六相異步電機缺相運行性能分析

電子機電論文編號:JD967   論文字數:15535,頁數:51

目錄

摘要 I

Abstract II

1 緒論 1
1.1 引言 1
1.2 多相電機數學模型的建立 1
1.3 六相感應電機的建模與仿真 2
1.4 六相電機缺相仿真的建立與分析 2
1.5 多相感應電機調速系統研究的發展現狀 2
1.6 本課題的研究背景和本文的主要工作 4
2. 多相感應電機數學模型 6
2.1 自然基下多相感應電機數學模型 6
2.2 多相感應電機矢量空間的解耦變換 8
2.3 本章小結 8

3 仿真軟件（MATLAB /Simulink）的介紹 10
3.1  MATLAB的概述 10
3.2 MATLAB產生的歷史背景 10
3.3 MATLAB的語言特點 11
3.4 Simulink的介紹 12

4. 六相感應電機的建模與仿真 14
4.1 六相感應電機繞組結構 14
4.2 六相感應電機的數學模型 15
4.3 六相感應電機仿真模型 18
 4.4 結果與分析 22

5 六相感應電機缺一相的建模與仿真 29
5.1 前言 29
5.2 多相感應電機缺相運行的動態數學模型 29
5.3六相感應電機缺一相時的動態數學模型 30
5.4感應電機缺一相時的建模與分析 34
5.5本章小節 37

6 六相感應電機缺兩相的建模與仿真 38
6.1 六相感應電機缺兩相運行時的動態數學模型 38
6.2感應電機缺兩相正交時的建模與分析 39
6.3本章小節 43
7 結論與展望 44
7.1全文工作總結 44
7.2 今后工作的展望 44

致謝 45
參考文獻 46

摘要
    與三相電機驅動系統相比，多相電機系統在大功率、高可靠性和低直流電壓供電應用場合具有明顯優勢，然而，作為一種新技術，多相電機的控制在理論和實踐中依然存在著大量的知道研究和探討的問題。
    本文對多相電機的建模、缺相運行的控制技術進行了研究，并以六相感應電機為對象，進行了仿真和分析研究。
    論文首先分析了多相感應電機數學模型和諧波分析，并對多相感應電機逆變器供電情況下的時空諧波進行了分析，建立了六相感應電機靜止坐標系下的仿真模型并給出了Matlab/Simulink實現的具體步驟，對六相感應電機的特性進行了分析研究。分析了多相電機各相電流電壓、定子的磁量以及各空間矢量的作用及對諧波的影響。
    論文還建立了多相電機在缺相運行時的動態數學模型，并對六相電機缺相運行進行了仿真研究。研究了缺相時各相電流電壓的變化，定子磁量的改變，轉速和轉矩的變化、以及帶載能力的改變。
    以Matlab/Simulink搭建了六相感應電機的模型以及六相電機缺相的模型，完成了相關的實驗和分析。以對多相感應電機的運行有了一定的認識，對多相電機的缺相有了理性的認識。
    通過對六相電機以及缺相的仿真對Matlab/Simulink的功能運行能熟練的運行，為以后的學習和研究打下了堅實的基礎。
關鍵詞：六相異步電機 缺相運行 性能分析

AbstractCompares with the three-phase machine driving system, the polyphase machine system in the high efficiency, redundant reliable and the low DC voltage power supply application situation has the obvious superiority, however, takes one kind of new technology, polyphase machine's control still exists in the theory and the practice massive knows the research and the discussion question. This article to polyphase machine's modelling, lacked the control technology which moved to conduct the research, and take six asynchronous machines as the object, has carried on the simulation and the analytical study. The paper has first analyzed the heterogeneity asynchronous machine mathematical model harmonious wave analysis, and has carried on the analysis to the heterogeneity asynchronous machine invertor power supply situation's space and time overtone, has established under six asynchronous machine static coordinate system's simulation model and has given the concrete step which Matlab/Simulink realizes, has conducted the analytical study to six asynchronous machine's characteristic. Has analyzed the polyphase machine various interphase currents voltage, stator's magnetic mass as well as various space vector function and to the overtone the influence. The paper has also established the polyphase machine when lacks moves the dynamic mathematical model, and lacked to six electrical machinery moves has conducted the simulation research. Has studied lacks when various interphase currents voltage change, the stator magnetic mass change, the rotational speed and the torque change, as well as the belt carries ability the change. Has built six asynchronous machine's model as well as six electrical machinery lack the model by Matlab/Simulink, has completed the related experiment and the analysis. By had certain understanding to the heterogeneity asynchronous machine's movement, lacked to the polyphase machine had the rational understanding. Through as well as lacks to six electrical machinery the simulation to the Matlab/Simulink function movement can the skilled movement, has built the solid foundation for the later study and the research. key word: Six asynchronous machines lack the performance characteristic analysis