石油的節(jié)能生產(chǎn)一直在能源效率環(huán)節(jié)具有戰(zhàn)略性地位,在眾多的抽油方式中,游梁式抽油機(jī)因其使用方便、機(jī)械性能好而成為一種最常用的抽油方式。由于哈薩克斯坦大部分油田都配備了梁式抽油泵,本文的研究目標(biāo)是為配備游梁式抽油機(jī)的油田服務(wù)。由于電動(dòng)機(jī)是游梁式抽油機(jī)的主要耗能元件。因此,解決這一問(wèn)題并應(yīng)用于改進(jìn)游梁式抽油機(jī)感應(yīng)電動(dòng)機(jī)的性能具有重要的實(shí)用意義。由于石油是天然資源,有時(shí)提取量可能無(wú)法控制。這會(huì)導(dǎo)致感應(yīng)電動(dòng)機(jī)在井容量低的情況下過(guò)抽運(yùn)操作,或者井容量高時(shí)造成很大的損耗。在這種情況下,電動(dòng)機(jī)的智能運(yùn)行對(duì)節(jié)能起著重要的作用。本文提出了游梁式抽油機(jī)電機(jī)的最優(yōu)控制策略,以保證采用前景最好的節(jié)能方法。該方法采用星角變換,保證系統(tǒng)自動(dòng)切換到最佳運(yùn)行狀態(tài)。本文所提出的星角自動(dòng)轉(zhuǎn)換方法的主要?jiǎng)?chuàng)新點(diǎn)是根據(jù)系統(tǒng)所經(jīng)歷的負(fù)載量進(jìn)行星接和角接之間的切換。當(dāng)負(fù)載較輕時(shí),額定功率很高的電機(jī)會(huì)產(chǎn)生很大浪費(fèi)。為了避免這種情況,星角自動(dòng)轉(zhuǎn)換方法將有助于確定系統(tǒng)操作的最佳切換時(shí)間和功率值。本文介紹了游梁式抽油機(jī)的基本結(jié)構(gòu)和功率特性,研究了采油用異步電動(dòng)機(jī)的功率損耗。此外,還研究了不同工況和不同電壓下的變負(fù)載的影響。本文對(duì)最優(yōu)功率值方...

【文章頁(yè)數(shù)】：79 頁(yè)

【學(xué)位級(jí)別】：碩士

【文章目錄】：
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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