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针对抽油机电驱动装置效率和功率因数低、耗能严重的问题,设计了一种新型的抽油机节能控制系统。该节能控制器采用双向反并联晶闸管进行控制的三相交流调压技术,通过检测电动机电压与电流之间的相位差变化作为控制信号,控制晶闸管的导通角,从而改变电动机的工作电压,使电动机在空载或轻载时低于额定电压运行,以达到节能的目的。该节能控制器节能效果好,可以大量推广。
Aiming at the problem of low efficiency and low power factor and serious energy consumption of electric drive unit of pumping unit, a new type of pumping unit energy saving control system was designed. The energy-saving controller adopts a bidirectional anti-parallel thyristor to control the three-phase AC voltage regulating technology, and controls the conduction angle of the thyristor by detecting the phase difference change between the motor voltage and the current as a control signal so as to change the working voltage of the motor so that Motor at no-load or light-load operation below rated voltage, in order to achieve energy-saving purposes. The energy-saving controller energy-saving effect, you can promote a large number.