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A PS/S Current-Fed IPT System With Variable Capacitors for Achieving ZPA Operation
IEEE Journal of Emerging and Selected Topics in Power Electronics ( IF 4.6 ) Pub Date : 2020-11-09 , DOI: 10.1109/jestpe.2020.3036639
Xuewei Pan , Chongwei Zhang , Haowei Niu , Yu Zuo , Fei Zhao

Zero-phase-angle (ZPA) operation is considered as a method to minimize the volt-ampere (VA) ratings and maximize transfer power to the load in the inductive power transfer (IPT) system. However, the ZPA operating prerequisite is quite sensitive to the variation of parameters such as IPT system coupling coefficient and load conditions. A parallel–series/series (PS/S) current-fed IPT system with a new variable capacitors (VCs) structure is proposed to achieve ZPA operation and constant output voltage at fixed frequency. The detailed analysis and mathematical model of the VCs network are reported. The proposed VCs structures in PS/S current-fed IPT system are discussed, analyzed, and compared with existing competitive topologies in the literature. The experimental results obtained from 65-W lab-prototypes are demonstrated to verify the analysis and performance.

中文翻译:

具有可变电容器的 PS/S 电流馈电 IPT 系统,用于实现 ZPA 操作

零相角 (ZPA) 操作被认为是一种在感应功率传输 (IPT) 系统中最小化伏安 (VA) 额定值并最大化传输到负载的功率的方法。然而,ZPA 运行前提对 IPT 系统耦合系数和负载条件等参数的变化非常敏感。提出了一种具有新型可变电容器 (VC) 结构的并联/串联 (PS/S) 电流馈电 IPT 系统,以实现 ZPA 操作和固定频率下的恒定输出电压。报告了VCs网络的详细分析和数学模型。对 PS/S 电流馈电 IPT 系统中提议的 VC 结构进行了讨论、分析,并与文献中现有的竞争拓扑进行了比较。
更新日期:2020-11-09
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