Multilevel inverters (MLI) are aligned with lower harmonics and less commutation losses, which offer high power capacity. MLI is one of the best widespread converters due to its ability to eliminate the harmonic distortion without dropping the converter power output. The cascaded MLI is utilized for a reduced number of switches. In this topology, the switching angles at fundamental frequency are attained by solving the selective harmonic eliminations using sine cosine algorithm. This attains the desired output voltage with the elimination of certain lower order harmonics. In this paper, the analysis of seven-level cascaded MLI is presented with the scheme of carrier-based modulation techniques i.e. Phase-Disposition (PD), Phase-Opposition Disposition (POD) and Alternative Phase-Opposition Disposition (APOD). The Artificial intelligence (AI) is carried out for PD technique. These techniques are capable of defining the required switching angles to eliminate the preferred values of harmonics. The harmonic contents of output voltage in carrier-based modulation are observed with the indices, such as the modulation index with frequency modulation index and amplitude modulation index. The simulation results are obtained for seven-level inverter using MATLAB/SIMULINK. The hardware implementation is carried out using Main Power Management IC TPS65217C Beagle Bone Black Board for seven-level open loop control to justify the achievement of the suggested topology.

多级逆变器 (MLI) 具有较低的谐波和较少的换向损耗，可提供高功率容量。MLI 是应用最广泛的转换器之一，因为它能够在不降低转换器功率输出的情况下消除谐波失真。级联 MLI 用于减少开关数量。在此拓扑中，通过使用正余弦算法求解选择性谐波消除来获得基频下的开关角。这通过消除某些低次谐波获得了所需的输出电压。在本文中，七级级联 MLI 的分析提出了基于载波调制技术的方案，即. 相配置 (PD)、相对配置 (POD) 和替代相对配置 (APOD)。人工智能 (AI) 是针对 PD 技术进行的。这些技术能够定义所需的开关角以消除谐波的优选值。载波调制输出电压的谐波含量是用调制指数、调频指数、调幅指数等指标来观察的。使用MATLAB/SIMULINK 获得了七电平逆变器的仿真结果。硬件实现是使用主电源管理 IC TPS65217C Beagle Bone Black Board 进行的，用于七级开环控制，以证明实现建议的拓扑结构是合理的。