The Beam Pumping Motor Generates Electricity With Economy Energy Automatically Handle The System's Research

The Beam Pumping Motor Generates Electricity with Economy Energy Automatically Handle The System's ResearchA self-adjusted of power factor of motor and energy saving system used new type electric and electronic techniques and computer controlled techniques is introduced. On one hand, the problem of "big horse pulls little wagon" is resolved and the working efficiency of motor is improved by optimizing way to control the stator's voltage; On the other hand, an energy automatic processing system of "electric motor generates electricity" is developed, in which, the energy of the feedback of motor generating electricity is processed duly and correctly through real-time switch control of the generating electricity absorbing energy cell and is used at wellhead instead of returning power net. Due to the above factors, power factor in power net of motor is improved greatly. The system is different from traditional silicon controlled dephasing method, such speedy modules as whole controlled electric and electronic equipment IGBT and high frequency PWM controlling methods are employed, and the voltage of exchanging power supply of motor of beam pumping units can be controlled automatically, so there is no problem of power factor being decreased brought by silicon controlled phase single controlled, power factor in power net of beam pumping units' motor is enhanced really.The inverted PWM changing electric current the technique is applied in the prototype model. The prototype model was tested and operated on spot, power factor could reach beyond 0.95, the effect of following modulating voltage was better, the curve of factor of modulated voltage of exchanging systems changed following load rate was linear, the output of wave form was a flat and steady sinusoidal wave. It has certain effect of saving energy.