摘要
为解决煤矿安全监控系统中不同传感器的恒流无线供电问题,针对电流馈电型磁耦合感应式无线电能传输(ICPT)系统,研究了一种适用于无线电能传输的复合谐振补偿网络,推导了实现恒流输出的补偿网络所需条件,分析了软开关实现方式及系统参数变化对系统输出特性及输入阻抗角的影响。该网络通过补偿元件的重构组合及参数配置获得不同的输出增益,而无需重新设计松耦合变压器,简化了硬件电路。实验结果表明,该复合谐振补偿网络可以实现无线电能传输系统原边线圈及输出电流的负载无关性,同时满足开关管关断时的软关断,可用于实现煤矿安全监控系统中不同类型或型号传感器的恒流供电,有利于提高煤矿安全监控系统的可靠性及对不同负载的适应性。
In order to solve problem of constant current wireless power supply of different sensors used in coal mine safety monitoring and control system,a composite resonator compensation network for wireless power supply were studied based on current-fed ICPT system,the necessary conditions of the compensation network for realizing constant output were derived,and influences of the implementation mode of soft switch and the system parameters on output characteristics and input impedance angle of the system were analyzed.The network can obtain different output gain through reconfiguration and parameter configuration of compensation element without redesigning loosely coupled transformer,which simplifies hardware circuit.The experiment results show that the proposed composite resonator compensation network can achieve load independence of the primary coil current and output current,and satisfy soft turn off of switching tube.The resonant compensation networks also can be used to realize the constant current power supply of different sensors used in coal mine safety monitoring and control system,which is beneficial to improve reliability of coal mine safety monitoring and control system and adaptability of different loads.
作者
侯春
朱旺
水恒琪
于东升
HOU Chun;ZHU Wang;SHUI Hengqi;YU Dongsheng(Electrical Department,Jiangsu College of Safety Technology,Xuzhou 221011,China;School of Electrical and Power Engineering,China University of Mining and Technology,Xuzhou 221116,China)
出处
《工矿自动化》
北大核心
2018年第11期84-90,共7页
Journal Of Mine Automation
基金
国家自然科学基金项目(51307174)
