【作者】 刘芸芸；

【导师】 吴建华；

【作者基本信息】 浙江大学 ， 电机与电器， 2005， 硕士

【摘要】 本课题由国家自然科学基金(50277033)资助。 开关磁阻电机是电机技术与现代电力电子技术、微机控制技术相结合的产物,既具有结构简单坚固、成本低、容错能力强,耐高温等优点,又在高速发展的电力电子和微机控制技术的支持下获得了良好的调速性能。因此,开关磁阻电机在驱动调速领域内得到了日益广泛的重视。 本课题主要以16位单片机芯片80C196KC为核心控制单元,设计了小功率开关磁阻电机调速系统(Switched Reluctance Drive,简称SRD),并展开了进一步的理论研究和实践探索。 首先,本文结合大量的文献资料,全面总结和分析了当前开关磁阻电机调速系统的几大优势,进一步明确了在科研中加强开发开关磁阻电机调速系统的意义。 其次,总结阐述了开关磁阻电机的运行和控制机理,以及在各种运行状态下各控制方式的性能比较。 其三,基于单片机控制技术和电力电子变流技术,开发设计了一套以16位单片机80C196KC芯片为核心控制器的高性能直接数字控制系统。设计了各个功能模块,包括功率变换器、过流保护电路、单片机外围电路以及人机接口等等。 其四,利用汇编语言与C语言开发设计了一套开关磁阻电机调速系统软件。结合开关磁阻电机自身的特点,采用电压PWM斩波控制与PI算法设计了该系统软件,使得SRD在硬件设计和软件设计合理相配合的基础上其良好的调速性能得到充分的发挥,并详细地按功能划分,分别设计了软件系统的各子模块,以方便改写与扩展,从而方便程序的可持续使用性。 其五,针对当前广泛应用的模糊控制在SRD中的应用做了阶段性的研究与分析,通过仿真结果得出了模糊控制技术比常规控制技术更具优越性的结论。 此外,对上述系统进行了实验研究。通过研究对比分析,进一步验证和深化了上述所取得一些理论成果,同时也表明系统设计合理,易于使用,性能可靠。更多还原

【Abstract】 As the representative of modern electrical motors, switched reluctance motor combines the electrical motor theories with the modern power electronics technique and the advanced microprocessor control technique, which not only has low-cost strong structure, good fault-tolerant and heat-resistant capability but also has excellent controllability. Thus, switched reluctance motor is widely regarded in drive and speed regulation field.This paper mainly focuses on the design of the system for switched reluctance drive based onMCS-96--------80C196KC, and has done some further theoretic research as well asexperimental research.Firstly, this paper summarized and analyzed the advantages of switched reluctance drive, further made the significance of developing this knowledge of SRD system clear.Secondly, this paper summarized how switched reluctance generator works and how to control it and the compare based on each control principle.Thirdly, in this chapter, a set of practical SRD’s hardware system is developed, which is based on 16 bits SCM control technique and power electronics converting technique.Fourthly, a set of practical SRD software system for experimental is developed, which based on assemble language and C language. The reasonable design of software fully displayed the flexibility of SRD control.Fourthly, the application of FUZZY control technique on SRD is analyzed. The experimental results manifest that fuzzy control technique has more advantage than PID control technique.Finally, The experimental results validated and deepened the conclusions drawn from theoretical research. The results fully approved the usability and reliability for the system. It helps a lot to the efficiency of experimentation.更多还原