基于开关可控电容和半控整流桥的功率源型感应式耦合电能传输系统  

Programmable Constant-Power Inductive Coupled Power Transfer System Based on Switch-Controlled Capacitor and Semi-Active Rectifier

作　　者：黄智聪 邹博维 黄振威[1] Huang Zhicong;Zou Bowei;Huang Zhenwei(SHIEN-MING WU School of Intelligent Engineering South China University of Technology,Guangzhou 511442 China)

机构地区：[1]华南理工大学吴贤铭智能工程学院,广州511442

出　　处：《电工技术学报》2022年第24期6272-6283,共12页Transactions of China Electrotechnical Society

基　　金：国家自然科学基金(52007067);广东省自然科学基金(2022A1515011581);广州市基础研究计划(202102020381)资助项目。

摘　　要：该文提出一种单级功率源型感应式耦合电能传输(ICPT)系统,该系统的输出功率在负载发生变化时可以保持恒定。相较于传统电流源型或电压源型ICPT系统,该ICPT系统具有可编程配置的功率源输出能力,实现更宽的输出范围,可以兼容适配不同规格电池模组或超级电容充电。该功率源型ICPT系统在一次侧采用LCC补偿结构,二次侧包括串联一个开关可控电容(SCC)以及一个半控整流桥(SAR)。该文还提出一种协同控制SCC和SAR的方法,实现ICPT系统二次侧工作在谐振的状态,以及可以通过配置二次侧等效负载阻抗实现可调输出功率。由于控制方案是基于固定工作频率和二次侧实时调节,所以无需一次、二次侧无线反馈通信。此外,该单变换器级ICPT系统的开关器件始终工作在软开关模式,减少了开关损耗。最后,通过对ICPT系统进行仿真分析和实验验证,证明了ICPT系统及其控制方法的可行性。This paper proposed a single-stage inductive coupled power transfer(ICPT)system with constant power(CP)outputs against load variation.Compared with conventional ICPT systems with constant current or constant voltage output characteristics,CP output characteristics can maximize the output power capability of the ICPT system,which is suitable for battery or supercapacitor charging applications.The proposed ICPT system uses an LCC compensation structure on the primary side and a switched-controlled capacitor(SCC)in series with a semi-active rectifier(SAR)on the secondary side.This paper also proposed a coordinative control method for the SCC and SAR to achieve a resonant secondary side of the ICPT system and adjustable output power by configuring the equivalent load impedance of the secondary side.Since the control scheme is based on a fixed operating frequency and real-time regulation on the secondary side,no wireless feedback communication is required.Moreover,all power switches realize soft-switching to reduce switching losses.Finally,simulation and experiment verify the correctness and feasibility of the proposed model and method.

关 键 词：感应式耦合电能传输 恒功率 开关可控电容 半控整流桥 宽输出范围 

分 类 号：TM724[电气工程—电力系统及自动化]