单相单,双极性SPWM仿真课设

目录 引言 ................................................................................................................. 1 1.单相SPW M 结构及其工作原理 ................................................ 2 1.1PW M 控制的基本原理 .......................................................... 2 1.2 SPW M 基本原理 ................................................................... 2 2.单相PW M 逆变电路及其控制方法 ........................................ 3 2.1 单相SPW M 逆变电路结构 ......................................................... 3 2.2 单相SPW M 逆变电路的控制方法 ........................................... 3 2.2.1 计算法和调制法 ........................................................................ 3 2.2.2 调制度 ........................................................................................ 4 2.2.3 异步调制与同步调制 ................................................................ 4 2.2.4 采样方法 .................................................................................... 4 2.2.5 单极性与双极性控制方式 ........................................................ 5 3.MATLAB 仿真建模 ............................................................................ 6 3.1 单极性 SPW M 逆变电路建模 ............................................... 6 3.1.1 单极性 PW M 逆变主电路建模 ................................................ 7 3.1.2 单极性 SPW M 逆变控制电路建模 .......................................... 8 3.2 双极性 SPW M 逆变电路建模 .............................................. 9 3.2.1 双极性 SPW M 逆变主电路建模 .............................................. 9 3.2.2 双极性 SPW M 逆变控制电路建模 ........................................ 10 4.仿真结果 ................................................................................................. 11 4.1 单极性 SPW M 仿真结果 ..................................................... 11 4.2...