摘要
当前直流伺服系统和变频驱动电源得到广泛应用,这些设备基本都配置了工业现场总线通信(例如CAN总线通信),方便远程控制。但这些设备中的功率开关器件在正常运行时产生的干扰常常会导致现场总线通信无法正常工作。文章全面分析了干扰产生的机理、可能的干扰源及干扰的耦合路径,并从阻断干扰路径和提高受扰对象的抗干扰能力两个方面提出了此类通信干扰的解决方法。
Currently, the DC servo system and variable frequency drive power supply are widely used. These devices are usually equipped witindustrial field bus communication such as CAN bus to implement remote control. But the interference coming from the power switches whethese devices are working often makes the fieldbus communication failed. In this paper, the interference mechanism, the potential interferencsources and coupling paths are analyzed thoroughly. Furthermore,the solutions to this kind of communication problem are proposed from two apects ：cutting the coupling paths and improving the anti-interference ability of the interfered object.
出处
《微型机与应用》
2016年第19期7-8,共2页
Microcomputer & Its Applications
关键词
伺服驱动
CAN总线
干扰
共模电流
servo drive
CAN bus
interference
common mode current
