一种电磁式动平衡头励磁线圈驱动电路  

A Novel Driving Circuit for Exciting Coils in Electromagnetic Active Balancer

作　　者：辛文辉[1] 景敏卿[2] 刘恒[2] 樊红卫[2] 智静娟[2] 

机构地区：[1]西安理工大学机械与精密仪器工程学院,西安710048 [2]西安交通大学机械工程学院机械电子及信息系统研究所,西安710049

出　　处：《科学技术与工程》2014年第27期228-232,共5页Science Technology and Engineering

基　　金：国家自然科学基金项目(51175410);教育部博士点基金项目(20116118120007);陕西省教育厅项目(11JK0868)资助

摘　　要：分析了电磁式动平衡头励磁线圈的工作特点,提出了一种"BUCK调压+H桥调相"复合式励磁线圈驱动电路。BUCK调压电路产生幅值可变电压,H桥调相电路在励磁线圈中产生间断的、方向交错的电流。调压和调相结合,满足励磁线圈初始电磁力大、电磁力方向交错变化的特殊要求。仿真及实验验证了驱动电路的有效性,该电路在实际的电磁式动平衡系统中得到了很好的应用,具有工作稳定、通用性强的特点。Following the actuating principle of electromagnetic active balancer,a novel exciting coils driving circuit based on ＂BUCK voltage regulation ＋ H bridge phase modulation＂is proposed. The BUCK voltage regulation offer a amplitude variable voltage while the H bridge charge the coils current intermittent and make the current direction staggered. Combining the voltage regulation and phase modulation,the driver circuits meets the special required of exciting coils in the initial magnetic force strong and the direction of electromagnetic field staggering.The simulation and experiment verify the validity of the driving circuit,and the circuit has been used in a real electromagnetic active balancer system,which confirms the driver circuit is stable and versatile.

关 键 词：电磁式动平衡 励磁线圈 驱动电路 

分 类 号：TM921.5[电气工程—电力电子与电力传动]