基于永磁同步电机数学模型的矢量控制理论、仿真、实验及应用研究

发布时间：2018-05-14 11:24

本文选题：电机控制 + 电机建模　；参考：《合肥工业大学》2017年硕士论文

【摘要】：本文针对永磁同步电机建模与控制进行研究,介绍了永磁同步电机的发展情况和研究背景,详尽地分析了永磁同步电机的结构。针对永磁同步电机的系统结构,高度理论化地搭建了永磁同步电机的数学模型。利用坐标系变换规律,将永磁同步电机的各个参数进行了量化处理。控制方面,本文概括了永磁同步电机的常见控制方式,对其优缺点进行了比较,之后根据不同特点选择了空间矢量控制方式(SVPWM)。针对其控制方式,本文进行了理论推导,介绍了永磁同步电机矢量控制的特点、方式以及理论基础,并在此基础之上,对空间矢量控制方式进行了详细的研究,通过引入扇区、基础矢量、作用时间等概念将任一矢量转化为基础矢量的合成作用,通过加入逆变器,将矢量的切换转化为桥臂开关的通断。针对空间矢量控制,提出了具体的实现方法,并且针对TI DSP芯片进行了具体分析,给出了时序图。通过MATLAB/Simulink模块进行了整体的仿真验证,搭建了永磁同步电机的仿真模型和空间矢量控制器模型,运用理论分析和计算机仿真,找到了空间矢量控制器的最优参数。接着,自主设计了永磁同步电动机的驱动控制器的硬件和软件部分,通过Visual Studio 2015软件设计了驱动器的监控界面,可以动态显示电机的详细运动状态。最后,通过将控制器放入实际的工程应用中进行检验,针对不同应用场合进行简单的调整,均能获得很好的效果;尤其在独轮车、穿梭车等实际应用,应用结果验证了控制器的实际性能。
[Abstract]:In this paper, the modeling and control of permanent magnet synchronous motor (PMSM) is studied. The development and research background of permanent magnet synchronous motor are introduced. The structure of permanent magnet synchronous motor is analyzed in detail. The mathematical model of permanent magnet synchronous motor is built up in theory. Each parameter of the magnetic synchronous motor is quantified. In the control aspect, the common control mode of permanent magnet synchronous motor is summarized, and its advantages and disadvantages are compared. After that, the space vector control mode (SVPWM) is selected according to the different characteristics. In view of its control mode, this paper has carried out a theoretical deduction and introduced the vector of permanent magnet synchronous motor. On this basis, the control mode of space vector control is studied in detail. By introducing the concept of sector, basic vector, action time and so on, any vector is converted into the synthesis of the basic vector. By adding the inverter, the switch of the vector is converted to the switching of the bridge arm switch. The space vector control method is put forward, and the TI DSP chip is analyzed and the time sequence diagram is given. The simulation model of the permanent magnet synchronous motor and the space vector controller model are built through the MATLAB/Simulink module, and the space is found by the theoretical analysis and the computer simulation. The optimal parameters of the vector controller. Then, the hardware and software parts of the drive controller of the permanent magnet synchronous motor are designed independently. The monitor interface of the driver is designed by Visual Studio 2015 software, which can dynamically display the motor's detailed motion state. Finally, the controller is tested in the practical engineering application by putting the controller into the test. A simple adjustment for different applications can achieve good results, especially in a wheelbarrow, shuttle and other practical applications, and the practical performance of the controller is verified by the application results.

【学位授予单位】：合肥工业大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TM341

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