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An Improved Imperialist Competitive Algorithm to Solve the Selected Harmonic Elimination Pulse-Width Modulation in Multilevel Converters

Author

Listed:
  • Zheng Gong

    (Jiangsu Province Laboratory of Mining Electric and Automation, China University of Mining and Technology, Xuzhou 221008, China)

  • Qi Cui

    (Jiangsu Province Laboratory of Mining Electric and Automation, China University of Mining and Technology, Xuzhou 221008, China)

  • Xi Zheng

    (Jiangsu Province Laboratory of Mining Electric and Automation, China University of Mining and Technology, Xuzhou 221008, China)

  • Peng Dai

    (Jiangsu Province Laboratory of Mining Electric and Automation, China University of Mining and Technology, Xuzhou 221008, China)

  • Rongwu Zhu

    (Chair of Power Electronics, Chritian-Albrechts- University of Kiel, 24118 Kiel, Germany)

Abstract

The traditional intelligent algorithms for the selected harmonic elimination pulse-width modulation (SHEPWM) of multilevel converters provide low convergent rate and low accuracy of solutions when solving quarter-wave symmetry nonlinear equations. To obviate this problem and obtain a better modulating performance, an improved imperialist competition algorithm is proposed. The proposed algorithm enhances the global search ability by using moving imperialists. Also, a novel type of particles, named independent countries, are proposed to help the algorithm jump out of the local optimum. These independent countries change their positions using swarm intelligence. Compared with the existing particle swarm algorithm and genetic algorithm, the proposed algorithm has significant advantages by improving the accuracy of solutions and the rate of convergence. Finally, the correctness and effectiveness of the proposed algorithm are verified and evaluated by simulation and experimental results.

Suggested Citation

  • Zheng Gong & Qi Cui & Xi Zheng & Peng Dai & Rongwu Zhu, 2018. "An Improved Imperialist Competitive Algorithm to Solve the Selected Harmonic Elimination Pulse-Width Modulation in Multilevel Converters," Energies, MDPI, vol. 11(11), pages 1-16, November.
    • Handle: RePEc:gam:jeners:v:11:y:2018:i:11:p:3080-:d:181432
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    References listed on IDEAS

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    1. Mehrasa, Majid & Pouresmaeil, Edris & Akorede, Mudathir Funsho & Jørgensen, Bo Nørregaard & Catalão, João P.S., 2015. "Multilevel converter control approach of active power filter for harmonics elimination in electric grids," Energy, Elsevier, vol. 84(C), pages 722-731.
    2. Mehrasa, Majid & Pouresmaeil, Edris & Zabihi, Sasan & Rodrigues, Eduardo M.G. & Catalão, João P.S., 2016. "A control strategy for the stable operation of shunt active power filters in power grids," Energy, Elsevier, vol. 96(C), pages 325-334.
    3. Yungdeug Son & Jangmok Kim, 2018. "A Novel Phase Current Reconstruction Method for a Three-Level Neutral Point Clamped Inverter (NPCI) with a Neutral Shunt Resistor," Energies, MDPI, vol. 11(10), pages 1-18, October.
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    Cited by:

    1. Mauricio Muñoz-Ramírez & Hugo Valderrama-Blavi & Marco Rivera & Carlos Restrepo, 2019. "An Approach to Natural Sampling Using a Digital Sampling Technique for SPWM Multilevel Inverter Modulation," Energies, MDPI, vol. 12(15), pages 1-16, July.
    2. Chen Wei & Xibo Yuan & Juan Zhou & Kangan Wang & Yonglei Zhang & Xiaojie Wu, 2019. "Voltage Jump Suppression and Capacitor Voltage Fluctuation Analysis for a Four-Level Hybrid Flying Capacitor T-Type Converter," Energies, MDPI, vol. 12(4), pages 1-16, February.

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