A well testing machine control system

A control system and well testing rig technology, applied in the directions of comprehensive factory control, electrical program control, comprehensive factory control, etc., can solve the problems of low service life of switch components, cumbersome system stroke adjustment process, small torque, etc.

Active Publication Date: 2019-01-04
山东艾磁驱动科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This control method has obvious disadvantages. First, the torque of the inverter is small at low speed. When starting a large load, the impact on the inverter is large, and the impact on the power grid is also large. Secondly, the service life of the three-phase asynchronous motor is very limited. In addition, In the harsh environment of the field, the three-phase asynchronous motor must be replaced frequently. Again, the service life of the switching components is low, and the stroke adjustment process of the system is very cumbersome and inconvenient to operate.

Method used

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Embodiment Construction

[0024] The present invention will be further described below in conjunction with the accompanying drawings.

[0025] Such as Figure 1 to Figure 7 As shown, a well testing rig control system according to the present invention includes: a switched reluctance motor controller 1, a host computer controller 2, and the communication between the switched reluctance motor controller 1 and the host computer controller 2 is carried out through Modbus connect.

[0026] Among them, the upper computer controller 2 is a programmable logic controller (Programmable Logic Controller, PLC), from I0.0 to I2.2 are the input points of the upper computer controller 2, and from Q0.0 to Q1.7 are the upper computer The output point of the controller 2, the upper computer controller 2 realizes the communication based on the Modbus protocol with the switched reluctance motor controller 1 through programming. The upper computer controller 2 is connected to the switched reluctance motor controller 1 (t...

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Abstract

The invention relates to the field of well testing machine control, in particular to a well testing machine control system which comprises a switch reluctance motor controller and an upper computer controller. The switch reluctance motor controller and the upper computer controller are connected through a Modbus. According to the well testing machine control system, large torque during low speed of a well testing machine is achieved, impact on a power grid during system starting is avoided, system energy-saving effect is obvious, meanwhile, by controlling the given voltage of the switch reluctance motor controller, the phenomenon that load is lowered rapidly during starting is avoided, and well testing machine stroke adjusting is very easy and convenient.

Description

technical field [0001] The invention relates to the field of well testing machine control, in particular to a well testing machine control system. Background technique [0002] At present, most oilfield well testing machines use frequency converters to control three-phase asynchronous motors, and through simple relay control, the well testing machines can realize reciprocating reversing. This control method has obvious disadvantages. First, the torque of the inverter is small at low speed. When starting a large load, the impact on the inverter is large, and the impact on the power grid is also large. Secondly, the service life of the three-phase asynchronous motor is very limited. In addition, In the harsh environment of the field, the three-phase asynchronous motor must be replaced frequently. Again, the service life of the switching components is low, and the stroke adjustment process of the system is very cumbersome and inconvenient to operate. Contents of the invention...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B19/418
CPCY02P90/02
Inventor 李智王新生
Owner 山东艾磁驱动科技有限公司
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