毕业设计不对称桥式电路驱动的开关磁阻风力发电系统研究.docVIP

摘要 随着世界能源问题的日益突出，风力发电技术来越受到人们的重视，也同时成为各国学者的研究热点。 本文对开关磁阻电机在风力发电中的应用展开了研究．文中首先对当前风力发电技术的发展现状和前景进行了总结。阐述开关磁阻电机适用于风力发电的优势，明确了研究开关磁阻电机风力发电系统的意义。 其次文章先对开关磁阻发电机主电路结构和其工作原理进行了介绍，然后对电机进行了电感与转子位置角关系的分析、发电机能量转换的分析、绕组电流的分析，并在这些分析的基础上介绍了开关磁阻发电机的三种控制方法：角度位置控制（APC)、电流斩波控制(CCC)、PWM电压控制。 接下来文章介绍了利用理想电感模型的开关磁阻发电机数学模型，在MATALAB/M.file环境中编制发电系统的程序模型，对开关磁阻电机发电系统进行了仿真。 文章的最后是对整个系统仿真结果的说明和分析。所获得的仿真数据一方面验证了此系统的有效性，另一方面通过对仿真数据的分析研究，初步掌握开关磁阻发电机理想的运行情况，为今后进一步研究打下了基础． 关键词：开关磁阻发电机；风力发电；MATLAB Abstract As the energy sources consume increasing daily, wind power is paid great attention by more and more countries．And the technologies interests specialists and scholars in many countries． This paper gave the research and experiment on theories, which focuses on the application of switched reluctance generator in wind generation．Firstly, this paper summarized the actuality and the foreground of the technologies of wind generation．Presented several advantages of switched reluctance generator used in wind generation, and the significance of developing this system． Secondly paper introduced the operation principle of switched reluctance generator and the structure of its circuit Then analyses the relation between inductance and angle position, energy conversion in switched reluctance generator and the phase current．On the base of these analyse, paper introduced three control methods：The angle position control，the current chopping control and the PWM control． The next paper describes using ideal inductor model SRG model, in MATALAB/M.file environment making power generation system of program models, switched reluctance motor power generation system simulation. The last paper is on the whole system simulation results of description and analysis. The simulation data, on the one hand to verify the validity of this system, on the other hand through simulation data analysis studies grasped SRG ideal operating conditions for the future, provided the Foundation for further study. Keywords: Switched reluctance g