双逆变MC-WPT系统一次侧软开关研究  

Research on Primary-Side Soft Switching of Double-Inverter MC-WPT System

作　　者：殷勇 张小峰 王成亮[3] 许庆强 YIN Yong;ZHANG Xiaofeng;WANG Chengliang;XU Qingqiang(State Grid Jiangsu Electric Power Co.,Ltd.,Nanjing 211106,China;School of Automation,Chongqing University,Chongqing 400044,China;Jiangsu Fangtian Electric Power Technology Co.,Ltd.,Nanjing 211100,China)

机构地区：[1]国网江苏省电力有限公司,江苏南京211106 [2]重庆大学自动化学院,重庆400044 [3]江苏方天电力技术有限公司,江苏南京211100

出　　处：《电器与能效管理技术》2022年第7期16-20,共5页Electrical & Energy Management Technology

摘　　要：针对一类大功率无线电能传输的应用场合,系统选用LCC-S型补偿拓扑结构,需要多个逆变器并联来提升功率容量以及系统的稳定性。为了减少多个逆变器模块的开通关断损耗,推导了一次侧LCC谐振网络实现软开关的条件,通过对一次侧谐振网络进行参数不对称设计,使系统的阻抗呈现弱感性特性,实现开关管的零电压开通和关断。通过仿真和实验,验证了所提设计方案实现双逆变器并联系统在大功率范围内软开关的可行性。For a class of high-power wireless power transmission applications,the system uses the LCC-S type compensation topology structure,which requires the multiple inverters in parallel to improve power capacity and system stability.In order to reduce the turn-on and turn-off loss of the multiple inverter modules,the conditions for the primary-side LCC resonant network to achieve soft switching are derived.By designing the primary-side resonant network with asymmetric parameters,the impedance of the system is weakly inductive.The zero-voltage turn-on and turn-off of the switch tube are realized.Simulations and experiments verify the feasibility of the proposed design scheme to realize the soft switching of dual inverter parallel system in large power range.

关 键 词：无线电能传输 逆变器并联 LCC谐振网络 软开关 

分 类 号：TM464[电气工程—电器]