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Optimal control of a multilevel DC-link converter photovoltaic system for maximum power generation

Author

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  • Abdalla, I.
  • Corda, J.
  • Zhang, L.

Abstract

This paper describes a new algorithm for optimal control of a PV system under partial shading. A multilevel DC-link is the essential part of the proposed system and its control engages a voltage-hold perturbation and observation (VH–P&O) method combined with a PWM algorithm with permutation of PV sources. The algorithm enables achieving the maximum power generation for any number of PV and converter modules. The main features of the control are: (i) a continual operation of all PV sources, shaded and non-shaded, at their maximum power points, (ii) delivery of all extracted power from PV sources to the load and (iii) generation of multilevel output voltage waveform with a low total harmonic distortion.

Suggested Citation

  • Abdalla, I. & Corda, J. & Zhang, L., 2016. "Optimal control of a multilevel DC-link converter photovoltaic system for maximum power generation," Renewable Energy, Elsevier, vol. 92(C), pages 1-11.
  • Handle: RePEc:eee:renene:v:92:y:2016:i:c:p:1-11
    DOI: 10.1016/j.renene.2016.01.062
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    Citations

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    Cited by:

    1. Venkateswari, R. & Sreejith, S., 2019. "Factors influencing the efficiency of photovoltaic system," Renewable and Sustainable Energy Reviews, Elsevier, vol. 101(C), pages 376-394.
    2. Cho, Younghoon, 2017. "Dual-buck residential photovoltaic inverter with a high-accuracy repetitive current controller," Renewable Energy, Elsevier, vol. 101(C), pages 168-181.
    3. Gupta, Akhil, 2022. "Power quality evaluation of photovoltaic grid interfaced cascaded H-bridge nine-level multilevel inverter systems using D-STATCOM and UPQC," Energy, Elsevier, vol. 238(PB).
    4. Balaska, Amira & Tahri, Ali & Tahri, Fatima & Stambouli, Amine Boudghene, 2017. "Performance assessment of five different photovoltaic module technologies under outdoor conditions in Algeria," Renewable Energy, Elsevier, vol. 107(C), pages 53-60.
    5. Mao, Mingxuan & Zhang, Li & Duan, Pan & Duan, Qichang & Yang, Ming, 2018. "Grid-connected modular PV-Converter system with shuffled frog leaping algorithm based DMPPT controller," Energy, Elsevier, vol. 143(C), pages 181-190.

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