Design and Analysis of a Novel Cascaded 15-Level Asymmetric Inverter Using PSO and Whale Algorithms

Kumar, Devineni Gireesh; Ganesh, Aman; Rao, D S Naga Malleswara

doi:10.1109/sefet48154.2021.9375752

Cited by 10 publications

(6 citation statements)

References 13 publications

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“…PSO is ideally suited to solving complex problems due to its low computation effort and quick computer coding. Initial values such as other traditional iterative methods are not required for PSO (Albert Alexander., 2015;Dishore S.V., 2020, D. G. Kumar., 2021.…”

Section: B) Particle Swarm Optimizationmentioning

confidence: 99%

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THD optimization in 15-level asymmetric reduced switch count multilevel PV inverter using optimization algorithms

Kumar¹,

Ganesh

Bhoopal³

2022

JER is an international, peer-reviewed journal that publishes f

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Philosophers and industries have focused on designing multilevel inverters, which use significantly fewer power switches and dc sources to achieve high power, low switching, and less harmonic output distortion for medium voltage applications. Even so, these multilevel inverters have some downsides like the use of many electronic components, electromagnetic interference (EMI), bulky driver circuit complexity, significant reverse recovery times, and voltage balancing issues. A modern asymmetrical multilevel inverter with fewer switches and drivers than standard topology is introduced in this article. The powerful analogy addresses traditional inverter topologies of a similar structure. The proposed MLI is relatively simple and easy to extend for many output levels. The proposed design of MLI is implemented for 15 level output with precise and high-quality near sinusoidal waveform using seven switches, three dc sources and three diodes and hence the volume, cost and driver circuit complexity is considerably reduced. The novelty in the proposed topology is that reduced ON state semiconductor switching devices. The output of the MLI is evaluated with the parameter of total harmonic distortion (THD). To minimize the THD, optimization algorithms such as GA, PSO, WOA and HHA were implemented at fundamental switching PWM control method. The comparative analysis of these algorithms on proposed inverter performance is integral for this research. The efficacy of this topology enhances the integration of renewable energy sources.

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Section: B) Particle Swarm Optimizationmentioning

confidence: 99%

“…This algorithm simulates humpback whales' social behaviour. WOA, like other population-based algorithms, uses a random solution (people) and three rules to update and develop candidate solutions in each stage that encircle the prey, spiral update position, and search for prey (D. G. Kumar., 2021).…”

Section: C) Whale Optimization Algorithmmentioning

confidence: 99%

THD optimization in 15-level asymmetric reduced switch count multilevel PV inverter using optimization algorithms

Kumar¹,

Ganesh

Bhoopal³

2022

JER is an international, peer-reviewed journal that publishes f

Self Cite

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“…Te inverter fnds applications in PV-fed UPS, propulsion systems, PV power integration, and batteryoperated vehicles and needs a simple and direct control method [21]. Terefore, the researchers concentrated on topological construction and modulation [22].…”

Section: Introductionmentioning

confidence: 99%

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

Kumar¹,

Sireesha

Ganesh

et al. 2023

Mathematical Problems in Engineering

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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.

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“…In addition, the proposed converter does not affect diode reverse recovery times, and capacitor voltage balancing and uses a simple gate control circuit due to the absence of bidirectional switches [18][19][20]. A low switching frequency control method is used for the proposed inverter to eliminate the lower-order harmonics [21][22]. A numerical technique, known as the Newton-Raphson method, is used to find a viable solution to the transcendental equations for determining the inverter's optimal switching angles.…”

Section: Introductionmentioning

confidence: 99%

Implementation of an Asymmetric Multilevel Inverter for Solar Photovoltaic Applications Using N-R Approach

Kumar¹,

Bhoopal²,

Ganesh³

et al. 2023

JNMES

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Two-level inverters are the most basic kind of multi-level inverter (MLIs). Total harmonic distortion diminishes as the number of output levels is increased. In classic MLI topologies, more electronic components are utilized to get higher-level outputs, which raises the cost, complexity, and volume of typical MLI installations. By reducing the use of power components, overall costs can be reduced. Further, the two and three-level inverters produce constant dv/dt output, which increases the stress on the power switches. This research proposed an asymmetric MLI topology that is suitable for PV applications and utilizes a minimum number of components. A selective harmonic elimination-based pulse width modulation (SHEPWM) is implemented for the proposed inverter to eliminate the lower-order dominant harmonics. The non-linear transcendental equations produced by the SHEPWM are solved for the switching angles of the proposed inverter using the Newton-Raphson approach. The performance of the inverter is analyzed based on the THD of output for different operating levels of the inverter. In this research, the NR method yielded a THD of 7.3% at a 0.9 modulation index. Also, the proposed inverter is applied to grid-connected solar PV systems for the analysis of THD.T The THD of the grid voltage is measured as 0.06% and the THD of the grid current is 4.8% with the proposed inverter which is acceptable as per the IEEE519 standards.

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Design and Analysis of a Novel Cascaded 15-Level Asymmetric Inverter Using PSO and Whale Algorithms

Cited by 10 publications

References 13 publications

THD optimization in 15-level asymmetric reduced switch count multilevel PV inverter using optimization algorithms

THD optimization in 15-level asymmetric reduced switch count multilevel PV inverter using optimization algorithms

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

Implementation of an Asymmetric Multilevel Inverter for Solar Photovoltaic Applications Using N-R Approach

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