ICPT系统谐振频率跟踪方法研究  

A New Method of Frequency Tracking Control for ICPT System

作　　者：周豪[1] 姚钢[1] 马立伟[2] 魏文[2] 

机构地区：[1]电力传输与功率变换控制教育部重点实验室,上海交通大学,上海200240 [2]上海市电力公司市区供电公司,上海200080

出　　处：《电力电子技术》2013年第9期77-79,共3页Power Electronics

摘　　要：针对传统的感应耦合电能传输(ICPT)系统的谐振频率跟踪问题,分析了基于初次级串联补偿的ICPT系统拓扑模型。基于对电路的建模和分析,给出了系统的电压增益函数。通过分析系统工作频率与输出功率的关系,提出了基于扰动观察法的谐振频率跟踪方法,使得变换器始终工作在谐振频率处,保证系统具有最大功率输出。该方法通过软件来实现频率的跟踪,降低系统硬件成本。实验结果证明了该方法对于元件参数、负载阻抗和系统耦合距离的改变,都能进行自适应谐振控制。In the inductively coupled power transfer（ICPT） system, aiming at the resonant frequency tracking problem, the topology of ICPT is analyzed, based on the series compensating in primary and secondary sides.The voltage gain function is presented on the basis of the circuit modeling and analysis.By analyzing the relationship between operation frequency and output power,the resonant frequency tracking method based on the conventional perturbation and observation algorithm is presented.The proposed method can ensure that the inverter is always operating at the resonant frequency and the system has a maximum power output.The method is ：implemented by software,to reduce the hardware cost.The experimental results verify that the resonant frequency tracking control method can adjust the changes of component parameters, load implement and the coupling distance.

关 键 词：电能传输 感应耦合 频率跟踪 扰动观察法 

分 类 号：TM92[电气工程—电力电子与电力传动]