调压式抽油机节能控制器的研究

Research on Voltage Regulating Energy Saving Controller of Pumping Unit

本文针对游梁式抽油机在轻载和重载两种不同工况下,电机实际功率变化明显等问题,提出了功率因子、控制角和滞留角之间的约束关系模型,并提出基于数据点的自动滑动调节控制方法.设计了基于自学习算法调压式抽油机节能控制器.该设计采用双向晶闸管控制的三相交流调压技术,检测采集到的电机电压与电流之间的随动相位差信号,通过分析和自学习算法处理采集的信号之后,调节晶闸管控制角变化方向和大小,以改变电机的有效工作电压,从而达到节能增效的目的.测试结果表明,安装该节能控制器的电机平均有功损耗降低14.95%,平均无功损耗降低30.42%.

To solve the pumping units motor energy consumption problem,a constraint relational mode of power factor,con- trol angle and delay angle,and automatic control method are proposed. Controller of pumping unit is designed based on self- learn- ing algorithm. The design adopts current voltage adjusting technology, samples the signal of phase angle between voltage and cur- rent, analyzes the signal with self- learning algorithm, adjusts the direction and the size of thylistor control angle to change working voltage of motor, so as to save energy efficiently. Testing results show that motor average effective power loss decreases by 14.95 %, average none effective power loss decreases by 30.42 %.