面向智能网关的无线电能传输系统数据驱动建模与控制  

Data‑driven modeling and control of wireless energy transfer system for smart gateway

作　　者：李帅奇 邓其军[1] 李仲斌 罗嘉林 陈文沁 刘志勇[1] LI Shuaiqi;DENG Qijun;LI Zhongbin;LUO Jialin;CHEN Wenqin;LIU Zhiyong(School of Electrical Engineering and Automation,Wuhan University,Wuhan 430072,China;China Southern Power Grid Digital Grid Research Institute Co.,Ltd.,Guangzhou 510799,China)

机构地区：[1]武汉大学电气与自动化学院,湖北武汉430072 [2]南方电网数字电网研究院有限公司,广东广州510799

出　　处：《武汉大学学报（工学版）》2024年第8期1160-1168,共9页Engineering Journal of Wuhan University

摘　　要：针对高压输电线路上智能网关设备的无线电能传输系统在安装时或运行一段时间后可能发生模型失配从而导致系统控制性能下降的问题,提出了一种基于数据驱动建模的内模控制器设计方法,以更新控制器参数并优化控制效果。该方法利用系统的输入输出数据获得传递函数模型,避免了传统机理建模方法中对部件参数进行精确测量的需求。针对数据采集过程中的无线通信时延问题,提出一种低成本的时延测量方案,获得了系统的时延模型,并基于此设计了控制器参数。此外,进一步分析了内模控制器性能,讨论了控制器参数λ对控制器控制效果的影响。实验结果表明:通过模型参数和评估时延的匹配,模型能够准确描述系统动态性能;其次,在内模控制器参数λ选取合适的情况下,当负载电阻值、直流输入电压、控制器参考值发生变化时,系统输出均能调整至设定值,且调节时间均在30 ms以内,具有良好的动态特性。In order to solve the problem that in the wireless power transfer(WPT)system of smart gateway equipment on high-voltage power transmission line,the degradation of the system control performance due to model mismatch may occur during installation or after a certain period of work,a design method of internal model controller based on data-driven modeling is proposed to update the controller parameters and optimize the control effect.It uses the system's input-output data to obtain the transfer function model,avoiding the need for precise measurement of component parameters required by traditional mechanistic modeling methods.To address the issue of wireless communication delay during the data collection process,this paper proposes lowcost delay measurement scheme,obtains the system delay model,and designs the controller parameters based on this model.In addition,the article further analyzes the performance of the internal model controller,and discusses the influence of the internal model controller parameter λ on the control effect of the controller.The experimental results show that the model can accurately reflect the dynamic performance of the system through the matching of the model parameters and the evaluation time delay.Secondly,if the internal model controller parameterλis selected appropriately,when the load resistance value,DC input voltage,or reference value of the controller changes,the system output can be adjusted to the set value,and the adjustment time is within 30 ms,and the system has good dynamic characteristics.

关 键 词：无线电能传输 系统辨识 内模控制 智能网关 最小二乘 

分 类 号：TM762[电气工程—电力系统及自动化]