Intelligent control dragging device of combined permanent magnet variable-frequency synchronous oil pumping unit

Abstract

The invention provides an intelligent control dragging device of a combined permanent magnet variable-frequency synchronous oil pumping unit, and belongs to the technical field of special variable-frequency speed regulation permanent magnet synchronous motors for oil fields. According to the device, a motor is connected with an oil pumping unit through a belt; an intelligent control system can beused for locally controlling or remotely controlling a variable-frequency and variable-speed permanent magnet synchronous motor in real time through a wireless network and transmitting detection dataof the oil pumping unit, so that real-time remote transmission of detection data of the oil pumping unit is realized through a wireless network so as to achieve digital oil extraction work of an oil field; and a casing, an end cover, a shaft and a bearing form the supporting system of the motor, a stator coil, a stator iron core, a rotor iron core and magnetic steel form the circuit and magnetic circuit system of the motor, and the motor is enabled to continuously input power required by a load under the condition that three-phase current of the stator coil is given by a driver. The intelligent control dragging device is energy-saving, high in power factor, small in motor current, free of slip frequency in operation and stable in rotating speed, the temperature rise is 15-20 DEG C lower than that of an asynchronous motor, and the purposes of high efficiency and energy conservation are achieved.

Description

technical field [0001] The invention relates to a combined permanent-magnet variable-frequency synchronous pumping unit intelligent control drag device, which belongs to the field of special-purpose variable-frequency speed-regulating permanent-magnet synchronous motors for oilfields and the technical field of digital oilfield engineering. Background technique [0002] At present, the drag device, motor, and digital control box used in the oil field are composed of independent work. The disadvantage is that the drag device and the motor have rotor reactive power consumption, which cannot better realize energy saving, and most of them are asynchronous motors with low efficiency. , The digital control box also works independently and relies on various sensors to realize numerical control, which cannot effectively use electrical parameter control, resulting in the phenomenon that various parts are disordered and the performance is not comprehensive enough. [0003] With the rap...

AI Technical Summary

Problems solved by technology

[0002] At present, the drag device, motor, and digital control box used in the oil field are composed of independent work. The disadvantage is that the drag device and the motor have rotor reactive power consumption, which cannot better realize energy saving, and most of them are asynchronous motors with low efficiency. , the digital control box also works independently and relies on various sensors to realize numerical control, which cannot effectively use electrical parameter control, resulting in the phenomenon that various parts are disordered and the performance is not comprehensive enough

[0005] Moreover, the existing technology is not equipped with an intelligent control system, the motor and intelligent digitalization are disconnected, and the lack of a control cabinet to realize the real-time remote transmission of the detection data of the pumping unit through the wireless network, the customer cannot use the PC or mobile APP to connect to the server anytime and anywhere. Intelligent control system for condition monitoring of each equipment

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