摘要
无线电能传输功率稳定性分析对其能否安全稳定工作具有重要意义。本文采用等效电路理论对串并式结构进行了研究,获取了输出功率与线圈互感之间的关系,推导出一般形状接收线圈与矩形导轨之间的互感计算公式。考虑固定负载移动供电的情况,研究了影响互感的因素,采用仿真软件得出了不同形状接收线圈与轨道之间的互感与影响互感的因素之间的关系曲线,以及功率与影响互感的因素之间的关系曲线,分析了接收线圈形状对输出功率稳定性的影响。设计了无线电能传输功率稳定性验证实验方案,搭建了实验平台,进行了实验验证。分析与实验表明,当固定负载移动供电系统工作在谐振频率,发射轨道为矩形、接收线圈面积一定时,采用正方形接收线圈传输功率的稳定性更好。
For the operation security to analyze the stability of the power transmission of wireless power transmission is of great significance. In this paper,series-parallel structure is studied by use of the equivalent circuit theory.The relationship between the output power and the mutual inductance of the rail and the receiving coil is obtained.The calculation formula of mutual inductance between the rail and the receiving coil with the general shape is derived. Considering the mobile power supply with fixed load,the effect factors for mutual inductance are analyzed.With simulation software,the relation curves between the mutual inductance,the output power and the effect factors are obtained. The influence of the shape of receiving coil on the stability of output power is acquired. The test scheme is designed and the test platform is built. The test is carried out to verify the analysis result. The analysis and the test show that when the power supply system with fixed load operates at the resonant frequency,the transmitter rail is rectangular,and the area of the receiving coil is constant,receiving coil with square shape is better to the stability of transmission power.
作者
赵靖英
周思诺
崔玉龙
李志刚
ZHAO Jing-ying;ZHOU Si-nuo;CUI Yu-long;LI Zhi-gang(School of Electrical Engineering,Hebei University of Technology,Tianjin 300130,China;School of Electrical Engineering,Beijing University of Chemical Technology,Beijing 100029,China)
出处
《电工电能新技术》
CSCD
北大核心
2018年第8期17-26,共10页
Advanced Technology of Electrical Engineering and Energy
基金
国家自然科学基金项目(E070302)
国家科技支撑计划项目(2015BAA09B00)
河北省高等学校科学技术研究项目(QN20131165)
关键词
磁耦合谐振
串并式结构
无线电能传输
耦合特性
稳定性分析
magnetic coupling resonance
series-parallel structure
wireless power transmission
coupling characteristics
stability analysis
