基于Buck电路的WPT系统传输效率优化技术研究  

Research on optimization technology of WPT system transmission efficiency based on Buck circuit

作　　者：季文博 JI Wenbo(China Coal Research Institute Co.,Ltd.,Beijing 100013,China;Engineering Research Center of Coal Mines Emergency Technology Equipment,Beijing 100013,China;Beijing Mine Safety Engineering Technology Research Center,Beijing 100013,China;State Key Laboratory of Intelligent Coal Mining and Strata Control,Beijing 100013,China)

机构地区：[1]煤炭科学技术研究院有限公司,北京100013 [2]煤矿应急避险技术装备工程研究中心,北京100013 [3]北京市煤矿安全工程技术研究中心,北京100013 [4]煤炭智能开采与岩层控制全国重点实验室,北京100013

出　　处：《电子设计工程》2025年第8期183-187,共5页Electronic Design Engineering

摘　　要：针对WPT系统负载的不稳定、传输位置和距离的变化等不可避免地会造成传输电压的波动和传输效率降低的问题,设计了一套双边DSP控制的WPT系统。系统设计了一种Buck电路,通过改变占空比实现阻抗匹配,从而保证系统的电压稳定并保持高效的传输效率。Buck电路通过对占空比的改变实现等效输入阻抗的调节,从而达到阻抗匹配,提升系统性能。通过仿真验证,改变占空比能够实现阻抗匹配,从而保证系统输入输出功率的稳定,使系统工作效率维持在91.6%左右,证明了系统能够达到稳定传输效率的作用,设计系统达到了预期的功能要求。A double-sided DSP controlled WPT system has been designed to address the issues of unstable load,changes in transmission position and distance,which inevitably cause fluctuations in transmission voltage and reduced transmission efficiency in the WPT system.The system has designed a Buck circuit that achieves impedance matching by changing the duty cycle,ensuring voltage stability and maintaining efficient transmission efficiency.The Buck circuit adjusts the equivalent input impedance by changing the duty cycle,thereby achieving impedance matching and improving system performance.Through simulation,changing the duty cycle can achieve impedance matching,ensuring the stability of the system’s input and output power,and maintaining the system’s efficiency around 91.6%.This proves that the system can achieve stable transmission efficiency,and the designed system meets the predetermined functional requirements.

关 键 词：WPT 效率优化 BUCK电路 占空比 软件仿真 

分 类 号：TN7[电子电信—电路与系统]