摘要
感应式无线电能传输系统在超出一定负载范围时,将进入断续工作模式,基于基波近似法得到与负载无关的输出增益特性将不再满足,本文针对S-CLC型复合补偿拓扑,采用谐波分析法建立系统数学模型,给出整流侧电压/电流的谐波表达式,揭示波形发生畸变断续的主要原因。针对该补偿拓扑带载能力弱,提出了一种通过增加反向输入阻抗的高次谐波比例来提高输出增益的负载敏感度。搭建样机进行实验,结果验证了理论分析的正确性。
The inductive power transfer system can easily enter a discontinuous conduction mode when beyond a certain load range.The first harmonic approximation analysis method and the load-independent output property are no longer applicable.This paper presents a harmonic analysis method to reveal the main reason for the IPT system with S-CLC compensation to enter DCM operation.By establishing mathematical model to give the harmonic expressions of diode rectification circuit input waveforms.A solution by increasing the reverse input impedances at some higher order harmonic frequencies is also suggested to extend the load range against DCM operation.The experiment results verify the correctness of the theoretical analysis.
作者
景妍妍
王创
蔡晓敏
韩燕
Jing Yanyan;Wang Chuang;Cai Xiaomin;Han Yan(College of Electrical Engineering,Tongda College of Nanjing University of Posts and Telecommunications,Yangzhou Jiangsu,225127;Power Service Command Center,State Grid Yangzhou Power Supply Company,Yangzhou Jiangsu,225009)
出处
《电子测试》
2021年第7期55-57,70,共4页
Electronic Test
基金
南京邮电大学通达学院“课程思政”教育教学改革研究专项课题(JG20420032)。
关键词
感应式无线电能传输
断续工作模式
谐波分析法
inductive power transfer
discontinuous conduction mode
harmonic analysis method
