多电平逆变器系统性拓扑结构优化设计方法综述

Review of systematic methods of multi-level inverter topology optimization

人们一直在不断地改进多电平逆变器拓扑结构,目的是在不影响其性能的情况下,使用的器件越少越好,或在某个技术或经济指标为最优或接近最优的情况下,获得电路的最优结构。但目前的研究大多停留在简单的改进,即实验尝试的方法上,至今没有一种广义通用性的方法来优化拓扑结构。首先对一些具有一定通用性、系统性的逆变器优化设计方法进行总结,然后简要介绍了优化理论特别是遗传编程在电路自动优化设计上的应用,试图在多电平逆变器拓扑结构方面探索一种系统的、理论性的通用优化设计方法。

In order to get the best performance within fewer components,or obtain the optimal structure of the circuit when one technical or economic indicator is optimal or near optimal,engineers and technicians continue to improve the multi-level inverter topology.The current study has remained mostly on simple improvements or experimental attempts method,and has not a systematic and theoretical approach so far.Some inverter topology optimization methods were summarized with certain versatility,and then the application of optimization theory was introduced,especially the genetic programming in the circuit automatically design optimization.Finally,a common optimization method based on the multi-level inverter optimal design was attempted to be explored.