中文说明：资源描述多电平逆变器拓扑结构可以在更高的电压和更高的功率下工作传统的两电平变换器。此外，多级转换降低了输出变量谐波失真，有时，尽管设备计数增量，转换损失也可以通过增加的数量减少。谐波通过减少失真实现的数目的增加，可用于进一步减少逆变器的载波频率降低开关损耗。甚至减少更多的开关频率不降低输出频谱，我们控制的三角形载波波形斜坡。首先，为了实现这一目标，已创建的分析模型，以预测逆变器输出电压谱，根据不同的参数：幅度调制指数毫安，逆变器的输入源的电压分布，和四个载波斜坡
English Description：
Application backgroundMultilevel inverter (MI) topologies can work at higher voltage and higher power than conventional two-level converters. In addition, multilevel conversion reduces the output variables harmonic distortion and, sometimes, in spite of the devices-count increment, the conversion losses can also decrease by increasing the number of levels. The harmonic distortion reduction achieved by increasing the number of levels, can be used to further reducing the switching losses by decreasing the inverter carrier frequencies. To reduce even more the switching frequency without degrading output spectrum, we control the triangular carrier waveforms slopes. First, to achieve this target, two analytical models have been created in order to predict the inverter output voltage spectrum, depending on diverse parameters: the amplitude modulation index MA, the voltage distribution K of the inverter