Research on intelligent frequency conversion control system of pumping unit with auto-adapted function

According to present beam pumping unit, the intelligent frequency conversion control system with auto-adapted function is developed on the basis of advanced technology and methods both in the domestic and abroad. The application of frequency changer not only solved the impact problem at startup, but also improved the power factor significantly. For the solution to shortage of liquid in some oil wells and in order to achieve good running effect, the control system collected the parameters of motor unit continuously under the conditions of relatively original and the conditions of normal working and the data of dynamic liquid level. Using the algorithm processing, the control system controlled the velocity of mining fluid by frequency conversion to guarantee for liquid balance.