【摘要】 三电平逆变器以其优越的性能已经逐步取代传统的两电平逆变器,成为了大容量、中高压电机调速的主要实现方式之一.但由于其输出状态多,对控制算法也提出了更高的要求.在介绍了三电平逆变器的基本结构之后,分析了空间矢量脉宽调制(SVPWM)控制三电平逆变器的算法原理,最后给出了用MATLAB仿真的流程图和仿真结果,证明了三电平逆变器的优点,对其应用和开发具有借鉴作用.更多还原

【Abstract】 For its excellent performance, three-level converter has replaced the traditional two-level converter and became one of the main methods of speed modulation of large capacity high voltage motor. But various output states need high requirements for its control algorithm. Based on the concept of the basic structure, the algorithm of space voltage vector pulse width modulation is analysed, which can be used to control the three-level converter. Then the flow chart of simulation by MATLAB is demonstrated and the advantages of three-level converter is confirmed. The results can be used for further development of new converter.更多还原