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A New Real Time Lyapunov Based Controller for Power Quality Improvement in Unified Power Flow Controllers Using Direct Matrix Converters

Author

Listed:
  • Joaquim Monteiro

    (INESC-ID, 1000-029 Lisbon, Portugal, and Instituto Superior de Engenharia de Lisboa, Polytechnic Institute of Lisbon, 1959-007 Lisbon, Portugal)

  • Sónia Pinto

    (INESC-ID, 1000-029 Lisbon, Portugal, and with DEEC, Instituto Superior Técnico, University of Lisbon, 1049-001 Lisbon, Portugal)

  • Aranzazu Delgado Martin

    (Electrical Engineering Department, University of Huelva, La Rábida, 21819 Palos de la Frontera, Spain)

  • José Fernando Silva

    (INESC-ID, 1000-029 Lisbon, Portugal, and with DEEC, Instituto Superior Técnico, University of Lisbon, 1049-001 Lisbon, Portugal)

Abstract

This paper proposes a Direct Matrix Converter operating as a Unified Power Flow Controller (DMC-UPFC) with an advanced control method for UPFC, based on the Lyapunov direct method, presenting good results in power quality assessment. This control method is used for real-time calculation of the appropriate matrix switching state, determining which switching state should be applied in the following sampling period. The control strategy takes into account active and reactive power flow references to choose the vector converter closest to the optimum. Theoretical principles for this new real-time vector modulation and control applied to the DMC-UPFC with input filter are established. The method needs DMC-UPFC dynamic equations to be solved just once in each control cycle, to find the required optimum vector, in contrast to similar control methods that need 27 vector estimations per control cycle. The designed controller’s performance was evaluated using Matlab/Simulink software. Controllers were also implemented using a digital signal processing (DSP) system and matrix hardware. Simulation and experimental results show decoupled transmission line active ( P ) and reactive ( Q ) power control with zero theoretical error tracking and fast response. Output currents and voltages show small ripple and low harmonic content.

Suggested Citation

  • Joaquim Monteiro & Sónia Pinto & Aranzazu Delgado Martin & José Fernando Silva, 2017. "A New Real Time Lyapunov Based Controller for Power Quality Improvement in Unified Power Flow Controllers Using Direct Matrix Converters," Energies, MDPI, vol. 10(6), pages 1-13, June.
    • Handle: RePEc:gam:jeners:v:10:y:2017:i:6:p:779-:d:100701
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    References listed on IDEAS

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    1. Miguel Moranchel & Emilio Bueno & Inés Sanz & Francisco J. Rodríguez, 2017. "New Approaches to Circulating Current Controllers for Modular Multilevel Converters," Energies, MDPI, vol. 10(1), pages 1-20, January.
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    Cited by:

    1. Asare Koduah & Francis Boafo Effah, 2022. "Fuzzy-Logic-Controlled Hybrid Active Filter for Matrix Converter Input Current Harmonics," Energies, MDPI, vol. 15(20), pages 1-19, October.
    2. Jinlian Liu & Zheng Xu & Liang Xiao, 2019. "Comprehensive Power Flow Analyses and Novel Feedforward Coordination Control Strategy for MMC-Based UPFC," Energies, MDPI, vol. 12(5), pages 1-31, March.
    3. Xi Wu & Zhengyu Zhou & Gang Liu & Wanchun Qi & Zhenjian Xie, 2017. "Preventive Security-Constrained Optimal Power Flow Considering UPFC Control Modes," Energies, MDPI, vol. 10(8), pages 1-15, August.
    4. Jianwei Zhang & Margarita Norambuena & Li Li & David Dorrell & Jose Rodriguez, 2019. "Sequential Model Predictive Control of Three-Phase Direct Matrix Converter," Energies, MDPI, vol. 12(2), pages 1-14, January.
    5. Alberto Duran & Efrain Ibaceta & Matias Diaz & Felix Rojas & Roberto Cardenas & Hector Chavez, 2020. "Control of a Modular Multilevel Matrix Converter for Unified Power Flow Controller Applications," Energies, MDPI, vol. 13(4), pages 1-18, February.

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