Maximum Efficiency Tracking Control for Magnetic Resonant Coupling Based Wireless Power Transfer System

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摘要:

耦合共振无线电能传输系统发射端与接收端距离小于某一特定值时,共振频率将发生变化,传输效率将大大降低.为了保持接收端实时以最大效率运行,本文提出一种耦合共振无线电能传输最大效率跟踪控制方法.该方法根据耦合共振无线电能传输效率特点引入粒子群优化策略(PSO),通过迭代求解粒子适应度函数,获得全局最优解,实现系统最大效率跟踪控制.研究表明,所提方法能够找到不同距离下最大传输效率对应的系统谐振频率,使无线电能传输系统电能接收端以最大效率运行.

For magnetically-coupled resonant wireless power transfer （MCR-WPT） system, the resonance frequency changes and the transfer efficiency reduces when the distance between the transmitter and the receiver is smaller than a certain distance. To keep the receiver operates at a maximum efficiency, this work proposes a control method which is able to track the maximum efficiency. According to the characteristics of the MCR-WPT system, particle swarm optimization（PSO） strategy is introduced. Maximum efficiency tracking control is realized by solving particle fitness function iteratively to obtain the global optimal solution. The results indicate that the resonance frequency at the maximum transfer efficiency can be found with the proposed method for different distance to make the MCR-WPT system operate at the maximum efficiency.

作者:

王萌孙长兴

机构地区:

betway官方app 物理与电子工程学院

出处:

《betway官方app 学报：自然科学版》 CAS 北大核心 2016年第3期37-40,46,共5页

基金:

河南省重点科技攻关项目(152102210084) betway官方app 青年科学基金(2013QK04)

关键词:

谐振频率粒子群算法最大效率跟踪控制

resonance frequency PSO maximum efficiency tracking control

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