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作 者:邓孝祥 张鹏飞 葛飞 Deng Xiaoxiang;Zhang Pengfei;Ge Fei(School of Electrical&Control Engineering,Heilongjiang University of Science&Technology,Harbin 150022,China)
机构地区:[1]黑龙江科技大学电气与控制工程学院
出 处:《黑龙江科技大学学报》2019年第5期609-613,共5页Journal of Heilongjiang University of Science And Technology
摘 要:针对传统无线输电系统存在传输功率和效率随发射线圈上的电流变化、发射线圈的电流随负载变化的现象,提出一种新型双侧LCC补偿结构的谐振变换器拓扑。通过叠加定理分析法对系统进行建模,分析影响系统传输功率、效率的因素及输出电流与输入电压之间的增益关系,给出选取谐振元件参数的方法,通过LTSpice仿真软件对谐振式LCC补偿拓扑的WPT系统仿真,搭建系统样机验证仿真的准确性。结果表明:当副边线圈电流超前原边线圈电流90°时,系统为最大传输功率。搭建1 kW样机进行理论验证,满载时整机效率为92%。This paper proposes a novel resonant converter topology with bilateral LCC compensation structure as an improved alternative to the existing wireless transmission systems(WPT)whose transmission power and efficiency tend to change with the current on the launch coil while the current of the launch coil tends to change with the change of the load.The study is composed of obtaining the factors affecting the transmission power and efficiency of the system and the gain relation between the output current and the input voltage using modeling and analysis of the system by superposition theorem analysis;providing the method of choosing parameters of resonant elements;and simulating the WPT system with resonant LCC compensation topology using LTSpice simulation software,and verifying the accuracy of simulation by building the system prototype.The results show that the system enables the maximum transmission power when the current of the side coil is 90 degrees ahead of the original side coil;and the theory verification is obtained by constructing a 1 kW prototype,and the overall efficiency is 92%at full load.
分 类 号:TM724[电气工程—电力系统及自动化]
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