【作者】 巫春玲；

【导师】 马瑞卿；

【作者基本信息】 西北工业大学 ， 电力电子与电力传动， 2004， 硕士

【摘要】 本文源于“十五”航空支撑基金项目-新型航空用直线直流电动机。论文研究了直线直流电动机的分类、特点及其工作原理，重点针对飞机应急放油阀用航空直线直流步进电动机驱动控制技术进行了研究。 论文在讨论了直线直流步进电动机工作机理的基础上，根据两相混合式直线直流步进电动机(HDCLSM)集中绕组的通电特点和脉冲步进控制方法，采用单片机为核心控制单元，提出了两种数字控制方案，分别就每种控制系统技术方案、硬件电路、控制软件设计等技术内容进行了详细地分析和研究。 根据系统技术要求，采用单片机实现了混合式直流直线步进电动机的开环数字控制；利用V／F变换和复合键控方法实现了系统转速等参数的数字设定；利用细分控制技术保证了电机运行的平稳性，并进行了波形分析和理论研究；采用单片机软件降速控制策略解决直线步进电机行程末端的机械冲击问题；同时对主功率电路、驱动电路和系统保护电路进行了分析，完成了硬件设计、制作和软件编程、调试，最后在混合式旋转步进电动机上进行了全面测试。 测试结果表明：该控制器各项指标达到了设计要求，电机运行稳定。该直线直流步进电动机驱动控制系统的研制，可替代现有飞机应急放油阀有刷驱动电机，也可用于小功率直线运动机构中，具有较好的应用前景。更多还原

【Abstract】 The thesis roots in the item supported by "fifteen" aviation funds,-new type aeronautic linear DC motor(LDCM), study its classes characteristics and work principle, mainly researches the drive and control technique of aeronautic linear DC step motor(LDCSM) using in emergency discharging oil valve on airplane.The paper discusses the work princinple of LDCSM, adopts singlechip as core control cell, puts forward two kinds of control schemes, analyzes and study the technique scheme, hardware and software design of each control system separately in detail, on the basis of the centralized winding electrifying trait and pulse stepping control method of two phase hybrid linear DC step motor(HDCLSM).According to the system technology require, adopting singlechip realize open loop digital control of HDCLSM; using V/F conversion and complex key-control method realize digital setting of system parameter, such as velocity; using micro-stepping control insure the motor running more smoothly; adopting debasing speed control method to eliminate the mechanical impact of distance termination effectively; at the same time, analyzing main power circuits drive circuit and protect circuit of system, completing hardware design and facture and software programming and debugging; at last, making a whole test in hybrid rotary step motor.The experiment result indicates that this control system reaches the qualities required and run smoothly also. Moreover, the aeronautic linear DC motor control system not only can instead the drive motor of emergency discharging-oil valve, but also can be used in some low power electromotion machine making linear locomotion. The motor owns extensive application foreground preferably.更多还原