Rod pumped well group control system based on direct current bus

A technology of DC bus and pumping unit, which is used in the control of multiple AC motors, emergency protection circuit devices for limiting overcurrent/overvoltage, and the conversion of irreversible DC power input into AC power output, etc. The cost of the cabinet is not the same, the price of the inverter control cabinet is high, and the oil extraction plant is unacceptable, etc., to avoid theft of electricity, prevent large fluctuations and overvoltage, and reduce the cost of the system

Inactive Publication Date: 2013-12-04
CHINA PETROLEUM & CHEM CORP +1
View PDF9 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The latter is more technically difficult and more expensive
In addition, due to the different technical means adopted, the cost of the control cabinet is also different, but overall, the price of the i

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
  • Rod pumped well group control system based on direct current bus
  • Rod pumped well group control system based on direct current bus
  • Rod pumped well group control system based on direct current bus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] In order to make the above and other objects, features and advantages of the present invention more comprehensible, preferred embodiments are listed below and described in detail in conjunction with the accompanying drawings.

[0030] Such as figure 1 as shown, figure 1 It is a structural diagram of the pumping well group control system based on the DC bus of the present invention. The pumping well group control system based on the DC bus includes a high-voltage switch 1 , a transformer 2 , an air switch 3 , a rectifier filter device 4 and an inverter terminal controller 5 . The high-voltage switch 1 is connected with the input end of the rectification filter device 4 after connecting the transformer 2 and the air switch 3 in sequence, and the output end of the rectification filter device 4 is connected with the input end of the inverter terminal controller 5, and the inverter terminal control The output end of the device 5 is connected with the pumping unit 6. There...

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 provides a rod pumped well group control system based on a direct current bus. The rod pumped well group control system based on the direct current bus comprises a transformer, a rectification filter device and a plurality of inverter terminal controllers. The transformer reduces a high-voltage power source to a 380V or middle-high voltage three-phase alternating-current power source, the rectification filter device transforms the three-phase alternating-current power source to direct current electric energy, the inverter terminal controllers transform the direct current electric energy to alternating current electric energy and supply the alternating current electric energy for multiple pumping units, and real-time monitoring and control are carried out on the running conditions of the inverter terminal controllers. The rod pumped well group control system based on the direct current bus solves the problems that existing equipment is poor in power, high in cost and the like, and has the advantages of being high in energy-saving efficiency, low in cost and capable of preventing the sharp fluctuation or overvoltage of the voltage of the direct current bus and achieving power transmission without voltage boosting for long-distance oil wells where power is supplied to multiple wells through one system.

Description

technical field [0001] The invention relates to a pumping well group control system, in particular to a pumping well group control system based on a direct current bus. Background technique [0002] At present, there are various detection and control methods for pumping units and driving motors in China. For example, for the purpose of improving the process and increasing the recovery rate, the pumping units are equipped with inverter governors and dynamometer test analysis. instrument, slip motor, pole-changing speed regulation; in view of the low efficiency and low power factor of the pumping unit due to the long-term state of "big horse-drawn trolley", the energy-saving control motor and step-down voltage are adopted in order to save energy and reduce consumption. Energy saving and Δ / Y connection control, as well as the so-called super energy saving device that realizes energy saving through intermittent control of the pumping unit, etc. The control of pumping units in f...

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
IPC IPC(8): H02P5/74H02M7/42H02H9/04E21B43/00
Inventor 薛胜东张加胜秦延才刘向军刘鹏田承村王兴俊张玲王涛
Owner CHINA PETROLEUM & CHEM CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap