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Neural Network Controlled Solar PV Battery Powered Unified Power Quality Conditioner for Grid Connected Operation

Author

Listed:
  • Okech Emmanuel Okwako

    (Department of Electrical Engineering, School of Mechanical Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China)

  • Zhang-Hui Lin

    (Department of Electrical Engineering, School of Mechanical Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China)

  • Mali Xin

    (Department of Electrical Engineering, School of Mechanical Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China)

  • Kamaraj Premkumar

    (Department of Electrical and Electronics Engineering, Rajalakshmi Engineering College, Chennai 602105, India)

  • Alukaka James Rodgers

    (Department of Electrical Engineering, School of Mechanical Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China)

Abstract

The Unified Power Quality Conditioner (UPQC) is a technology that has successfully addressed power quality issues. In this paper, a photovoltaic system with battery storage powered Unified Power Quality Conditioner is presented. Total harmonic distortion of the grid current during extreme voltage sag and swell conditions is more than 5% when UPQC is controlled with synchronous reference frame theory (SRF) and instantaneous reactive power theory (PQ) control. The shunt active filter of the UPQC is controlled by the artificial neural network to overcome the above problem. The proposed artificial neural network controller helps to simplify the control complexity and mitigate power quality issues effectively. This study aims to use a neural network to control a shunt active filter of the UPQC to maximise the supply of active power loads and grid and also used to mitigate the harmonic problem due to non-linear loads in the grid. The performance of the model is tested under various case scenarios, including non-linear load conditions, unbalanced load conditions, and voltage sag and voltage swell conditions. The simulations were performed in MATLAB/Simulink software. The results showed excellent performance of the proposed approach and were compared with PQ and SRF control. The percent total harmonic distortion (%THD) of the grid current was measured and discussed for all cases. The results show that the %THD is within the acceptable limits of IEEE-519 (less than 5%) in all test case scenarios by the proposed controller.

Suggested Citation

  • Okech Emmanuel Okwako & Zhang-Hui Lin & Mali Xin & Kamaraj Premkumar & Alukaka James Rodgers, 2022. "Neural Network Controlled Solar PV Battery Powered Unified Power Quality Conditioner for Grid Connected Operation," Energies, MDPI, vol. 15(18), pages 1-18, September.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:18:p:6825-:d:918124
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    References listed on IDEAS

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    1. Yap Hoon & Mohd Amran Mohd Radzi & Mohd Khair Hassan & Nashiren Farzilah Mailah, 2017. "Control Algorithms of Shunt Active Power Filter for Harmonics Mitigation: A Review," Energies, MDPI, vol. 10(12), pages 1-29, December.
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    Cited by:

    1. Zhilong Yin & Shuilian Xue & Zhiguo Wang & Feng Yu & Hailiang Chen, 2022. "Flexible Droop Coefficient-Based Inertia and Voltage Cascade Control for Isolated PV-Battery DC Microgrid," Energies, MDPI, vol. 15(24), pages 1-17, December.

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