基于混杂自动机的多负载ICPT系统建模方法研究  

Research on modelling method of multi-load ICPT system based on hybrid automata

作　　者：林宝成 李若琼 LIN Baocheng;LI Ruoqiong(School of Automation and Electrical Engineering,Lanzhou Jiaotong University,Lanzhou 730300,China)

机构地区：[1]兰州交通大学自动化与电气工程学院,甘肃兰州730300

出　　处：《武汉大学学报（工学版）》2020年第8期712-720,共9页Engineering Journal of Wuhan University

基　　金：国家自然科学基金项目(编号:51767015);甘肃省科技计划(甘肃省自然科学基金资助项目)(编号:18JR3RA117)。

摘　　要：多负载ICPT系统是由一个原边发射线圈与多个副边接收线圈构成的无线电能传输系统,能够为多个负载提供电能。由于系统中存在高频逆变电路,使得系统在离散状态与连续状态间不断转换,所以该系统为典型的混杂系统,而副边接收线圈之间的耦合关系又使得建立的模型不准确。针对上述问题,本文利用LCL-S型三负载ICPT系统模型,首先对副边线圈之间的互感进行解耦,然后确定系统的离散状态并对不同离散状态下的电路工作状态进行分析,建立其状态空间模型,最后利用混杂系统理论对其连续状态与离散状态之间的切换关系进行分析,建立了三负载ICPT系统的混杂自动机模型。通过Matlab/Simulink的Stateflow工具箱搭建了仿真模型,分析了在混杂自动机控制下三负载ICPT系统的稳定性及其传输特性。The multi-load ICPT system is a radio energy transmission system composed of a primary edge emission coil and a plurality of secondary edge receiving coils,which can provide electrical energy for multiple loads.Because of the existence of high frequency inverter circuit in the system,the system is constantly converting between discrete state and continuous state,so the system is a typical hybrid system,and the coupling relationship between the secondary edge receiving coil makes the established model inaccurate.In view of the above problems,this paper uses the LCL-S three-load ICPT system model for the following researches:first of all,decoupling the mutual inductance between the secondary edge rings;then,determining the discrete state of the system and analyzing the working state of the circuit under different discrete states,and establishing its state space model.Finally,the switching relationship between the continuous state and the discrete state is analyzed by using the hybrid system theory,and the hybrid automata model of the three-load ICPT system is established.The simulation model is constructed by using the Stateflow Toolbox of Matlab/Simulink,and the stability and transmission characteristics of the three-load ICPT system under the control of hybrid automata are analyzed.

关 键 词：多负载 ICPT系统 混杂系统 混杂自动机 稳定性 STATEFLOW 

分 类 号：TM132[电气工程—电工理论与新技术]