摘要
为了优化双级矩阵变换器输出性能,提高其电压利用率,本文在分析双级矩阵变换器的拓扑结构的基础上,提出在整流级采用有零矢量的空间矢量调制策略;在新的调制策略的思想下,通过对整流级和逆变级的解析变换,推导出其开关函数。通过仿真得到输出直流局部平均电压恒定,电压利用率达到86.6%,验证了该调制策略的正确性和可行性。
In order to optimize the output performance of the two-stage matrix converter,and improve the voltage utilization ratio of that. This article proposed the space vector modulation strategy that zero vector modulation strategy is used in the level of the rectifier,based on the Analysis of two-stage matrix converter topology;On the ideology of the new modulation strategy,the rectifier level and inverter level are analyzed and converted,and their switch functions are calculated. Based on simulation,the local average voltage of the output DC voltage is constant,and the voltage utilization rate is 86.6% and the result shows that the modulation strategy is correct and feasible.
出处
《电子设计工程》
2017年第22期170-173,177,共5页
Electronic Design Engineering
关键词
双级矩阵变换器
整流级有零矢量
开关函数
仿真
two-stage matrix converter
the rectifier level zero vector
switch functions
simulation
