基于单片机的航空直流接触器智能控制单元设计  

Development of Smart Controller of DC Contactor Based on MCU

作　　者：刘天宇[1] 张晓斌[1] 董延军[1] 

机构地区：[1]西北工业大学自动化学院,陕西西安710072

出　　处：《测控技术》2014年第7期81-84,共4页Measurement & Control Technology

摘　　要：接触器智能控制单元是为了满足新型飞机配电技术自动化和智能化要求而研制的关键型功率控制器件,用于飞机配电系统的电力控制和所在线路的保护。对流经接触器主触点的电流进行采样,送入单片机处理后判断是否需要保护以及采取何种保护。同时控制计算机与单片机之间通过通信板卡进行通信,实现上位机对接触器的控制和接触器工作状态的反馈。对整个系统的硬件以及软件设计进行了介绍,最后通过实验验证了直流接触器智能控制单元能够在过载时实现反延时保护和快速保护的功能,具有较高的科研参考价值。The smart controller of contactor is developed for achieving the automation and intelligence of new aircraft power distribution as a critical device used for the power control and wire protection of the power distribution system.The MCU determines the time and the way of protection according to the sampling of current through the main contacts of DC contactor.Beyond that,the MCU transmits the working state to the upper computer and receives the control command from there via the communication board.The design of hardware and software are introduced,the functions of inverse time protection and fast protection are also proved through experiment,which has a high scientific research reference value.

关 键 词：飞机配电系统 单片机 反延时保护 RS485通信 

分 类 号：V240.2[航空宇航科学与技术—飞行器设计]