内反馈斩波串级调速系统的研究

摘要

针对传统串级调速系统存在着功率因数低、谐波污染严重等缺点，设计了一种内反馈电机斩波串级调速系统。给出了该系统的拓扑结构并分析了调速原理，采用MATLAB软件中的SIMULINK模块搭建该系统仿真模型，并进行仿真验证。结果显示该系统具有良好的调速性能，解决了普通调速系统功率因数低、谐波含量高的缺点。%Aiming at existing low power factor, serious harmonic pollution etc disadvantages of traditional cascade speed drive sys- tem, an inner-feeding cascade speed drive system with chopper was designed. The topological structure of the system was given and the speed drive principle was analyzed. SIMULINK in MATLAB was adopted to build simulation model of the system and simulation veri- fication was carried out. The result shows that the system is with good speed drive performance, solving problems of low power factor and high harmonic etc.