CINRAD/SA数字交流伺服系统调试和维修方法

总结了CINRAD/SA雷达交流变频数字伺服系统技术特点和交流变频数字伺服系统的主通道信号流程、监控信号流程、变频器信号流程,根据监测信息、报警信息、关键点参数,从位置环、速度环、加速度环3个方面探讨了CINRAD/SA雷达交流变频数字伺服系统故障诊断方法,以及天线不受控制、天线运转不正常、跳码或角码和天线实际位置不一致故障诊断方法.列举了两个典型故障个例,即：由于伺服速度反馈信号不正常,导致天线方位电机过热报警,方位无法完成无超调控制且方位到位精度差和过冲；由于方位和俯仰跳码,导致雷达动态错误报警,天线失控到高仰角死区.总结了这两个典型故障个例的理论分析和处理步骤.提出了交流变频数字伺服系统维修方面的一些建议,为新一代天气雷达技术支持和保障提供借鉴.

Debugging and Maintenance of CINRAD/SA Digital AC Servo System

The technical features of the AC variable frequency CINRAD/SA Digital Servo System are summarized, and the main channel signal process, monitoring signal process, and frequency converter signal process are described.According to the monitoring information,alarm information,and key points parameter, from the three aspects of position loop,velocity loop, and acceleration loop, a detailed discussion is made on the fault diagnosis methods of AC variable frequency CINRAD/SA digital AC servo system, as well as uncontrolled antenna, abnormal antenna running, jump code or corner code, and inconsistent antenna location. Two typical fault cases, as examples, are discussed and summarized in terms of theoretical analysis and processing steps, and some suggestions for the maintenance of AC variable frequency digital servo systems and CINRAD technology support are given for reference.