基于可控电抗器的无接触电能传输系统动态补偿  

Dynamic Compensation of Contact-Less Power Transmission System Based on Controlled Reactor

作　　者：杨民生[1,2] 王耀南[2] 欧阳红林[2] 张细政[2] 

机构地区：[1]湖南文理学院电气工程系,常德415000 [2]湖南大学电气与信息工程学院,长沙410082

出　　处：《电工技术学报》2009年第5期183-189,共7页Transactions of China Electrotechnical Society

基　　金：国家自然科学基金(6077504);湖南省自然科学基金(05JJ30191)资助项目

摘　　要：静态补偿方式不能同时兼顾无接触电能传输系统的零相角运行条件与功率传输性能,为了解决该问题,本文提出了一种基于可控电抗器的动态补偿方法。在系统的一次侧采用可控电抗器与固定电容构成的并联支路进行动态补偿,在系统的二次侧采用静态电容补偿。通过反向并联的功率开关管来控制非饱和电抗器的导通电流大小,使一次侧等效电路动态谐振来获取电源侧的零相角运行条件。针对不同的二次侧补偿拓扑,导出了动态补偿支路中电感及电容的取值公式,并对补偿支路参数进行了优化设计。分别对系统采用动态补偿与静态补偿两种方式进行了PSpice电路仿真分析。理论分析与仿真结果表明,相对于静态补偿方法,动态补偿能在额定频率下获得系统电源侧电流与电压间的零相角运行条件,有效降低了对系统电源容量的需求,保证了系统功率传输性能。In an inductive coupled power transfer （ICPT） system, static compensation couldn＇t give attention to power transfer performance and zero phase between power source current and voltage. To solve this problem, a dynamic compensation method is proposed in this paper. With a controlled reactor and a fixed capacitor connected in parallel, the primary coil is tuned dynamically, and the secondary coil is compensated with a static capacitor. A pair of anti-parallel power switches is used to control current through the controlled reactor to obtain zero phase angle condition. Reactor and capacitor parameters are deduced and optimized with different compensation topologies of the secondary side. PSpice simulations are carried out for dynamic compensation and static compensation respectively. Theory analyze and simulation results indicate that compare with static capacitor compensation, dynamic compensation achieved zero phase angle between power source current and voltage on rating frequency, demand for power supply rating is reduced and power transmission performance is ensured.

关 键 词：感应电能传输 零相角 动态补偿 参数优化 

分 类 号：TM724[电气工程—电力系统及自动化]