电流型松散耦合电能传输系统的建模分析  

Modeling Analysis of Inductively Coupled Power Transfer Systems Based on Current Source Resonant Converter

作　　者：马皓[1] 周雯琪[1] 

机构地区：[1]浙江大学电气工程学院,杭州310027

出　　处：《电工技术学报》2005年第10期66-71,共6页Transactions of China Electrotechnical Society

摘　　要：在介绍了松散耦合电能传输(ICPT)系统的基本概念和结构的基础上,对其特性进行了一些讨论,利用互感模型提出了一种对电流型ICPT系统建模的方法。由等效电路图,经过合理的近似和等效变换,对该系统进行了建模分析,并基于Steinmetz方程,对变压器的损耗进行了一些探讨,该模型可以用来较为精确地估算系统容量、输出电压、谐振频率等。最后通过实验进行了验证。The generalized model of an inductively coupled power transfer（ICPT） system, which could transfer power efficiently, is built to predict the output power, output voltage and the resonant frequency of the system. The basic concept and structure of ICPT systems is described and a current source push-pull resonant converter for ICPT is presented. Some characteristics of the ICPT system are discussed as well. Different from the usual magnetizing and leakage inductance model of the transformer, the equivalent circuit model is built with mutual inductance concept. A brief loss analysis based on Steinmetz equation is given to explain the difference between the predicted and measured values. Based on this model, equations are obtained to calculate the output power, voltage and resonant frequency, which are finally verified by experimental results. The experimental results show that, with the loss considered in the model, the theoretical values are in good agreement with the practical results.

关 键 词：松散耦合电能传输 建模 谐振变换器 

分 类 号：TM46[电气工程—电器]