摘要
使用西门子SIMATIC S7-300系列PLC组成的分布式I/O控制系统及标准伺服控制系统组成变频器热平衡试验数字控制网络。通过总线采集和存储两台变频器的数据,并通过I/O控制方式对变频器进行运行控制。按照实验方法编写相关的控制程序和保护程序,实现DCS集散控制。该控制系统已投入使用,满足企业对改进产品性能的要求。通过Matlab软件对测试数据进行分析得出特性曲线和热平衡方程。
A data processing control network for thermal balance test of inverter is built by using S7-300 PLC of SIMATIC series, distributive Ⅰ/O control system and standard servo system. Signals of two inverters are collected and stored through the bus, and the operation of inverters is controlled via Ⅰ/O model. According to the experimental method and related control and protection procedures, the collective and distributive control may be realized. The control system has been put into use, and meet the enterprise ＂s requirement on improvement of product performance. The test data are analyzed by Matlab software, and drawn performance curves and derived thermal balance equations.
出处
《煤矿机电》
2013年第1期6-9,共4页
Colliery Mechanical & Electrical Technology
关键词
变频器
热平衡试验
控制
inverter
thermal balance test
control
