模拟量滤波技术在桥式抓斗卸船机称重系统上的应用  

作　　者：连俊 

机构地区：[1]福建八方港口发展有限公司,福建莆田351100

出　　处：《科技创新与应用》2020年第24期153-154,共2页Technology Innovation and Application

摘　　要：大型煤炭及铁矿石散货码头桥式抓斗卸船机均采用自动化交流变频调速控制系统,对桥式抓斗卸船机自动化控制系统采集模拟量数据的稳定性、高效性和可靠性提出了较高的要求,文章针对桥式抓斗卸船机卸船作业环境的特点,介绍采用模拟量滤波技术,实现在电磁干扰强的作业环境下,由于瞬时电磁干扰给模拟量采集造成的扰动,消除模拟量采样值误差,满足桥式抓斗卸船机自动化控制系统对稳定性、高效性和可靠性的要求,自运行以来,工作稳定,故障率低,满足大型散货船靠泊装卸船作业需求,取得了显著的经济效益和社会效益。The bridge-type grab ship unloader of large coal and iron ore bulk cargo terminal adopts automatic AC frequencyconversion and speed-regulation control system,which has posed higher requirements for the stability,efficiency and reliability of analog data collected by the automatic control system of bridge-type grab ship unloader.According to the characteristics of ship unloading environment of bridge-type grab ship unloader,this paper introduces the use of analog filtering technology to realize in the working environment with strong electromagnetic interference.Due to the disturbance caused by instantaneous electromagnetic interference to analog acquisition,the error of analog sampling value is eliminated,and the requirements of stability,efficiency and reliability of the automatic control system of bridge-type grab ship unloader are satisfied.Since the operation,the work is stable and the failure rate is low,which meets the needs of berthing,loading and unloading operations of large bulk carriers,and remarkable economic and social benefits have been achieved.

关 键 词：S7-400H PLC 模拟量滤波 称重 桥式抓斗卸船机自动化控制 

分 类 号：U653.92[交通运输工程—港口、海岸及近海工程]