无传感器直流无刷电机静止起动控制研究

【作者】 盛跃华；

【导师】 马安平；

【作者基本信息】 黑龙江大学 ， 信号与信息处理， 2009， 硕士

【摘要】 直流无刷电机具有结构简单、可靠性高、运行效率高、维护方便和调速性能好等优点。随着微处理器技术、电力电子技术、控制理论,以及低成本、高磁能积材料的发展,被广泛应用于各个领域。本论文对无位置传感器直流无刷电机的起动方法和起动控制进行了深入研究。首先,在详细说明直流无刷电机的基本结构组成和工作原理的基础上,分析比较多种无传感器起动方法的优缺点。结合本课题的特点深入研究短时检测脉冲转子定位起动法的原理,并对该方法做出了优化和改进,提出单相检测脉冲转子定位起动法。其次,以直流无刷电机(简称BLDCM)的数学模型为基础,在Matlab7.4 / Simulink的仿真环境下,建立起动过程仿真模型。通过仿真实验在理论上验证了脉冲检测转子定位起动法的正确性,为无位置传感器直流无刷电机静止起动方法的研究提供了理论保障。最后,应用基于XC164实验开发板,根据单相检测脉冲转子定位起动法的控制特点,对整个起动控制进行相应的软件设计,给出实验程序流程图,并对实验数据及结果进行深入分析,通过仿真实验验证了结果分析的正确性。更多还原

【Abstract】 The Brushless DC motor (BLDCM) with permanent magnet is used widely due to the advantages of high simple structure, reliability, high power density, high efficiency, and good performance, etc. It grows with the development of microcontrollers, power electronic devices, control theory and low cost rare earth permanent magnet. In this thesis, the research is achieved comprehensively about starting control and methods of the BLDCM without rotor position sensors.Firstly, on the basis of the structure and operation principle of the BLDCM, analysis and compare the advantages and disadvantages of sensorless starting methods. Combining the feature of my paper we research and improve the theory of short-time pulse rotor detected starting method. So we discuss a new starting method which is single phase pulse rotor detected starting method.Secondly, in order to prove the correctness of pulse detected starting method, the model of starting control system in Matlab 7.4/Simulink is built in the thesis, based on the mathematical model of BLDCM. The Simulink experiment provides a theoretical guarantee for zero speed starting method.Finally, applying XC164 experimental board and according to the characteristics of single phase pulse detected starting method, I make Software program design and devise the flow chat of program.更多还原