一种并联谐振型ICPT电路频率稳定性控制方法

A Way of Frequency Stability Control for the Parallel Resonant in ICPT System

本文针对疏松耦合情况下ICPT(Inductively Coupled Power Transfer简称ICPT)系统的频率稳定性问题,提出一种通过引入磁放大器来实现谐振电感的动态可调,对系统频率进行闭环控制的方法。并以自持式电流馈送并联谐振型电路为例,设计了在线动态控制算法,给出了控制主流程图。通过理论分析和系统仿真,表明给出的方法能很好的实现系统工作频率的动态控制,以提高ICPT系统的整体性能。

This paper aim at the problem of the frequency stability which in Inductibely Coupled Power Transfer （ICPT）system , and proposed a new method which through the use of magnetic amplifier as a variable inductor is dynamically varied to closed-loop control the system frequency . In this paper, a current-fed parallel resonance converter is investigated. The dynamic on-fine identification control algorithm is shown and the flow process chart is given . Theoretical analysis,simulation rusuhs have demonstrated that the new method is successfully in the dynamic on-line control of the converter frequency, and improved the whole performance of ICPT system.