基于失谐的无线电能传输系统抗偏移性研究

秦伟; 张文杰; 吝伶艳; 宋建成; 田慕琴; 乔玮

秦伟,张文杰,吝伶艳,宋建成,田慕琴,乔玮.基于失谐的无线电能传输系统抗偏移性研究[J].电测与仪表,2022,59(3):32-37.
Qin Wei,Zhang Wenjie,Lin Lingyan,Song Jiancheng,Tian Muqin,Qiao Wei.Research on anti-misalignment of wireless power transfer systembased on detuning[J].Electrical Measurement & Instrumentation,2022,59(3):32-37.

基于失谐的无线电能传输系统抗偏移性研究

Research on anti-misalignment of wireless power transfer systembased on detuning

DOI：10.19753/j.issn1001-1390.2022.03.005

中文关键词: 无线电能传输系统磁耦合机构补偿网络失谐抗偏移性

英文关键词:wireless power transfer system, magnetic coupling mechanism, compensation network, detuning, anti-misalignment performance

基金项目:国家自然科学基金项目（ 51577123）

作者中文名	作者英文名	单位
秦伟	Qin Wei	太原理工大学煤矿电气设备与智能控制山西省重点实验室
张文杰	Zhang Wenjie	太原理工大学煤矿电气设备与智能控制山西省重点实验室
吝伶艳	Lin Lingyan	太原理工大学煤矿电气设备与智能控制山西省重点实验室
宋建成	Song Jiancheng	太原理工大学煤矿电气设备与智能控制山西省重点实验室
田慕琴	Tian Muqin	太原理工大学煤矿电气设备与智能控制山西省重点实验室
乔玮	Qiao Wei	太原理工大学煤矿电气设备与智能控制山西省重点实验室

摘要点击次数: 2097

中文摘要:

针对无线电能传输系统磁耦合机构两侧偏移引起输出功率大幅度波动的问题,文中提出了一种基于失谐的补偿网络参数和结构的优化方法,以提高输出功率的抗偏移性。首先,根据极值点导数为零且函数为最大值的数学思想,使额定工作点对应极值点,在此基础上分析发现了SS补偿拓扑的补偿参数和输出功率抗偏移性之间的规律；其次,针对于欠补偿的串联补偿方式,设计了PS/S的补偿结构,减少了无功功率的输入,可实现输入阻抗零相角或软开关。最后,采用圆形线圈结构,搭建了传输距离为100mm,额定输出功率为1000W的实验样机验证了提出的优化方法的有效性和失谐参数与抗偏移性之间规律的正确性。磁耦合机构发生横向偏移100mm,对应互感从80.2μH减小为62.7μH。实验结果表明,使用所提优化方法,在一定的偏移范围内,有效地减缓了输出功率随互感的变化,提高了系统的运行性能。

英文摘要:

In order to solve the problem that the output power fluctuates greatly due to the misalignment of the both sides of magnetic coupling mechanism in the wireless power transfer system, an optimization method of parameters and structure of compensation network based on detuning was proposed to improve the anti-misalignment performance of output power. Firstly, according to the mathematical idea that the derivative is zero and the function is the maximum value in the extreme point, the rated working point corresponds to the extreme point. On this basis, the law between the compensation parameters of SS compensation topology and the anti-misalignment of output power was analyzed and summarized. Secondly, for the series compensation mode of under compensation, the PS/ S compensation structure was designed to reduce the input of reactive power and realize zero phase angle of the input resistance or soft switching. Finally, an experimental prototype of a transmission distance of 100mm with a circular coil structure and a rated output power of 1000W was built to verify the effectiveness of the proposed optimization method and correctness of the law between detuning parameters and anti misalignment. The corresponding mutual inductance decreased from 80.2μH to 62.7μH when the magnetic coupling mechanism had a horizontal misalignment of 100mm. Experimental results showed that the proposed optimization method can effectively slow down the change of output power with mutual inductance and improve the running performance of the system.

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