摘要
针对无线电动汽车的输出功率和效率问题,本文选取磁耦合谐振无线电能传输(Magnetically Coupled Resonant Wireless Power Transfer,MCR-WPT)串串式补偿结构,推导出输出功率和传输效率公式,分析了串串式的输出功率、传输效率与负载、耦合系数、频率之间的关系。利用Matlab仿真软件进行仿真,在三维图像中串串式最大效率与最大功率点不重合,且有频率分裂现象,并发现在小负载电阻下串串式的输出功率和传输效率更优。最后,设计了一套串串式磁耦合谐振系统传输装置,通过实验验证了理论分析的正确性。
Aiming at the output power and efficiency of wireless electric vehicles,this paper selects the Magnetically Coupled Resonant Wireless Power Transfer(MCR-WPT)string-string compensation structure,derives the output power and transmission efficiency formula,and analyzes the string.The relationship between output power,transmission efficiency and load,coupling coefficient,and frequency.Using Matlab simulation software to simulate,the maximum efficiency of the string type in the three-dimensional image does not coincide with the maximum power point,and there is frequency splitting phenomenon,and it is found that the string power output and transmission efficiency are better under the small load resistance.Finally,a series of series-coupled magnetic coupling resonant system transmission devices are designed,and the correctness of theoretical analysis is verified by experiments.
作者
杨世亮
汪宁
柳俊岗
卢玉飞
YANG Shi-liang;WANG Ning;LIU Jun-gang;LU Yu-fei(Tianjin Pinggao Intelligent Electric Co.,Ltd.,Tianjin 300300 China)
出处
《自动化技术与应用》
2020年第10期11-13,30,共4页
Techniques of Automation and Applications
关键词
串串式
负载
耦合系数
频率分裂
series
load
coupling coefficient
frequency splitting
