基于E类放大器的电容耦合电能传输系统参数研究

由于接触式电能传输方式在转轴扭矩测试等特殊环境下使用的局限性,无线电能传输技术越来越受到国内外研究者的重视.分析了E类放大器在电容耦合电能传输系统的工作原理.在E类放大器与CLC调谐电路模型的基础上,基于E类放大器中开关管的零电压开关(ZVS)与零电压变化率开关(ZDS)条件,采用粒子群算法,设计出电路中的各个参数的最优解,并建立电容耦合电能传输系统的电路模型.应用Muhisim电路仿真软件对设计结果进行验证.仿真结果表明:该模型有效提高了机构的带负载能力.

Research on Parameters of Electric-Field Coupled Power Transmission System Based on Class-E Amplifier

Because of the limitation of the contact type electric energy transmission mechanism in special environment,the wireless power transmission technology attracts more and more attentions of researchers at home and abroad.The working principle of Class-E amplifier in an electric-field coupled wireless power transmission system is analyzed.Based on the Class-E amplifier and the capacitor-inductor-capacitor (CLC) tuned circuit model,as well as the zero voltage switching (ZVS) and the zero voltage rate switching (ZDS) conditions of Class-E amplifier,the optimal parameters of the circuit are designed with particle swarm optimization,and the circuit model of the electric-field coupled power transmission system is established.The design results are verified by Multisim circuit simulation software.The simulation results show that the proposed model can effectively improve the transmission efficiency and load capacity of the mechanism.