电机与控制应用2026，Vol.53Issue(8)：754-764,11.DOI:10.12177/emca.2026.201
基于PSO-LADRC的LCC-S型无线电能传输系统副边Buck变换器控制研究
Control of Secondary-Side Buck Converter in LCC-S Wireless Power Transfer System Based on PSO-LADRC
摘要
Abstract
[Objective]To address the application requirements of unidirectional wireless power transfer(WPT)systems-including simplified receiver-side structure,cost-effective implementation,reliable operation,and fast load-side voltage stabilization-this study targets the decline in output stability of LCC-S WPT systems under coil misalignment,load variations,and rectifier-side input disturbances.A particle swarm optimization-based linear active disturbance rejection control(PSO-LADRC)strategy is proposed to enhance dynamic and anti-disturbance performance.[Methods]Based on the transmission characteristics of the LCC-S WPT system,a small-signal model of the secondary-side Buck converter was established.A secondary-side closed-loop controller comprising a linear extended state observer and a linear state error feedback law was constructed to realize the online estimation and compensation of the total disturbance.Furthermore,a multi-performance index objective function was formulated,and PSO was employed to optimize the key parameters of LADRC,thereby enhancing the overall control performance of the system.[Results]Experiments indicated that the output voltage was stabilized around 20 V under coil misalignments of 0,2 cm,and 5 cm.When the reference voltage was stepped from 20 V to 15 V,the settling time of PSO-LADRC was 2 ms,which was only one-third of that of conventional LADRC.During the load step change from 15 Ω to 30 Ω,the settling time was reduced from 1.0 ms to 0.8 ms,and the overshoot was decreased from 2.2％to 1.9％.[Conclusion]The proposed PSO-LADRC strategy in this paper effectively addresses the issues of output voltage fluctuation and poor robustness in the secondary-side Buck converter of the LCC-S WPT system,providing technical support for the engineering application of high-performance WPT systems.关键词
无线电能传输/LCC-S型/粒子群优化线性自抗扰控制/Buck变换器Key words
wireless power transfer/LCC-S/particle swarm optimization-based linear active disturbance rejection control/Buck converter分类
信息技术与安全科学引用本文复制引用
金宇航,颜建虎,李唯一,王明玉..基于PSO-LADRC的LCC-S型无线电能传输系统副边Buck变换器控制研究[J].电机与控制应用,2026,53(8):754-764,11.基金项目
国家自然科学基金(52302454)National Natural Science Foundation of China(52302454) （52302454）
