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Pumping unit multi-well common direct current bus group control intelligent off-peak operation control method and device

A DC bus, operation control technology, applied in parallel operation of DC power supply, AC motor control, generator control parts and other directions to achieve the effect of reducing power generation

Pending Publication Date: 2022-05-10
大庆富兴达石油科技有限公司
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  • Abstract
  • Description
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Problems solved by technology

[0004] The present invention aims to solve the above technical problems, that is, to solve the problem of how to accurately control the operation of the pumping unit and ensure the voltage stability of the power supply line of the pumping unit

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  • Pumping unit multi-well common direct current bus group control intelligent off-peak operation control method and device
  • Pumping unit multi-well common direct current bus group control intelligent off-peak operation control method and device
  • Pumping unit multi-well common direct current bus group control intelligent off-peak operation control method and device

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Embodiment Construction

[0066] Some embodiments of the present invention are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention, and are not intended to limit the protection scope of the present invention.

[0067] In the description of the present invention, "module" and "processor" may include hardware, software or a combination of both. A module may include hardware circuits, various suitable sensors, communication ports, memory, and may also include software parts, such as program codes, or a combination of software and hardware. The processor may be a central processing unit, a microprocessor, a digital signal processor or any other suitable processor. The processor has data and / or signal processing functions. The processor can be implemented in software, hardware or a combination of both. The non-transitory computer readable storage medium inc...

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Abstract

The invention relates to the technical field of oil pumping units, particularly provides an oil pumping unit multi-well common direct current bus group control intelligent off-peak operation control method and device, and aims to solve the problem of how to ensure the voltage stability of an oil pumping unit power supply line. The oil pumping unit control method comprises the steps that when it is detected that the bus voltage of a direct-current bus is in an abnormal voltage rising state, the number of oil pumping units in a reverse power generation state is obtained; if the number is larger than 1, the voltage frequency corresponding to each oil pumping unit is adjusted, the down stroke starting time of each oil pumping unit is changed, and it is guaranteed that only one oil pumping unit is in a reverse power generation state at each moment; and if the number is equal to 1, the voltage frequency corresponding to the pumping unit in the reverse power generation state is adjusted, and the generating capacity of the driving motor corresponding to the pumping unit in the reverse power generation state is reduced. By reducing the number of the oil pumping units in the reverse power generation state or reducing the generating capacity of the oil pumping units in the reverse power generation state, the bus voltage is reduced, and the voltage stability of a power supply line is ensured.

Description

technical field [0001] The invention relates to the technical field of pumping units, and specifically provides a multi-well common DC bus group control intelligent peak-staggered operation control method and device for pumping units. Background technique [0002] The work of the pumping unit is a periodic process. The pumping unit is driven by the drive motor in the upstroke stage, that is, the drive motor is in the electric state, but the pumping unit will drive the drive motor to generate electricity in the downstroke stage, even if the drive motor In the state of reverse power generation, the electric energy generated by driving the motor to generate reverse power will be fed back to the power supply line, but the electric energy can no longer be fed back to the grid, which leads to the high voltage of the power supply line and increases the loss of the circuit system. In order to solve the above problems, the common DC bus technology of pumping units can be used to cent...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J1/12H02P5/74H02P27/04H02P9/02
CPCH02J1/12H02P5/74H02P27/04H02P9/02
Inventor 不公告发明人
Owner 大庆富兴达石油科技有限公司
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