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Integral Sliding-Mode Control-Based Direct Power Control for Three-Level NPC Converters

Author

Listed:
  • Hao Lin

    (Department of Control Science and Engineering, Harbin Institute of Technology, Harbin 150001, China)

  • Jose I. Leon

    (Department of Control Science and Engineering, Harbin Institute of Technology, Harbin 150001, China
    Electronic Engineering Department, Universidad de Sevilla, 41004 Sevilla, Spain)

  • Wensheng Luo

    (Department of Control Science and Engineering, Harbin Institute of Technology, Harbin 150001, China)

  • Abraham Marquez

    (Electronic Engineering Department, Universidad de Sevilla, 41004 Sevilla, Spain)

  • Jianxing Liu

    (Department of Control Science and Engineering, Harbin Institute of Technology, Harbin 150001, China)

  • Sergio Vazquez

    (Electronic Engineering Department, Universidad de Sevilla, 41004 Sevilla, Spain)

  • L. G. Franquelo

    (Department of Control Science and Engineering, Harbin Institute of Technology, Harbin 150001, China
    Electronic Engineering Department, Universidad de Sevilla, 41004 Sevilla, Spain)

Abstract

Three-level neutral-point-clamped (NPC) converter is widely used in energy conversion systems due to its good properties for high-power systems presenting output waveforms with reduced harmonic distortion. To obtain better system performance, an integral sliding-mode control (ISMC)-based direct power control (DPC) strategy is proposed for NPC converters. The controller achieves three objectives. First, an extended state observer (ESO)-based ISMC strategy, to enforce the active and reactive power to their reference values, is applied in the power tracking loop. ESO is used to reduce the influence of parameter uncertainties. Next, in the voltage regulation loop, a radial basis function neural network (RBFNN)-based adaptive ISMC strategy is applied to regulate the DC-link voltage. RBFNN is used to estimate the load variation, which is considered as a disturbance, to improve the system disturbance rejection ability. An adaptive law is used in the controller to reduce the chattering of reference active power which can reduce the current harmonic distortion. Finally, a proportional-integral (PI) control strategy is applied in the voltage balancing loop to achieve voltage balance between two DC-link capacitors. Experimental results show the effectiveness and superiority of the proposed control strategy for the NPC power converter compared with PI-based DPC strategy.

Suggested Citation

  • Hao Lin & Jose I. Leon & Wensheng Luo & Abraham Marquez & Jianxing Liu & Sergio Vazquez & L. G. Franquelo, 2020. "Integral Sliding-Mode Control-Based Direct Power Control for Three-Level NPC Converters," Energies, MDPI, vol. 13(1), pages 1-20, January.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:1:p:227-:d:304644
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    Citations

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    Cited by:

    1. Weixuan Zhang & Yu Fang & Rong Ye & Zhengqun Wang, 2020. "Analysis and Design of a Double Fuzzy PI Controller of a Voltage Outer Loop in a Reversible Three-Phase PWM Converter," Energies, MDPI, vol. 13(15), pages 1-19, July.
    2. Salvatore Musumeci, 2023. "Energy Conversion Using Electronic Power Converters: Technologies and Applications," Energies, MDPI, vol. 16(8), pages 1-9, April.
    3. Adyr A. Estévez-Bén & Alfredo Alvarez-Diazcomas & Juvenal Rodríguez-Reséndiz, 2020. "Transformerless Multilevel Voltage-Source Inverter Topology Comparative Study for PV Systems," Energies, MDPI, vol. 13(12), pages 1-26, June.
    4. Seong Won Moon & Tong Seop Kim, 2020. "Advanced Gas Turbine Control Logic Using Black Box Models for Enhancing Operational Flexibility and Stability," Energies, MDPI, vol. 13(21), pages 1-23, October.
    5. Cristian Napole & Oscar Barambones & Mohamed Derbeli & Isidro Calvo & Mohammed Yousri Silaa & Javier Velasco, 2021. "High-Performance Tracking for Piezoelectric Actuators Using Super-Twisting Algorithm Based on Artificial Neural Networks," Mathematics, MDPI, vol. 9(3), pages 1-20, January.

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