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Harmonic Modeling and Analysis for Parallel 12-Pulse Rectifier under Unbalanced Voltage Condition in Frequency-Domain

Author

Listed:
  • Guochao Qian

    (Electric Power Research Institute, Yunnan Power Grid Co., Ltd., Kunming 650217, China)

  • Qianggang Wang

    (State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing 400044, China)

  • Shun He

    (Electric Power Research Institute, Yunnan Power Grid Co., Ltd., Kunming 650217, China)

  • Weiju Dai

    (Electric Power Research Institute, Yunnan Power Grid Co., Ltd., Kunming 650217, China)

  • Nengqiao Wei

    (State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing 400044, China)

  • Niancheng Zhou

    (State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing 400044, China)

Abstract

This paper treats a parallel 12-pulse rectifier as the study subject. The influence of unbalanced terminal voltage, the triggering angle, as well as the commutation angle of a thyristor-controlled rectifier circuit are considered in switching functions. Then, a frequency-domain harmonic coupled admittance matrix under the effect of positive sequence and negative sequence voltages are proposed, respectively. With the integration of the above matrices, a harmonic coupled admittance matrix model of a parallel 12-pulse rectifier under unbalanced voltage is proposed. On this basis, a simplified harmonic model of a 12-pulse rectifier is established, which only considers the effect of major elements through analyzing the elements’ distribution and magnitude of the harmonic coupled admittance matrix, as well as the AC current harmonic producing mechanism. All the models proposed in this paper are verified with high accuracy through simulation in MATLAB/Simulink. The models proposed in this paper can be used to guide the selection of harmonic suppression measures and equipment.

Suggested Citation

  • Guochao Qian & Qianggang Wang & Shun He & Weiju Dai & Nengqiao Wei & Niancheng Zhou, 2022. "Harmonic Modeling and Analysis for Parallel 12-Pulse Rectifier under Unbalanced Voltage Condition in Frequency-Domain," Energies, MDPI, vol. 15(11), pages 1-9, May.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:11:p:3946-:d:825211
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    Citations

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    Cited by:

    1. Yerbol Yerbayev & Ivan Artyukhov & Artem Zemtsov & Denis Artyukhov & Svetlana Molot & Dinara Japarova & Viktor Zakharov, 2022. "Negative Impact Mitigation on the Power Supply System of a Fans Group with Frequency-Variable Drive," Energies, MDPI, vol. 15(23), pages 1-21, November.
    2. Grzegorz Hołdyński & Zbigniew Skibko & Andrzej Borusiewicz, 2023. "Analysis of the Influence of Load on the Value of Zero-Voltage Asymmetry in Medium-Voltage Networks Operating with Renewable Energy Sources," Energies, MDPI, vol. 16(2), pages 1-13, January.

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