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Cascaded Hybrid Multi-level Inverter for Selective Harmonics Elimination

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Iranian Journal of Science and Technology, Transactions of Electrical Engineering Aims and scope Submit manuscript

Abstract

This paper aimed at the prospect of an optimized algorithm for Selective Harmonic Elimination (SHE) through a hybrid control mechanism using fmincon and Newton–Raphson iterative method. In search of minimizing the Total Harmonic Distortion (THD), appropriate multi-level sequences and firing angles are used. This technique not only reduces the execution time but also improves the convergence rate. MATLAB simulations confirm that the algorithm is robust and the desired response is achieved within a few iterations for any range of modulation index. PSpice simulation verifies the successful removal of harmonics and confirms THD lies within limits specified by IEEE 519 standard. The implementation of this SHEPWM algorithm will improve the working of cascaded multi-level inverters by increasing their efficiency rate with respect to their speed.

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Abbreviations

SHE:

Selective Harmonics Elimination

INR:

Improved Newton–Raphson

PWM:

Pulse width modulation

PE:

Power electronics

PSO:

Particle swarm optimization

DE:

Differential evaluation

QP:

Quadratic programming

FFT:

Fast Fourier transform

NR:

Newton–Raphson

THD:

Total harmonics distortions

C-MLI:

Cascaded multilevel inverter

PV:

Photovoltaic

GA:

Genetic algorithm

MI:

Modulation index

SQP:

Sequential quadratic programming

PWL:

Piecewise linear

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Authors and Affiliations

  1. Department of Computer Science and Computer Engineering, U E T, Lahore, Pakistan

    Hassan Rahman & Yasir Saleem

  2. Department of Electrical Engineering, COMSATS Insitute of Information Technology, Lahore, Pakistan

    Muhammad Yaqoob Javed

  3. Department of Automation, University of Science and Technology of China, Hefei, China

    Qiang Ling

  4. Departments of Electrical Engineering, University of Central Punjab, Lahore, Pakistan

    Muhammad Majid Gulzar

Authors
  1. Hassan Rahman
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  2. Muhammad Yaqoob Javed
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  3. Yasir Saleem
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  4. Qiang Ling
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  5. Muhammad Majid Gulzar
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Correspondence to Muhammad Yaqoob Javed.

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Rahman, H., Javed, M.Y., Saleem, Y. et al. Cascaded Hybrid Multi-level Inverter for Selective Harmonics Elimination. Iran J Sci Technol Trans Electr Eng 42, 135–148 (2018). https://doi.org/10.1007/s40998-018-0054-8

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  • DOI: https://doi.org/10.1007/s40998-018-0054-8

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