磁耦合谐振式无线电能传输系统的无模型自适应控制研究  

Research on model-free adaptive control of magnetically coupled resonant wireless power transfer system

作　　者：王胜 高远[1,2] 王月武 WANG Sheng;GAO Yuan;WANG Yuewu(School of Automation,Guangxi University of Science and Technology,Liuzhou 545616,China;Guangxi Key Laboratory of Automobile Component and Vehicle Technology(Guangxi University of Science and Technology),Liuzhou 545616,China)

机构地区：[1]广西科技大学自动化学院,广西柳州545616 [2]广西汽车零部件与整车技术重点实验室(广西科技大学),广西柳州545616

出　　处：《广西科技大学学报》2024年第1期70-75,共6页Journal of Guangxi University of Science and Technology

基　　金：广西自然科学基金项目(2014GXNSFBA118284);广西科技大学博士基金项目(校科博21Z19)资助。

摘　　要：为解决磁耦合谐振式无线电能传输(magnetically coupled resonant wireless power transfer, MCR-WPT)系统因频率失谐而使得传输效率降低的问题,提出一种无模型自适应频率跟踪方法。该方法以发射端电流和电压间的相位差值为控制器输入,以控制器输出来调控发射端的交流电源频率;控制器设计不依赖于系统的精确数学模型,而且可通过伪雅可比矩阵的自适应估计律来提高应对发射端频率失谐的控制自适应性。MCRWPT系统的控制仿真结果表明,相比传统的PI控制,该方法不仅在较长的无线传输距离情况下能实现维持系统发射端的谐振工作状态,而且具有更好的谐振频率跟踪性能,对保持较高的系统无线电能传输效率具有明显优势。A model-free adaptive frequency tracking method is proposed to solve the problem that the transmission efficiency of the magnetically coupled resonant wireless power transmission system(MCR-WPT)is reduced due to frequency mismatch.With this method,the phase difference between the current and voltage at the transmitter is used as the controller input,and the output of the controller is used to regulate the frequency of the AC power supply at the transmitter;the design of the controller does not depend on the precise mathematical model of the system,and the adaptive estimation law of pseudo Jacobian matrix can be used to improve the control adaptability against frequency dissonance at the transmitter.The simulation results of the control of MCR-WPT system show that this method can not only maintain the resonant working state of the transmitting end of the system in the case of a longer wireless transmission distance,but also has a better resonant frequency tracking performance compared with the traditional PI control,which has great advantages in maintaining efficient system wireless power transmission.

关 键 词：磁耦合谐振式无线电能传输(MCR-WPT) 传输效率 频率跟踪 无模型自适应控制 

分 类 号：TM724[电气工程—电力系统及自动化] TP273.2[自动化与计算机技术—检测技术与自动化装置]