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Double-Linear Approximation Algorithm to Achieve Maximum-Power-Point Tracking for Photovoltaic Arrays

Author

Listed:
  • Chih-Lung Shen

    (Department of Electronic Engineering, National Kaohsiung First University of Science and Technology, Kaohsiung 824, Taiwan)

  • Cheng-Tao Tsai

    (Department of Electrical Engineering, National Chin-Yi University of Technology, Taichung 411, Taiwan)

Abstract

In this paper, a double-linear approximation algorithm (DLAA) to achieve maximum-power-point tracking (MPPT) for photovoltaic (PV) arrays is proposed. The DLAA is based on the approximation that the maximum power point varies linearly with irradiation and temperature. With the DLAA, a maximum power point can be determined instantaneously. Moreover, complicated calculations and perturbations about an optimal point can be avoided. The paper also proposes a corresponding circuit to realize the DLAA. The configuration of the DLAA circuit is simple such that it is cost-effective and can be embedded into PV arrays easily. An example of implementation of a PV power supply system with the proposed MPPT is designed and the DLAA is compared with the perturb-and-observe method. Simulated and experimental results have demonstrated the feasibility of the PV power system and verified the advantages of the proposed DLAA.

Suggested Citation

  • Chih-Lung Shen & Cheng-Tao Tsai, 2012. "Double-Linear Approximation Algorithm to Achieve Maximum-Power-Point Tracking for Photovoltaic Arrays," Energies, MDPI, vol. 5(6), pages 1-16, June.
    • Handle: RePEc:gam:jeners:v:5:y:2012:i:6:p:1982-1997:d:18444
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    Citations

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    Cited by:

    1. Yinxiao Zhu & Moon Keun Kim & Huiqing Wen, 2018. "Simulation and Analysis of Perturbation and Observation-Based Self-Adaptable Step Size Maximum Power Point Tracking Strategy with Low Power Loss for Photovoltaics," Energies, MDPI, vol. 12(1), pages 1-20, December.
    2. Cheng-Tao Tsai & Wang-Min Chen, 2016. "Buck Converter with Soft-Switching Cells for PV Panel Applications," Energies, MDPI, vol. 9(3), pages 1-16, March.
    3. Po-Chen Cheng & Bo-Rei Peng & Yi-Hua Liu & Yu-Shan Cheng & Jia-Wei Huang, 2015. "Optimization of a Fuzzy-Logic-Control-Based MPPT Algorithm Using the Particle Swarm Optimization Technique," Energies, MDPI, vol. 8(6), pages 1-23, June.
    4. Cheng-Tao Tsai & Ying-Che Kuo & Ying-Piao Kuo & Chin-Tsung Hsieh, 2015. "A Reflex Charger with ZVS and Non-Dissipative Cells for Photovoltaic Energy Conversion," Energies, MDPI, vol. 8(2), pages 1-17, February.
    5. Cheng-Tao Tsai & Chih-Lung Shen & Jye-Chau Su, 2013. "A Power Supply System with ZVS and Current-Doubler Features for Hybrid Renewable Energy Conversion," Energies, MDPI, vol. 6(9), pages 1-20, September.
    6. Chun-Liang Liu & Jing-Hsiao Chen & Yi-Hua Liu & Zong-Zhen Yang, 2014. "An Asymmetrical Fuzzy-Logic-Control-Based MPPT Algorithm for Photovoltaic Systems," Energies, MDPI, vol. 7(4), pages 1-17, April.
    7. Cheng-Tao Tsai & Chih-Lung Shen, 2012. "A High Step-Down Interleaved Buck Converter with Active-Clamp Circuits for Wind Turbines," Energies, MDPI, vol. 5(12), pages 1-21, December.

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