發(fā)布時(shí)間：2023-04-02 22:06

　　磁控并聯(lián)電抗器(Magnetically Controlled Shunt Reactor,MCSR)鐵心同時(shí)受到交流和直流兩種激勵(lì)作用,而工作在多種復(fù)雜的激勵(lì)條件下。盡管近年來(lái)MCSR因其在電力系統(tǒng)中的廣泛應(yīng)用而備受關(guān)注,但由于MCSR本質(zhì)上的復(fù)雜性,需要采用工程仿真工具對(duì)其進(jìn)行分析。ANSYS Maxwell(ANSYS)是一個(gè)工業(yè)領(lǐng)先的高性能仿真軟件,它使用有限元分析來(lái)解決和分析許多工程問(wèn)題。它可用于分析磁場(chǎng)、電場(chǎng)、結(jié)構(gòu)等學(xué)科。ANSYS仿真方法不僅簡(jiǎn)單方便,而且在精度、時(shí)間和成本效率等方面具有突出的優(yōu)勢(shì)。本論文的主要研究?jī)?nèi)容是:對(duì)磁控并聯(lián)電抗器的主鐵芯結(jié)構(gòu)、鐵磁材料、磁化特性和運(yùn)行特性進(jìn)行了研究;分析了抽頭比、觸發(fā)角和磁飽和度對(duì)控制特性的影響;利用ANSYS建立了MCSR的三維結(jié)構(gòu)模型,并計(jì)算了不同直流偏磁激勵(lì)下繞組的磁場(chǎng)和電流波形,并與理論分析和數(shù)學(xué)推導(dǎo)進(jìn)行了比較。算例結(jié)果表明:MCSRs在一個(gè)周期內(nèi)左右磁芯柱間交替磁化和退磁,即兩側(cè)的磁閥在該周期內(nèi)交替飽和和非飽和;無(wú)論磁閥的飽和程度如何,在整個(gè)可調(diào)范圍內(nèi),大截面鐵心都不會(huì)出現(xiàn)飽和現(xiàn)象;工作電流與觸發(fā)角的關(guān)系近似為余弦曲線。...

【文章頁(yè)數(shù)】：72 頁(yè)

【學(xué)位級(jí)別】：碩士

【文章目錄】：
摘要
Abstract
1 Introduction
    1.1 General Overview
    1.2 Objectives of the Research Work
    1.3 Significance of the Research Work
    1.4 Organization of the Research Work
2 Introduction to Theory and Calculation of MCSR
    2.1 Core Structure and Working Principle of MCSR
        2.1.1 Core Structure Configuration
        2.1.2 Basic Working Principle
    2.2 MCSR Ferromagnetic Materials
    2.3 Magnetic Valve of MCSR
        2.3.1 Characteristics of Magnetic Valve
        2.3.2 Magnetic Circuit and Equations of Magnetic Valve
    2.4 Magnetic Field Analysis of MCSR Under Excitation
    2.5 Volt-Ampere Characteristics of MCSR
    2.6 Harmonic Characteristics of MCSR
    2.7 Equivalent Circuit of MCSR
        2.7.1 Equivalent Electric Circuit
        2.7.2 Relationship between Control Angle and Magnetic Saturation
        2.7.3 Relationship between Control Angle and Working Current
    2.8 Chapter Summary
3 Introduction to ANSYS Maxwell
    3.1 Importance of Using ANSYS
    3.2 Modeling Procedure for ANSYS
        3.2.1 Creating the Geometric Model
        3.2.2 Defining Material Properties
        3.2.3 Adding Excitation
        3.2.4 Assigning Boundary
        3.2.5 Generating Meshing
        3.2.6 Solution Type and Load Step Options
        3.2.7 Post Processing the Results
    3.3 Simulation and Results of MCSR
    3.4 Chapter Summary
4 Calculation and Simulation Example of MCSR Prototype
    4.1 Comparison and Analysis of Results
        4.1.1 The Distribution of the Magnetic Field
        4.1.2 Calculation and Simulation Results of control characteristics
        4.1.3 Calculation and Simulation Results of Magnetic Saturation Degree
        4.1.4 MCSR Harmonics and Time Difference
        4.1.5 Calculation and Simulation Results of the Inductance
    4.2 Chapter Summary
General Conclusion
Outlook
Acknowledgements
References
Appendix A
Appendix B
List of publications



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