Performance Evaluation of CMLI with Various Fault Conditions

Gatla, Ranjith Kumar; K, N. V Prasad; Lu, Jianghua; Thati, Mahesh; Kumar, Devineni Gireesh; Rao, D S Naga Malleswara; Reddy, Kishore

doi:10.1109/icaecc54045.2022.9716690

Cited by 3 publications

(1 citation statement)

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“…The inverter's switching angles influence the output harmonic voltages. The generalized harmonic voltage objective function (OF) consists of the following form to achieve the above objectives [25]: 5), satisfying the constraint function (6) with objective function (8), can be solved by using Harris hawk optimization for minimum THD and optimal switching angles. The comparison between different switching control methods with the proposed SHEPWM control.…”

Section: Implementation Of Fundamental Switching Frequency Control (S...mentioning

confidence: 99%

Modelling of Symmetric Switched Capacitor Multilevel Inverter for High Power Appliances

Kumar¹,

Sireesha²,

Rao³

et al. 2023

JNMES

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While designing the inverter, the total harmonic distortion (THD) in the output is a major concern to decide its performance. In order to calculate the total harmonic distortion (THD) of a symmetric modular multilevel inverter (MMI) with switched capacitors, a Harris hawk optimization (HHO) was used in this study. Utilizing symmetric and identical DC sources, the suggested modular multilevel inverter is designed. The suggested topology may be expanded up to many levels and utilizes fewer switches to provide 9 levels of output than conventi1al cascaded H-bridge multilevel inverters. Using a low-frequency switching control approach known as selective harmonic elimination pulse width modulation, the switches are less stressed and the inverter output's THD profile is improved. Additionally, the switching angles of the MMI have been optimized by solving the non-linear equations of the SHEPWM using the Harris Hawk Optimizer. Ant colony optimization (ACO) and particle swarm optimization (PSO), two alternative optimizers, were compared in terms of the THD of the output. This comparison shows that the HHO delivers a lower THD than other optimization techniques approximately near to 5%, as per the IEEE-519 standard, and is thus more highly advised. Finally, a hardware configuration for the suggested inverter is implemented to confirm the simulation findings.

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Section: Implementation Of Fundamental Switching Frequency Control (S...mentioning

confidence: 99%