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Oil pumping unit well group flexible drive control system

A technology for drive control and pumping unit wells, applied in general control system, control/regulation system, program control, etc., can solve the problem of inability to reverse the recovery and utilization of electric energy, unfavorable energy saving and efficiency of pumping unit groups, and limited range of motor slip and other problems to achieve the effect of eliminating the phenomenon of reverse power generation, reducing installed capacity, and achieving energy efficiency levels

Inactive Publication Date: 2017-01-04
CHINA PETROLEUM & CHEM CORP +1
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AI Technical Summary

Problems solved by technology

However, due to relying on the characteristics of the motor itself, and the slip range of the motor is limited, it is limited to rely on the characteristics of the motor to realize the flexible operation of the pumping unit system
2. The pumping unit system equipped with frequency conversion controller also has certain flexible operation characteristics, and can also partially realize the suppression of reversed power generation, but it cannot recover and utilize reversed power at the same time, resulting in a waste of electric energy
The control method of single well and single unit is not only costly, but also information cannot be shared, and centralized control and management cannot be performed, which is not conducive to the overall energy saving and efficiency improvement of the pumping unit group

Method used

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  • Oil pumping unit well group flexible drive control system
  • Oil pumping unit well group flexible drive control system
  • Oil pumping unit well group flexible drive control system

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Embodiment Construction

[0021] In order to make the above and other objects, features and advantages of the present invention more comprehensible, the preferred embodiments are listed below and shown in the accompanying drawings in detail as follows.

[0022] Such as figure 1 as shown, figure 1 It is a structural diagram of the pumping unit group flexible drive control system of the present invention. The flexible driving control system of the well group of pumping units is composed of a plurality of single well flexible control units 4 and a lumped control unit 5 .

[0023] Each single-well flexible control unit 4 is correspondingly connected to one pumping unit 2, and the single-well flexible control unit 4 uses a DSP processor TMS320F28335 with 32-bit floating-point processing capability to detect the operating status of the pumping unit 2 in real time and output control quantities to change The output voltage and frequency of the frequency converter 11 in the single well flexible control unit 4...

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Abstract

The invention provides an oil pumping unit well group flexible drive control system. The oil pumping well group flexible drive control system comprises a plurality of single well flexible control units and a lumped control unit; each single well control unit is correspondingly connected to one oil pumping unit; each single well flexible control unit transmits a single well production parameter and a real time condition to a lumped control unit; the lumped control unit collects data information of all single wells in the well group to perform fusion, analyzes and calculation to output various control parameters corresponding to all single wells and transmits the various control parameters to the flexible control unit of each single well; after each single well flexible control unit receives the control parameters, the single well flexible control unit regulates the operation mode and operates according to the received parameters. The oil pumping unit well group flexible drive control system realizes well group optimization regulation and control by the means of the single well flexible control, improves integral energy efficiency level of the well group, changes a traditional optimization control mode which focus on the single well and achieves system comprehensive energy saving.

Description

technical field [0001] The invention relates to a pumping unit control device, in particular to a flexible drive control system for a pumping unit well group. Background technique [0002] The beam pumping unit commonly used in oil well production has the characteristics of "big horse-drawn trolley" and rapid load dynamic changes. The redundant capacity of the transformer is large, and the loss of the transformer is serious. The flexible operation of the pumping unit system means that when the pumping unit encounters load changes, the change process of the driving force on the pumping unit system is smooth, and the fluctuation range of the crank torque and power load of the pumping unit is relatively small and uniform. Flexible operation can reduce the impact of transmission gear impact intensity and load fluctuation on the power source. [0003] The current domestic technical measures with flexible operation characteristics mainly include the following aspects: 1. The use...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/418
CPCG05B19/41865Y02P80/10Y02P90/02
Inventor 李炜肖志勇郑炜博马坤王晓东郎立术胡晓峰周亮刘泱孙东刘向东隆益棉郑召梅郑淑芳李旭
Owner CHINA PETROLEUM & CHEM CORP
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