Most of the asymmetrical reduced-component multi-level inverters (MLIs) can generate their maximum possible voltage levels; however, their total standing voltage (TSV) is comparatively higher. Here, a single-phase, multi-unit MLI configuration is proposed that can generate a maximum number of output voltage levels using minimum components and achieve lower TSV. Here, a single-phase generalized MLI unit is proposed to generate a more number of output voltage levels using lesser components and to achieve lower TSV. The inverter is further extended to a cascaded multi-unit MLI for high power applications. Further, a most optimal generalized multi-unit MLI is derived from the generalized topology that has designed with a minimum component and TSV for maximum voltage levels. The performance of the proposed MLI is compared with other similar existing MLIs in terms of the number of switches, the number of DC sources and TSV with an increase in voltage levels to prove its superiority. Further, a comparative study of voltage stress experienced on the highest voltage rated switches of the proposed most optimal MLI and the most popular CHB trinary is done for an increasing number of levels. The TSV of the proposed 11-level inverter is calculated as 21V_DC, which is much smaller as compared to the similar existing topologies. A MATLAB/Simulink based simulation and corresponding experimental results of the 11-level and 47-level inverters are presented at different modulation indices as well as under load variations to verify their effectiveness.

大多数非对称减少组件多电平逆变器 (MLI) 可以产生最大可能的电压电平；然而，它们的总耐压 (TSV) 相对较高。在这里，提出了一种单相、多单元 MLI 配置，它可以使用最少的组件生成最大数量的输出电压电平并实现更低的 TSV。在这里，提出了单相广义 MLI 单元，以使用更少的组件生成更多的输出电压电平并实现更低的 TSV。该逆变器进一步扩展为用于高功率应用的级联多单元 MLI。此外，最优化的广义多单元 MLI 源自广义拓扑，该拓扑为最大电压电平设计了最小组件和 TSV。所提出的 MLI 的性能在开关数量、直流电源数量和 TSV 方面与其他类似的现有 MLI 进行了比较，并增加了电压水平，以证明其优越性。此外，对建议的最优化 MLI 和最流行的 CHB 三元的最高额定电压开关所经历的电压应力的比较研究是针对越来越多的级别进行的。建议的 11 电平逆变器的 TSV 计算为 21V _DC，与类似的现有拓扑相比要小得多。11 电平和 47 电平逆变器的基于 MATLAB/Simulink 的仿真和相应的实验结果在不同的调制指数以及负载变化下呈现，以验证它们的有效性。