In this paper, a new configuration of single DC source hybrid packed U-cell (H-PUC) converter with reduced number of components is proposed. The proposed H-PUC only requires one dc source, twelve power switches, and three capacitors to provide 23-level output voltage. It is comprised of two high voltage low frequency (LF) and low voltage high frequency (HF) sub-modules which leads to less power losses and higher efficiency of the proposed H-PUC converter. Moreover, a finite control set model predictive control (FCS-MPC) method is proposed to generate 23-level staircase output voltage with low THD and to regulate voltages of three capacitors to their desired values simultaneously. A real-time model of the proposed 23-level H-PUC converter and its suggested FCS-MPC are developed and implemented in OPAL-RT OP4510 platform to evaluate and validate the feasibility of the proposed H-PUC in grid-connected operation mode. The provided real-time implementation results verify and demonstrate the performance and viability of the proposed 23-level H-PUC and its associated FCS-MPC to provide low THD 23-level output voltage and all three capacitors voltages balancing.

中文翻译：

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组件数量减少的23级单DC源混合PUC（H-PUC）转换器拓扑：具有模型预测控制的实时实现

本文提出了一种新的配置，减少了组件数量的单直流源混合打包U单元（H-PUC）转换器。提议的H-PUC仅需要一个直流电源，十二个电源开关和三个电容器即可提供23电平的输出电压。它由两个高压低频（LF）和低压高频（HF）子模块组成，从而可减少所建议的H-PUC转换器的功率损耗并提高其效率。此外，提出了一种有限控制集模型预测控制（FCS-MPC）方法，以生成具有低THD的23级阶梯输出电压，并将三个电容器的电压同时调节至其期望值。在OPAL-RT OP4510平台上开发并实现了拟议的23级H-PUC转换器及其建议的FCS-MPC的实时模型，以评估和验证拟议的H-PUC在并网运行模式下的可行性。提供的实时实施结果验证并证明了所提出的23级H-PUC及其相关的FCS-MPC的性能和可行性，以提供低THD 23级输出电压和所有三个电容器电压平衡。