In recent times, impedance networks have been developed to overcome the limitations and problems of traditional VSI / CSI and various traditional dc-dc converter networks. From then on, impedance source converters replace the entire range of power electronic converters: dc-dc (converters), dc-ac (inverters), ac-dc (rectifiers), ac-ac frequency regulators (matrix converters). In addition, the impedance source networks are used in a wide range of applications like PV-Grid tied systems, wind energy systems, distributed generations, adjustable speed drives, UPS systems, battery/supercapacitor/flywheel energy storage systems, electric vehicles, electronic loads, and dc circuit breakers, etc. Several topological changes have occurred to improve the performance of conventional ZSIs. This paper provides a concise review of the state-of-the-art impedance source topologies. This paper categorized the impedance topologies based on their functionality, performance improvements, and switching configuration employed. This paper also demonstrates the fundamental structural similarities, advantages, and disadvantages of each topology, which helps the end-users in topology selection.

近年来，已开发出阻抗网络来克服传统VSI / CSI和各种传统DC-DC转换器网络的局限和问题。从那时起，阻抗源转换器就取代了整个电力电子转换器系列：dc-dc（转换器），dc-ac（逆变器），ac-dc（整流器），ac-ac频率调节器（矩阵转换器）。此外，阻抗源网络还被广泛应用，例如光伏并网系统，风能系统，分布式发电，变速驱动器，UPS系统，电池/超级电容器/飞轮储能系统，电动汽车，电子负载发生了几处拓扑更改，以提高常规ZSI的性能。本文简要概述了最新的阻抗源拓扑。本文根据阻抗拓扑的功能，性能改进和采用的开关配置对阻抗拓扑进行了分类。本文还演示了每种拓扑的基本结构相似性，优缺点，这有助于最终用户选择拓扑。