211106 [3]东南大学,江苏南京210096

出　　处：《广东电力》2018年第11期92-99,共8页Guangdong Electric Power

基　　金：国家电网公司总部科技项目;国家重点研发计划项目(2018YFB0106300)

摘　　要：针对增大或提高传输距离固定的无线电能传输系统的传输功率和系统效率问题,提出一种三线圈(含中继线圈)结构的无线电能传输系统综合优化分析方法。根据系统的精确建模分析,寻求系统最大功率和效率的阻抗匹配条件,通过不断变换中继线圈参数(匝数、位置),在满足阻抗匹配的条件下建立负载接入系统时最大理论功率或最大理论效率点的集合。在此基础上,根据系统的功率、效率、负载等实际需求约束,在集合中优化寻找最优的系统传输效率和功率,实现对系统传输效率和功率的优化。理论分析和实验均证明了该方法的正确性和有效性。Aiming at the problem of increasing and improving transmission power and system efficiency of the wireless power transmission （WPT） system with fixed transmission distance, this paper presents a kind of comprehensive optimal analysis method for the WPT system with three coils （ including repeating coil） structure. According to precise modeling analysis for the system, this method can seek for impedance matching condition of the maximum power and efficiency of the system, and by continuously changing parameters such as numbers of turns and position of the repeating coil, it can establish the set of the maximum theoretical power point or the maximum theoretical efficiency point as load accessing to the system under the condition of satisfying impedance matching. On this basis, this method seeks for the optimal system transmission power and efficiency in the set according to actual requirement constraints including system power, efficiency and load, and realizes op- timization on transmission efficiency and power. Theoretical analysis and experiments have proved accuracy and effectiveness of this method.

关 键 词：阻抗匹配 中继线圈 联合优化 无线电能传输 

分 类 号：TM724[电气工程—电力系统及自动化]