车用永磁同步电机控制及IGBT驱动技术研究

发布时间：2018-02-09 22:01

本文关键词： 电动汽车永磁同步电机驱动电路 IGBT 损耗　出处：《哈尔滨理工大学》2014年硕士论文　论文类型：学位论文

【摘要】：在当今能源短缺的情况下，电动车的发展变的尤为重要。车用电机控制器是电动汽车的最关键的部分之一，受到了国内外学者的高度重视，近些年来发展也非常迅速。永磁同步电动机因有高效率、高功率密度、调速性能好等优点，被用作电动汽车驱动电机，对其控制方法的研究很有意义。IGBT是永磁同步电机控制器的核心部件，然而IGBT驱动效果的好坏对电机驱动的安全性和可靠性有非常大影响，所以对IGBT驱动技术的研究很意义。本文首先对永磁同步电机建立了数学模型，并介绍了矢量控制方法和空间矢量脉宽调制（SVPWM）技术，并在MATLAB/Simulink环境下对SVPWM进行仿真。本论文以TMS320F2812为主控芯片，在该控制器中还包括了电源电路、信号检测电路和保护电路等，在论文中对每一硬件部分做了详细的介绍，分析了每个电路的功能和作用。同时介绍了软件流程，重点介绍了中断部分的软件流程，并对位置信号处理和校正做了详细说明。在硬件电路中着重分析了驱动电路部分。对IGBT的选型做了详细的介绍，并对驱动电路的要求做了进一步的说明。在本论文中驱动芯片选用的是HCPL-316J，而IGBT开通和关断所需的+15V和-5V电压，由所设计的开关电源电路提供。同时对IGBT的通态损耗和开关损耗做了分析，并对引起损耗的参数做了分析说明。最后为了验证控制器的特性，在实验台架上做了大量的实验，，验证了控制器的整体方案的设计。通过实验证明该控制器能够在电动车中可靠运行。
[Abstract]:Under the circumstance of energy shortage, the development of electric vehicle becomes more and more important. Motor controller is one of the most important parts of electric vehicle, and has been attached great importance by scholars at home and abroad. In recent years, permanent magnet synchronous motor (PMSM) has been used as a driving motor for electric vehicles because of its advantages of high efficiency, high power density and good speed regulation performance. The research on the control method is very significant. IGBT is the core component of PMSM controller. However, the effect of IGBT driving has a great impact on the safety and reliability of the motor drive, so it is very important to study the IGBT driving technology. In this paper, the mathematical model of permanent magnet synchronous motor is established, and the vector control method and space vector pulse width modulation (SVPWM) technology are introduced, and the SVPWM is simulated under the MATLAB/Simulink environment. In this paper, TMS320F2812 is used as the main control chip. The controller also includes power supply circuit, signal detection circuit and protection circuit. In this paper, each hardware part is introduced in detail, the function and function of each circuit are analyzed, and the software flow is introduced. The software flow of interrupt part is introduced emphatically, and the position signal processing and correction are explained in detail. The driving circuit is emphatically analyzed in hardware circuit. The selection of IGBT is introduced in detail. In this paper, HCPL-316J is selected as the driver chip, and the 15V and -5V voltages needed for IGBT turn-on and turn-off are introduced. At the same time, the on-state loss and switching loss of IGBT are analyzed, and the parameters that cause the loss are analyzed. Finally, in order to verify the characteristics of the controller, a large number of experiments have been done on the experimental bench. The overall design of the controller is verified, and it is proved by experiments that the controller can run reliably in electric vehicles.
【学位授予单位】：哈尔滨理工大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TM341

【引证文献】