基于ARM和CPLD的三相异步电动机智能软启动器的设计

Design of Intelligent Soft-starter for Three-phase Asynchronous Motor Based on ARM and CPLD

介绍了一种三相异步电动机智能软启动器的设计方案。该软启动器以ARM芯片LPC2364为控制核心,采用大规模可编程逻辑器件EPM7128SLC84-15作为逻辑信号处理电路,可通过Modbus现场总线与上位机通信;能对不同功率的三相异步电动机进行转距等多种方式的软启动,并通过实时监控电动机的各项运行指标实现二十余种电动机保护。实际运行结果表明,该智能软启动器运行稳定,操作简便,抗干扰能力强,且扩展方便。

A design scheme of intelligent soft-starter for three-phase asynchronous motor was introduced.The soft-starter is designed by use of LPC2364 as controlling core and EPM7128SLC84-15 as logic signal process circuit,and can communicate with upper computer through Modbus field bus.The soft-starter can softly start three-phase asynchronous motors with diverse power by multi ways such as torque and realize more than twenty motor protections by real-timely monitoring motor＇s running parameters.The actual running result showed the softstarter has stable running,simple operation,high anti-interference performance and convenient extension.