Based on international satandard IEC (International Electrotechnical Commission) 61131-3 programming languages,taking three-phase AC motor as a controlled object,a motor control system was designed. The control,monitor function and animation effects of three-phase AC motor were achieved for start-hold-stop, normal-reverse rotation, and sequence starting. The results showed that this system' s control function is effective and performance is excellent.%基于IEC 61131-3国际标准化编程语言,以三相交流电机为控制对象,设计了电机控制系统.实现了三相交流电机的启保停、正反转和顺序启动的控制、监控功能和动画效果.测试结果表明,该系统控制有效、性能优良.本系统针对实验教学改革,适用于开展大学生课外科技活动、拓展实践能力.
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