基于混杂自动机的双向ICPT系统建模及控制  

Modeling and control of bidirectional ICPT system based on hybrid automata

作　　者：李欣 徐积强 LI Xin;XU Jiqiang(School of New Energy and Power Engineering,Lanzhou Jiaotong University,Lanzhou 730070,China;School of Automation&Electrical Engineering,Lanzhou Jiaotong University,Lanzhou 730070,China)

机构地区：[1]兰州交通大学新能源与动力工程学院,甘肃兰州730070 [2]兰州交通大学自动化与电气工程学院,甘肃兰州730070

出　　处：《电力自动化设备》2022年第4期107-113,共7页Electric Power Automation Equipment

基　　金：国家自然科学基金资助项目(51767015);兰州交通大学“天佑创新团队”支持计划资助项目(TY202009);兰州交通大学-天津大学联合创新基金资助项目(2019051)。

摘　　要：针对双向感应耦合电能传输(ICPT)系统的混杂特性及移相控制方法下系统启动、不同功率传输模式切换时电流波动大的问题,分析了双LCC型补偿拓扑双向ICPT系统的拓扑特性,给出了双向ICPT系统变换器运行的各工作模态。基于混杂自动机理论建立了双向ICPT系统的混杂自动机模型,推导了系统在不同工作模态下的状态空间方程,并根据系统连续状态量与各工作模态间的关系,确定了系统不同工作模态发生切换的边界条件。在此基础上,将双向ICPT系统的控制问题转化为系统离散状态模式边界条件的选择问题,设计了系统混杂控制策略。最后基于MATLAB/Simulink搭建系统仿真模型,验证了模型的正确性和所提控制方法的可行性。与传统移相控制策略进行对比,所提方法有效改善了系统启动及不同功率传输模式切换时的电流波动现象,有利于双向ICPT系统的稳定运行。In view of the hybrid characteristics of bidirectional ICPT(Inductively Coupled Power Transfer)system and the problem of large current fluctuation during the system startup with the phase-shift control method and the switching between different power transmission modes,the topology characteristics of bidirectional ICPT system with dual LCC-typed compensation topology is analyzed,and each operating mode of bidirectional ICPT system converters is given.Based on the theory of hybrid automata,a hybrid automata model of bidirectional ICPT system is established.The state space equations of the system under different operating modes are derived.According to the relationship between continuous state variables and operating modes,the boundary conditions for switching between different operating modes are determined.On this basis,the control problem of bidirectional ICPT system is transformed into the problem of selecting boundary conditions of system discrete state modes,and a hybrid control strategy is designed.Finally,the system simulation model is built based on MATLAB/Simulink to verify the correctness of the modeling and the feasibility of the proposed control strategy.Compared with the traditional phase-shift control strategies,the proposed method can effectively improve the current fluctuation phenomenon during system startup and switching of different power transmission modes,which is conducive to the stable operation of bidirectional ICPT system.

关 键 词：双向感应耦合电能传输系统 LCC型补偿 混杂系统 混杂自动机 建模与控制 

分 类 号：TM92[电气工程—电力电子与电力传动]