Wide Design Range of Constant Output Current Using Double-Sided LC Compensation Circuits for Inductive-Power-Transfer Applications
Wide Design Range of Constant Output Current Using Double-Sided LC Compensation Circuits for Inductive-Power-Transfer Applications
复制标题
使用双面 LC 补偿电路实现感应电力传输应用的宽设计范围的恒定输出电流
DOI：
10.1109/tpel.2018.2839769
复制
发表时间：
2019-03-01
影响因子：
6.7
通讯作者：
Chen, Xi
中科院分区：
文献类型：
--
作者：
Qu, Xiaohui;Chu, Haijun;Chen, Xi
感应功率传输（IPT）转换器应该理想地实现几乎为零的无功循环功率、功率器件的软开关和负载无关的恒定输出电压或电流，具有优化的传输效率和最低的部件额定值。然而，与负载无关的输出特性取决于IPT Transformer参数及其补偿。空间受限的IPT Transformer限制了低阶谐振电路补偿型IPT变换器的设计，使得IPT变换器难以优化。本文将分析的条件下，任何额外的设计自由度，可以允许一个双面LC补偿电路，以实现负载无关的输出和零无功功率输入。详细分析了不受Transformer参数限制，实现无功输入和恒流输出的双侧LC补偿。导出了实现这两个特性的补偿电路参数的设计条件。进一步提出了一种互补的LC-CC补偿IPT变换器，以扩展双侧LC补偿IPT变换器的输出电流幅度限制。最后，以IPT转换器的原型来验证所提出的双面LC补偿电路的设计灵活性，以达到多个目标。
Inductive-power-transfer (IPT) converters should desirably achieve nearly zero reactive circulating power, soft switching of power devices and load-independent constant output voltage or current with optimized transfer efficiency, and lowest component ratings. However, the load-independent output characteristic is dependent on IPT transformer parameters and their compensation. The space-constrained IPT transformer restricts the design of the low-order resonant circuit compensated IPT converter, making the IPT converter hard to optimize. This paper will analyze conditions under which any extra design freedom can be allowed for a double-sided LC compensation circuit in order to achieve load-independent output and zero reactive power input. A detailed analysis is given for the double-sided LC compensation achieving zero reactive power input and constant current output, without being constrained by the transformer parameters. Design conditions of the compensation circuit parameters for achieving these two properties are derived. A complementary LC-CC compensated IPT converter is further proposed to extend the output current amplitude limitation of the double-sided LC compensated IPT converter. Finally, the prototypes of the IPT converters are constructed to verify the design flexibility of the proposed double-sided LC compensation circuit for achieving the multiple objectives.