制氧同步电动机励磁控制系统消化吸收

来源期刊：冶金自动化2010年第1期

论文作者：张新 陈国锋

文章页码：41 - 45

关键词：同步电动机； 励磁控制系统； 直流调速装置； PID调节

Key words：synchronous motor； excitation control system； DC speed regulation device； PID regulation

摘    要：介绍首钢集团总公司制氧厂3万m³氧气系统大功率同步电动机西门子PLC励磁控制系统的的硬件及网络构成,解读系统控制程序并整理出控制程序结构和程序块功能,了解大功率同步电动机励磁调节原理和大功率同步电动机起动条件及起动过程。在此基础上建立同步电动机起动及励磁的西门子PLC硬件仿真系统,通过对西门子硬件仿真系统研究和实际运行调试监测,掌握同步电动机的异步降压起动和同步电动机励磁调节实现。根据实际运行系统和硬件仿真系统调试运行的报警和故障信息,总结了大功率同步电动机报警和故障的处理措施及解决办法。

Abstract: Hardware and network constitution of excitation control system with Siemens PLC for high power synchronous motor in 30 000 m³ oxygen system of Oxygen Making Plant of Shougang are introduced,control program and procedure of the system as well as function blocks are analyzed,and excitation regulation principle,start-up conditions and starting process of high power synchronous motor are understanded.On the basis of those,Siemens PLC hardware simulation system for start-up and excitation of synchronous motor was established.Through practical operation of the simulation system,asynchronous voltage dropping start-up and excitation regulation of synchronous motor were mastered.Through debugging process of the simulation system,solutions of faults were summarized.