Unlock instant, AI-driven research and patent intelligence for your innovation.

Intelligent compensation monitoring system for oil pumping unit

A monitoring system and pumping unit technology, applied in the control system, reactive power compensation, AC motor control, etc., can solve the problems of increasing power consumption, consuming active power, increasing the burden of power supply transformers, etc., to ensure timeliness, improve Efficiency, the effect of reducing energy consumption

Pending Publication Date: 2019-11-22
无锡旭菱电子科技有限公司 +1
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current lags behind the voltage by a phase difference, causing the equipment to consume reactive power while consuming active power, resulting in an increase in the demand capacity of the grid, a decrease in power factor, and an increase in the line loss of the transmission line
In addition, within one operating cycle of the pumping unit, the motor will generate power to the grid twice due to the gravitational acceleration of the counterweight due to the up and down strokes. The traditional pumping unit does not have a feedback device and cannot automatically perform phase detection. The regenerative voltage is real-time Superimposed on the power grid, because of the peak-to-valley problem, there may be phenomena such as peak-to-valley superimposition, or peak-to-peak overlapping, which will further increase power consumption and increase the shock of the power supply network, increasing the burden on the power supply transformer

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Intelligent compensation monitoring system for oil pumping unit
  • Intelligent compensation monitoring system for oil pumping unit
  • Intelligent compensation monitoring system for oil pumping unit

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment 1

[0106] Specific embodiments 1. In this embodiment, the communication module connected between the pumping unit controller and the pumping unit cloud platform is a data transmission unit, and the data transmission unit is connected with the pumping unit through a data interface. The data transmission unit uses The model is Yitang PLC-505-W4, the data transmission unit and the cloud platform are connected through 4G network communication, and the cloud platform and the cloud platform monitoring terminal are connected through an Ethernet interface. Specifically, the data transmission unit refers to converting serial port data into IP data, or converting IP data into serial port data, and then performing long-distance transmission through a wireless communication network. Since most of the equipment cannot be connected to the wired network on site, this system uses the mobile network provided by the operator, inserts the SIM card of the phone into the data transmission unit, config...

specific Embodiment 2

[0109] This embodiment is a pumping unit speed compensation device, such as figure 1 , 5 , 6 shown.

[0110] Such as figure 1 As shown, the pumping unit motor is a three-phase motor, and the external three-phase power is connected to the three-phase grid. The power supply circuit of the pumping unit motor first rectifies the three-phase AC power into DC power, and then converts it into three-phase AC power through the first IGBT unit. Then output to the pumping unit motor. The first CPU realizes frequency conversion control of the pumping unit motor by controlling the first IGBT unit; the first CPU and the first CPU model in this embodiment are Renesas DF71253D50FAV#Z1.

[0111] The motor of the pumping unit is powered by a three-phase 380V power supply, and the circuit breaker QF controls the on-off of the power supply L1, L2, and L3. After the three-phase power supply passes through the circuit breaker QF, it is rectified by the rectifier bridge stack VD to become direct...

specific Embodiment 3

[0135] This embodiment is a pumping unit load compensation device, such as figure 1 , 2 , 3, 4, and 11.

[0136] The input current of the motor of the pumping unit determines the torque that the motor of the pumping unit can output. The required torque is the largest when located at the upper and lower dead points, so the first CPU needs to adjust the motor current of the pumping unit according to the load variation.

[0137] When the pumping unit starts to work, the first CPU controls the first IGBT unit to gradually increase the voltage, the motor current of the pumping unit gradually increases, and the motor of the pumping unit is soft-started.

[0138] After the motor of the pumping unit is started and enters the running state, if figure 1 As shown, the three-phase electrical connection input terminal of the motor of the pumping unit is connected to the Hall sensor H1, Hall sensor H2, and Hall sensor H3 with high sensitivity, Hall sensor H1, Hall sensor H2, and Hall sen...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses an intelligent compensation monitoring system for an oil pumping unit. Operation parameters are generated when an oil pumping unit is operated; an oil pumping unit acquisitionmodule acquires the operation parameters generated during operation of the oil pumping unit and uploads the operation parameters to an oil pumping unit controller; an oil well data acquisition moduleacquires and monitors oil well parameter information and uploads the oil well parameter information to a cloud platform through a data transmission module; the oil pumping unit controller is connectedto the cloud platform to obtain oil well parameter information, automatically makes compensation adjustment according to the obtained operation parameters fed back by the oil pumping unit collectionmodule, and sends the compensation adjustment to the cloud platform through the data transmission unit; the cloud platform receives and analyzes the monitoring data sent by the oil pumping unit acquisition module and the oil pumping unit controller; the cloud platform monitoring terminal is connected with the cloud platform and obtains monitoring information in real time so that the working stateof the oil pumping unit can be remotely monitored, and the working state of the oil pumping unit is controlled according to commands of workers. The operation state of the oil pumping unit is monitored and managed in real time in a unified mode through the cloud platform, energy consumption is greatly reduced, and efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of pumping units, in particular to an intelligent compensation monitoring system for pumping units. Background technique [0002] Because the current pumping unit system has defects such as high energy consumption, low efficiency, and inconvenient speed control, and the oil wells in the oil field are widely distributed, the cost of detection, management and maintenance is high. Since the load carried by the motor is a rod-piston load type during each cycle of oil pumping, the load requirements for different stroke heights of up and down strokes are variable torque types that change in real time. In order to meet the load torque at the maximum upper and lower dead points, the early pumping unit control system enlarged the capacity of the motor and electrical equipment, which is a typical operation mode of a large horse-drawn trolley. The output current produces a lot of reactive power, which not only causes ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/34G01R19/00G01R29/18G01P3/481H02P27/06H02J3/38H02J3/18H02J3/24H02J3/01E21B43/00
CPCG01R31/343G01R19/00G01R29/18G01P3/481H02P27/06H02J3/38H02J3/1821H02J3/24H02J3/01E21B43/12Y02E40/30Y02E40/40
Inventor 王琦丁国洪张立才佘然然
Owner 无锡旭菱电子科技有限公司