基于谐波特性的双侧LCC补偿网络参数设计方法  

A Parametric Design Method for Double-sided LCC Compensation Network Based on Harmonic Characteristic

作　　者：李金刚[1] 张旭泽 姬军鹏[1] 同向前[1] LI Jin-gang;ZHANG Xu-ze;JI Jun-peng;TONG Xiang-qian(Xi’an University of Technology,Xi'an 710048,China)

机构地区：[1]西安理工大学电气工程学院,陕西西安710048

出　　处：《电力电子技术》2021年第6期88-90,共3页Power Electronics

基　　金：陕西省科技成果转移与推广计划(2020CGXNG-006);陕西高等教育教学改革研究项目(19BG012)。

摘　　要：储能装置需要感应能量传输系统实现恒流(CC)/恒压(CV)的输出特性,而采用调频和辅助开关的实现方式会降低系统性能,因此提出了一种综合考虑谐波的双侧LCC补偿网络参数设计方法。所提方法仅通过频率切换实现CC/CV两种输出模式,无需额外的开关器件,降低了系统控制复杂度,并且通过设计补偿电容参数实现了充电全过程逆变器的软开关。为了验证理论分析的正确性和可行性,搭建了 400 W实验样机,实验结果表明所提参数设计方法使双侧LCC补偿网络在仅切换一次频率的情况下实现先CC再CV的输出特性,提高了系统的安全性和稳定性。Energy storage devices require inductive power transfer systems to achieve constant-current(CC)/constantvoltage(CV)output characteristics,but using frequency modulation and auxiliary switching will reduce system performance.Therefore,a comprehensive design method for the parameters of double-sided LCC compensation network considering harmonics is proposed.Using this method,two output modes of CC/CV are realized without additional switching devices which reduces the complexity of system control and soft switching of the inverter is realized by designing the compensation capacitor parameters in the charging process.In order to verify the correctness and feasibility of the theoretical analysis,a 400 W experimental prototype is configured.Experimental results show that the proposed design method enables the double-sided LCC compensation network to realize the output characteristic of CC and then CV with only one frequency switch which improves the safety and stability of the system.

关 键 词：补偿网络 谐波特性 软开关 

分 类 号：TN711[电子电信—电路与系统]