摘要:由于在传输过程中使用高于三阶的相位顺序可以带来一些好处,因此现如今有许多研究发展出现在了多相位机器的领域中。双三相异步电动机(六相异步电动机)就是其中一种。本文就双三相异步电动机的数学模型的建立过程使用了新的方式,在电动机功率与磁动势不变化的前提下,使其变换为一个等效的三相绕组。所以只要在等效成功的前提下,同样能搭建出在α-β两相静止坐标系中的双三相异步电动机的数学模型,并在MATLAB/Simulink上搭建仿真模型即可。文中对于一台极数为2,额定功率为1.1kW双三相异步电动机进行了数学模型的建立并进行仿真模型的搭建,随后对仿真模型的结果进行分析。最后得到结论,这种建模方式是正确的。71329
毕业论文关键词: 双三相异步电动机;绕组变换;仿真
Modeling and Simulation of Dual Three - phase Asynchronous Motor
Abstract: Due to the use of higher than three order phase sequence in the transmission process can bring some benefits, so now there are a lot of research and development in the field of multi phase machine. A dual three-phase asynchronous motor (six phase asynchronous motor) is one of them. This paper uses a new way of setting up the mathematical model of dual three-phase asynchronous motor the premise of the motor power and the magnetomotive force does not change, so that the three-phase winding is transformed into a equivalent. So long as the premise of equivalent success, also can build a mathematical model of dual three-phase asynchronous motor in two-phase stationary alpha beta coordinates, and in MATLAB/Simu The link simulation model is built in this paper. For a great number of 2, rated power 1.1kW dual three-phase asynchronous motor has been set up the mathematical model and simulation model were built, then the simulation results are analyzed. Finally, get the conclusion that the modeling method is correct.Key Words:Double three - phase asynchronous motor;Winding transformation;Simulation
目 录
1 引言 1
1.1 电动机的结构组成 1
1.2 异步电动机的种类 1
1.3 多相电动机的特点 1
1.4 多相电动机调速系统的发展历史 2
1.5 多相电动机调速系统的发展前景 3
2 双三相绕组和三相绕组之间的等效变换 3
3 等效三相异步电动机的数学模型建立方法 6
3.1 把ω-is-ψr(转速-定子电流-转子磁链)三者作为状态变量的状态方程 6
3.1.1 dq两相旋转动态坐标系中的状态方程 6
3.1.2 αβ两相静止坐标系中的状态方程 9
3.2 把ω-is-ψs(转速-定子电流-定子磁链)三者作为状态变量的状态方程 10
3.2.1 dq两相旋转动态坐标系中的状态方程 10
3.2.2 αβ两相静止坐标系中的状态方程 10
3.3 坐标变换 11
3.3.1 克拉克(Clark)转化 11
3.3.2 帕克(Park)转化 14
4 双三相异步电动机(六相异步电动机)仿真模型的建立 15
4.1 双三相异步电动机的数学模型建立