PLC控制器416NHM30030A
控制原理
从抽油机电机的负载特性分析，主要是力矩动态大范围周期变化，频率控制处于第二位，这就要求控制器具有力矩快速响应能力、高力矩输出能力。而只有运用DTC技术的智能装置才具有此功能。抽油机专用智能节能驱动解决方案主要是根据油田实际情况，以及梁式抽油机的机械结构，开发出HPL380型抽油机电机节电控制器，它能自主判断抽油机运行的上下冲程，根据油井的实际情况，实时调节上下冲程的速度，从而在实际抽油时，不更改每分钟的抽油次数，但增加每次抽油时的采油量，提高抽油机的产量。智能节能方案通过调整装置内部的频率参考值，保证抽油时间（SPM）恒定。所有的参考指令都将折算为每分钟的抽油次数。控制的原理是：对正常工作给出合适的电流限制，在电动状态下，电机实际速度低于参考值；在发电状态下，允许电机速度高于参考值，从而保持平均的恒定抽油时间。当使用平衡负载应用时对上下冲程使用两种不同的参考频率值。
PLC控制器416NHM30030A
PLC控制器416NHM30030A
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PLC控制器416NHM30030A
