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首页> 外文期刊>Journal of power electronics >Characteristic analysis of new hybrid compensation topology for wireless charging circuits
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Characteristic analysis of new hybrid compensation topology for wireless charging circuits

机译：无线充电电路新混合补偿拓扑的特点分析

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摘要

Wireless power transfer (WPT) has the advantages of flexibility, safety, and high reliability. Thus, it is widely used in portable electronic equipment, electric vehicles (EV), medical equipment, and other fields. The resonance compensation method of wireless charging directly affects the gain characteristics of the output current and voltage. As a result, this is one of the main research focuses of wireless power transmission technology. A new hybrid compensation topology circuit is proposed in this paper, which is based on the EV constant-current (CC) and constant-voltage (CV) charging mode. In this hybrid topology circuit, an equivalent loosely coupled transformer T model is established for the primary and secondary coils. Through an analysis of the circuit principle, it is concluded that the wireless power transmission circuit can realize CC and CV outputs under a dynamic load change. The output power efficiency characteristics of the serial/parallel (S/P) compensation and serial/serial (S/S) compensation circuits are analyzed. In addition, the mutual inductance parameters are optimized by an efficiency power product method to achieve the overall optimal parameter design in terms of the circuit output power and efficiency. A simulation model and an experimental prototype of the wireless power transmission circuit are established. The design process of the circuit parameters under a given target current and voltage is also presented. The simulation verifies the correctness of the constant current and constant voltage output of the S/P-S/S hybrid compensation circuit. The experimental platform verifies the CC output under the S/P compensation topology, and the CV output under the serial/serial (S/S) compensation topology.
机译：无线电源传输（WPT）具有灵活性，安全性和高可靠性的优点。因此，它广泛用于便携式电子设备，电动车辆（EV），医疗设备和其他领域。无线充电的共振补偿方法直接影响输出电流和电压的增益特性。结果，这是无线电力传输技术的主要研究焦点之一。本文提出了一种新的混合补偿拓扑电路，基于EV恒流（CC）和恒压（CV）充电模式。在该混合拓扑电路中，为主线圈和次级线圈建立了等效的松散耦合变压器T模型。通过对电路原理的分析，得出结论，无线电力传输电路可以在动态负载变化下实现CC和CV输出。分析了串行/并联（S / P）补偿和串行/串行（S / S）补偿电路的输出功率效率特性。此外，通过效率功率产品方法优化互感参数，以实现电路输出功率和效率方面的整体最佳参数设计。建立了仿真模型和无线电力传输电路的实验原型。还呈现了在给定目标电流和电压下的电路参数的设计过程。仿真验证了S / P-S / S混合补偿电路的恒流和恒压输出的正确性。实验平台在S / P补偿拓扑下验证CC输出，以及串行/串行（S / S）补偿拓扑下的CV输出。

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