Harmonics Minimization in MLI Using Grasshopper Optimization Algorithm

Chew, W. T.; Yong, W. V.; Ong, S. L.; Leong, J. H.

doi:10.1080/00207217.2021.1966660

Cited by 7 publications

(4 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Zero-sequence harmonics are triplen harmonics that can be minimized by reducing the voltage amplitude of harmonics of order 3, 9, 15, and so on. ZHF defined as in equation ( 26) is engaged to assess the zero sequence harmonics and is written as follows [36], [37].…”

Section: Resultsmentioning

confidence: 99%

“…However, to find the ZHF for our three cases, we will consider harmonics of order n = 15 and beyond because we have applied the SHE to eliminate harmonics of order 3 and 9. DHF can be expressed as [36], [37]. The 3-, 5-, and 13-level MLI output voltage waveforms where constructed using notch angles as mentioned in Table I, III and V, respectively.…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Selective Harmonic Elimination Notch Angle Calculation Using THD and ZHF Benchmarks for Cascaded Multilevel Inverters

Shami,

Kashif,

Aslam

et al. 2023

IEEE Access

View full text Add to dashboard Cite

This paper presents a detailed comparison of eliminated and non-eliminated harmonics for 3-level, 5-level and 13-level cascaded multilevel inverter. For this research, three different types of cascaded H-Bridge multilevel inverters are considered where each cascaded multilevel inverter generates a different output voltage, but the number of notch angles in all the three cases are kept identical. A unified approach is adopted to derive the mathematical model of each multilevel inverter output voltage waveform, RMS of output voltage, RMS of fundamental component, selective harmonic elimination system of equations for the low order harmonics elimination and output voltage total harmonic distortion. It is shown that since selective harmonic elimination system of equations can be expressed as a function of the notch angles, hence notch angles are determined while taking in account only those harmonics to be eliminated. The Newton-Raphson method is proposed to resolve the nonlinear transcendental equations of selective harmonic elimination for the three multilevel inverter cases. Consequently, once the notch angles are determined, all three multilevel inverters are analyzed by comparing Total Harmonic Distortion and Zero-Sequence Harmonics Factor. The elimination of triplen-harmonics by evaluating them in the non-linear transcendental system of equations is a significant contribution. The theoretical and simulated results are presented to verify the validity of the proposed work.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Selective Harmonic Elimination Notch Angle Calculation Using THD and ZHF Benchmarks for Cascaded Multilevel Inverters

Shami,

Kashif,

Aslam

et al. 2023

IEEE Access

View full text Add to dashboard Cite

show abstract

“…On the other hand, the selective harmonic elimination pulse width modulation (SHEPWM) technique produces switching signals at the fundamental frequency of switching. In this method, decreasing the switching frequency causes the switching losses to decrease and the efficiency to increase [4,5]. In SHEPWM, the Fourier series representing the fundamental components and harmonics of the MLI output voltage waveform is formulated with a set of nonlinear transcendental equations.…”

Section: Introductionmentioning

confidence: 99%

Investigation of Recent Metaheuristics Based Selective Harmonic Elimination Problem for Different Levels of Multilevel Inverters

2023

View full text Add to dashboard Cite

Multilevel inverters (MLI) are popular in high-power applications. MLIs are generally configured to have switches reduced by switching techniques that eliminate low-order harmonics. The selective harmonic elimination (SHE) method, which significantly reduces the number of switching, determines the optimal switching moments to obtain the desired output voltage and eliminates the desired harmonic components. To solve the SHE problem, classical methods are primarily employed. The disadvantages of such methods are the high probability of trapping in locally optimal solutions and their dependence on initial controlling parameters. One solution to overcome this problem is the use of metaheuristic algorithms. In this study, firstly, 22 metaheuristic algorithms with different sources of inspiration were used to solve the SHE problem at different levels of MLIs, and their performances were extensively analyzed. To reveal the method that offers the best solution, these algorithms were first applied to an 11-level MLI circuit, and six methods were determined as a result of the performance analysis. As a result of the evaluation, the outstanding methods were SPBO, BMO, GA, GWO, MFO, and SPSA. As a result of the application of superior methods to 7-, 11-, 15-, and 19-level MLIs according to the IEEE 519—2014 standard, it has been shown that BMO outperforms in 7-level MLI, GA in 11-level MLI, and SPBO in 15- and 19-level MLIs in terms of THD, while in terms of output voltage quality, GA in 7-level MLI, BMO in 11-level MLI, GA and SPSA in 15-level MLI, and SPSA in 19-level MLI come forward.

show abstract

“…Improved whale optimization algorithm is used to optimize the switching angles of a single phase 5 and 7 level multilevel inverters (MLIs) [21]. Grasshopper optimization algorithm is used for optimizing switching angles applied to a three-phase 7-level cascaded H-bridge multilevel inverter [22]. To minimize the THD in cascaded MLI, the hyper-spherical search algorithm is used [23].…”

Section: Introductionmentioning

confidence: 99%

Minimization of total harmonic distortion in neutral point clamped multilevel inverter using grey wolf optimizer

Izzaqi

Windarko²,

Qudsi³

2022

IJPEDS

View full text Add to dashboard Cite

<span lang="EN-US">The inverter has been attracting researchers for their application in renewable energy. So far, multilevel inverter is considered as low distortion class, which produces multilevel output voltage imitating a pure sine waveform. However, the needs for free distortion of output voltage have been motivating to improve multilevel pulse width modulation PWM generation method. In this paper, the modified PWM technique is proposed to reduce the voltage total harmonics distortion (THD) of multilevel inverter. This modulation technique is then applied to control a single-phase threelevel neutral point clamped multilevel inverter (NPC-MLI). Grey wolf optimizer (GWO) algorithm is utilized to generate optimal amplitude and phase shift of modified reference signal. The GWO algorithm is then compared with other optimization algorithms such as differential evolution (DE), human psychology optimization (HPO), and particle swarm optimization (PSO) to evaluate their performance in harmonic minimization. The performance of the proposed work is validated through simulation and experimentation on a prototype. The results show that the modified PWM technique optimized with GWO can reduce THD on NPC-MLI output voltage.</span>

show abstract

Harmonics Minimization in MLI Using Grasshopper Optimization Algorithm

Cited by 7 publications

References 29 publications

Selective Harmonic Elimination Notch Angle Calculation Using THD and ZHF Benchmarks for Cascaded Multilevel Inverters

Selective Harmonic Elimination Notch Angle Calculation Using THD and ZHF Benchmarks for Cascaded Multilevel Inverters

Investigation of Recent Metaheuristics Based Selective Harmonic Elimination Problem for Different Levels of Multilevel Inverters

Minimization of total harmonic distortion in neutral point clamped multilevel inverter using grey wolf optimizer

Contact Info

Product

Resources

About