游梁式抽油机电动机优化控制策略及节能方法分析

发布时间：2024-03-13 18:58

　　石油的节能生产一直在能源效率环节具有战略性地位,在众多的抽油方式中,游梁式抽油机因其使用方便、机械性能好而成为一种最常用的抽油方式。由于哈萨克斯坦大部分油田都配备了梁式抽油泵,本文的研究目标是为配备游梁式抽油机的油田服务。由于电动机是游梁式抽油机的主要耗能元件。因此,解决这一问题并应用于改进游梁式抽油机感应电动机的性能具有重要的实用意义。由于石油是天然资源,有时提取量可能无法控制。这会导致感应电动机在井容量低的情况下过抽运操作,或者井容量高时造成很大的损耗。在这种情况下,电动机的智能运行对节能起着重要的作用。本文提出了游梁式抽油机电机的最优控制策略,以保证采用前景最好的节能方法。该方法采用星角变换,保证系统自动切换到最佳运行状态。本文所提出的星角自动转换方法的主要创新点是根据系统所经历的负载量进行星接和角接之间的切换。当负载较轻时,额定功率很高的电机会产生很大浪费。为了避免这种情况,星角自动转换方法将有助于确定系统操作的最佳切换时间和功率值。本文介绍了游梁式抽油机的基本结构和功率特性,研究了采油用异步电动机的功率损耗。此外,还研究了不同工况和不同电压下的变负载的影响。本文对最优功率值方...

【文章页数】：79 页

【学位级别】：硕士

【文章目录】：
摘要
Abstract
Chapter 1 Introduction
    1.1 Background Of Energy Saving
    1.2 Motivation Of The Problem Statement
    1.3 The Outline Of Thesis
Chapter 2 Overview Of Beam-Pump Unit System
    2.1 Methods Of Artificial Lift
        2.1.1 Electric Submersible Pumps
        2.1.2 Progressive Cavity Pumps
        2.1.3 Plunger Lift
        2.1.4 Hydraulic Pumping System
    2.2 Beam-Pump Unit System
        2.2.1. Methods Of Artificial Lift
        2.2.2. Performance and Characteristics
    2.3 Advantages And Limitations
Chapter 3 Wye-Delta Method
    3.1 Wye Delta As Energy Saving Method
    3.2 System Behavior and Characteristics
    3.3 The Power Relation of Delta-Wye Conversion
    3.4 Energy Saving Principle
        3.4.1 Delta-Wye Efficiency advantage
    3.5 Modes of operation
Chapter 4 Induction Motors
    4.1 Application of the Induction Motor In The Oil Field
    4.2 Types of Electric Motors
    4.3 Induction Motor Slip
    4.4 Induction Motor Basics
        4.4.1 Stator
        4.4.2 Rotor
    4.5 Induction Equivalent Circuit
    4.6 Power Loss Of Induction Motors
    4.7 Induction Equivalent Circuit
    4.8 Mechanical And Brush Friction Losses
    4.9 Mechanical And Brush Friction Losses
        4.9.1 Stator Copper Losses
        4.9.2 Rotor Copper Losses
        4.9.3 Mechanical Losses
        4.9.4 The Stray Losses
        4.9.5 Energy Saving Testing and Analysis
    4.10 Calculation Of The Recommended Power Condition
    4.11 Efficiency of the Induction Motor
Chapter 5 Power Loss And Energy Efficiency of Delta Wye
    5.1 Application of the Induction Motor In The Oil Field
        5.1.1 Downhole Losses
        5.1.2 Surface losses
    5.2 Energy Efficiency of the Pumping System
        5.2.1 Lifting efficiency
        5.2.2 Surface Mechanical Efficiency
        5.2.3 Motor Efficiency
        5.2.4. System Efficiency
    5.4 MATLAB Simulation of Analysis Of Wye-Delta Conversion Method
Chapter 6 Conclusion
References
Acknowledgement



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