摘要
Abstract
In order to improve the reliability and behavior indexes of turbine genernor and to satisfy the automatic level of power station and people’s aesthetic requirements,research of some problems was performed,including measuring frequency of turbine PLC governor,human-machine interface,sampling period,communication,failure treatment,parameters setting,electric power supply,etc..The conceptions of static measuring frequency and dynamic measuring frequency are proposed,their calculation formulas are given,and the traditional external measuring frequency is changed into internal one.The advanced,beautiful Chinese-show-toucher is adopted for human-machine interface of turbine governor with the standard serial port RS232 or RS485.Through software coding,and adopting applied functions of constant scanning,several problems such as unequal sampling periods of PLC governor,etc.,are solved.The study results have been verified in the practical engineerings.This scheme may be chosen for design.关键词
可编程序控制器/测频/人机界面/采样周期/水轮机调速器分类
能源科技
