六相异步电机缺相运行性能分析

论文编号:JD967   论文字数:15535,页数:51

摘要
    与三相电机驱动系统相比，多相电机系统在大功率、高可靠性和低直流电压供电应用场合具有明显优势，然而，作为一种新技术，多相电机的控制在理论和实践中依然存在着大量的知道研究和探讨的问题。
    本文对多相电机的建模、缺相运行的控制技术进行了研究，并以六相感应电机为对象，进行了仿真和分析研究。
    论文首先分析了多相感应电机数学模型和谐波分析，并对多相感应电机逆变器供电情况下的时空谐波进行了分析，建立了六相感应电机静止坐标系下的仿真模型并给出了Matlab/Simulink实现的具体步骤，对六相感应电机的特性进行了分析研究。分析了多相电机各相电流电压、定子的磁量以及各空间矢量的作用及对谐波的影响。
    论文还建立了多相电机在缺相运行时的动态数学模型，并对六相电机缺相运行进行了仿真研究。研究了缺相时各相电流电压的变化，定子磁量的改变，转速和转矩的变化、以及带载能力的改变。
    以Matlab/Simulink搭建了六相感应电机的模型以及六相电机缺相的模型，完成了相关的实验和分析。以对多相感应电机的运行有了一定的认识，对多相电机的缺相有了理性的认识。
    通过对六相电机以及缺相的仿真对Matlab/Simulink的功能运行能熟练的运行，为以后的学习和研究打下了坚实的基础。
关键词：六相异步电机 缺相运行 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

目录

摘要 I

Abstract II

1 绪论 1
1.1 引言 1
1.2 多相电机数学模型的建立 1
1.3 六相感应电机的建模与仿真 2
1.4 六相电机缺相仿真的建立与分析 2
1.5 多相感应电机调速系统研究的发展现状 2
1.6 本课题的研究背景和本文的主要工作 4
2. 多相感应电机数学模型 6
2.1 自然基下多相感应电机数学模型 6
2.2 多相感应电机矢量空间的解耦变换 8
2.3 本章小结 8

3 仿真软件（MATLAB /Simulink）的介绍 10
3.1  MATLAB的概述 10
3.2 MATLAB产生的历史背景 10
3.3 MATLAB的语言特点 11
3.4 Simulink的介绍 12

4. 六相感应电机的建模与仿真 14
4.1 六相感应电机绕组结构 14
4.2 六相感应电机的数学模型 15
4.3 六相感应电机仿真模型 18
 4.4 结果与分析 22

5 六相感应电机缺一相的建模与仿真 29
5.1 前言 29
5.2 多相感应电机缺相运行的动态数学模型 29
5.3六相感应电机缺一相时的动态数学模型 30
5.4感应电机缺一相时的建模与分析 34
5.5本章小节 37

6 六相感应电机缺两相的建模与仿真 38
6.1 六相感应电机缺两相运行时的动态数学模型 38
6.2感应电机缺两相正交时的建模与分析 39
6.3本章小节 43
7 结论与展望 44
7.1全文工作总结 44
7.2 今后工作的展望 44

致谢 45
参考文献 46

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