Design of an Optimized Asymmetric Multilevel Inverter with Reduced Components Using Newton-Raphson Method and Particle Swarm Optimization

被引：0

作者：

Gireesh Kumar D. ^{[1
]}

Venkata Sireesha N. ^{[2
]}

Ganesh A. ^{[3
]}

Kotb H. ^{[4
]}

Aboras K.M. ^{[4
]}

Zeinoddini-Meymand H. ^{[5
]}

Kamel S. ^{[6
]}

机构：

[1] Department of Electrical and Electronics Engineering, B v Raju Institute of Technology, Telangana, Narsapur

[2] Department of Information Technology, Institute of Aeronautical Engineering, Hyderabad, Telangana, Dundigal

[3] Department of Electrical Engineering, Maharishi Markandeshwar Engineering College, Maharishi Markandeshwar (Deemed to Be University), Ambala, Mullana

[4] Department of Electrical Power and Machines, Faculty of Engineering, Alexandria University, Alexandria

[5] Department of Electrical and Computer Engineering, Graduate University of Advanced Technology, Kerman

[6] Electrical Engineering Department, Faculty of Engineering, Aswan University, Aswan

来源：

Mathematical Problems in Engineering | 2023年 / 2023卷

关键词：

Electric inverters - Harmonic analysis - Harmonic distortion - Nonlinear equations - Particle swarm optimization (PSO) - Topology - Wave filters;

D O I：

10.1155/2023/9966708

中图分类号：

学科分类号：

摘要：

Multilevel inverters have great scope in current developments of grid-connected solar PV systems. Two-level inverters are the simplest kind of multilevel inverter available (MLI). As the number of output levels is raised, the total harmonic distortion decreases. In classic MLI topologies, more electronic components are utilized to get higher-level outputs, which raise the cost, complexity, and volume of typical MLI installations. By reducing the design components, the cost of the system will be reduced. Furthermore, the two- and three-level inverters produce constant dv/dt output, which increases the stress on the power switches. This research proposes an asymmetric MLI topology that is suitable for PV applications and utilizes less number of DC sources and switches. The proposed inverter is controlled by selective harmonic elimination-based pulse width modulation (SHEPWM) to eliminate the lower-order dominant harmonics. The nonlinear equations produced by the SHEPWM are solved for the switching angles of the proposed inverter using the Newton-Raphson (NR) method and particle swarm optimization (PSO) method for various modulation indexes. The performance of the proposed inverter is analyzed based on the total harmonic distortion (THD) of the output for different operating levels of the inverter by comparing similar topologies in the literature. The THD obtained by the NR method is 7.3% and by using PSO is 4.23% at 0.9 modulation index. © 2023 Devineni Gireesh Kumar et al.

引用

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