基于DSP的开关磁阻电机调速系统实验平台设计

【作者】 周春；

【导师】 潘再平；

【作者基本信息】 浙江大学 ， 电机与电器， 2004， 硕士

【摘要】 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，又在高度发展的电力电子和微机控制技术的支持下获得了良好的可控性能。因此，开关磁阻电机在驱动调速领域得到了广泛的应用。 本文主要围绕着基于DSP芯片、作为实验教具使用而设计了小功率开关磁阻电机调速系统(Switched Reluctance Driver,简称SRD)平台，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，进一步明确了在教学中加强对开发开关磁阻电机调速系统认识的意义。 其次，总结阐释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，详细推导了SRM电机的线性和非线性模型的，并在此基础上采用MATLAB仿真工具进行了一系列定性分析，获得了相应理论成果。 其四，基于DSP控制技术和电力电子变流技术，开发设计了一套开关磁阻电机调速系统实验平台。合理的系统设计方案使得SRM电机在控制上优越性得到了充分的发挥。 最后，对上述系统进行了实验研究。通过研究对比分析，进一步验证了和深化了前文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，对提高实验研究水平与提高实验效率效果明显。更多还原

【Abstract】 As the representative of modern electrical machines, switched reluctance machine combines the electrical machine theories with the modem 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 machine as motor is widely used in drive and speed regulation field.This paper mainly focuses on the design of the experimental platform for switched reluctance driver based on DSP, and has done some further theoretic research as well as experimental research.Firstly, this paper summarized and analyzed the advantages of SRD, 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, the linear and nonlinear mathematic models of SRM were discussed in details. Simulation of SRM using MATLAB software and a series of qualitative analysis were conducted.Fourthly, a set of practical SRD system for experimental is developed, which based on DSP control technique and power electronics converting technique. The reasonable design of this system fully displayed the flexibility of SRD control.Finally, experiments have been done on this practical system. The experimental results validated and deepened the conclusions drawn from theoretical research. The compare between the results from experiments and simulation also testified the practicability of the mathematical models presented in this paper. The results fully approved the usability and reliability for the system. It helps a lot to the efficiency of experimentation.更多还原