Pumping unit dragging motor energy-saving control equipment system

Abstract

The invention discloses a pumping unit dragging motor energy-saving control equipment system which comprises a switch reluctance motor and an energy-saving controller. The energy-saving controller comprises an operation display circuit, a control circuit, a driving circuit and a power circuit. The operation display circuit is connected with the control circuit, and the control circuit is connected with the switch reluctance motor, the driving circuit and the power circuit. The driving circuit is connected with the power circuit. The power circuit is connected with the switch reluctance motor. The energy-saving controller adjusts the output power of the switch reluctance motor by adjusting the rotating speed of the switch reluctance motor. According to the system, motor energy consumption can be reduced, and motor efficiency can be improved.

Description

technical field [0001] The invention relates to the technical field of driving motors for pumping units, in particular to an energy-saving control equipment system for driving motors for pumping units. Background technique [0002] Since the load of the pumping unit is an alternating load with impact, the current driving motor of the pumping unit is mainly a three-phase asynchronous motor, which is suitable for the working condition of constant load, which causes the motor does not match the load. The use of three-phase asynchronous motors as driving motors for pumping units has limitations in the following aspects: [0003] 1. When the pumping unit is started with load, the starting current and torque of the motor are large, resulting in high installed power and energy consumption of the motor; [0004] 2. The current and torque are small during operation, and the load rate and efficiency of the motor are low; [0005] 3. For the same model, the greater the rated power o...

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Problems solved by technology

[0003] 1. When the pumping unit is started with load, the starting current and torque of the motor are large, resulting in high installed power and energy consumption of the motor;

[0004] 2. The current and torque are small during operation, and the load rate and efficiency of the motor are low;

[0006] 4. The lower the load rate of the motor, the lower the efficiency

[0007] Due to the above four reasons, the motor has been operating under low load for a long time, unable to reach the rated efficiency range, and the energy loss of the motor is high, which affects the efficiency level of the overall mechanical recovery system of the oil well.

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