基于PLC的直線同步電機控制系統的設計

電氣自動化論文編號:ZD202 論文字數:24980,頁數:64

摘 要
本文介紹了直線同步電機的發展、原理、結構和特點，以及它的控制方法。隨著節能要求的提高，直線同步電機逐漸應用于石油開采行業。在詳細了解游梁式抽油機和井外式直線電機抽油機的使用情況后，為了解決游梁式抽油機效率低、能耗高和井外式直線電機抽油機不能應用于斜井的問題，本課題設計了直線同步電機抽油機系統。
潛油式直線同步電機抽油機，顧名思義就是直線同步電機裝在井下的抽油機。這種抽油機也是采用直線電機做驅動裝置，不同的是將電機裝在井下，將定子固定在井壁，通過做直線運動動子驅動抽油裝置做往復運動實現抽油。不需要使用做垂直運動的抽油桿來驅動抽油泵，解決了斜井的抽油問題。這種抽油機能夠應用在斜井、深井，擴大的應用范圍，有非常好的應用前景。
文章主要設計了基于歐姆龍CMP1A可編程控制器和匯川MD320變頻器的潛油式直線同步電機抽油機控制系統；設計了上位機程序、PLC程序及上位機和下位機的信號通信。
該抽油機控制系統能夠實現抽油機高效運行，能夠達到節能降耗和提高產量的目的，并將大大提高抽油機系統自動化程度，節約油田的成本。該系統具有控制精度高，運行可靠性高，操作簡便等特點，達到了油田生產的要求。它還能夠應用在深井和斜井，具有一定的推廣價值。

關鍵詞：潛油式直線同步電機；抽油機；可編程控制器；組態王

Abstract
This paper introduced the development,principle,structure and features of linear synchronous motor(LSM),and the control methods of the LSM.With the improvement of energy-saving requirements.LSM is gradually applied to oil exploration industry.The paper learned more about the use of Beam Pumping Unit and Well Linear Motor-pumping Unit.In order to solve the problems of low efficiency,high energy consumption of BPU,and WLMPU can not be used for inclined shaft,the paper put forward a new design of  linear motor pumping unit whose motor is at the bottom of the oil well.
Submersible oil-pumping unit linear synchronous motor, as the name suggests is the linear synchronous motor mounted on the underground pumping unit.This unit is also used to do linear motor-driven devices.The difference is that motor will be installed at underground,the stator in the fixed wall.Do move in a straight line through the campaign-driven pumping device to do to achieve pumping back and forth movement.Do not require the use of the vertical movement of the rod to drive the pump,Inclined to solve the problems of pumping, this unit can be used in the inclined shaft. There is a very good prospect.
The paper designd a control system of PSLSM pumping unit which is based on OMRON PLC and huichuan MD320 inverter.Design of monitor and control procedure, PLC, inverter and a special-purpose transformer in this control system.
This pumping unit control system can realize high effect of oil pump;achieve the purpose of reducing energy consumption and improving output.It will put the pumping unit automation to a high degree,and save cost of oil field.This system has some characteristics which are high control precision,high running reliability and simple operation and has met the oil field requirements.It can be applied in deep well and inclined well and,had certain promotion value.

Keywords: Submersible Linear synchronous motor;Pumping unit;Programmable Logic Controller;Kingview

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