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Due to large-scale power electronic equipment access, the problem of harmonic voltage distortion has become serious in the distribution network. Voltage-detecting active power filters (VDAPF) are widely used due to their harmonic mitigation performance at the control node. However, the influence of VDAPF on the adjacent nodes is generally ignored in traditional analysis methods, it decreases the efficiency of VDAPF configuration and harmonic mitigation. Therefore, a voltage harmonic mitigation evaluation method of VDAPF is proposed based on the harmonic network propagation equation. Firstly, the control structure of VDAPF is introduced, and the virtual conductance is used to express its harmonic mitigation performance on the distribution network. Secondly, a voltage harmonic mitigation evaluation method is proposed to model the influence on control nodes and controlled nodes. Finally, the correctness and validity of the proposed method are verified by the mathematical analysis and simulation in a 3-node system.

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Quantitative Analysis Method of APF Mitigation Effectiveness Considering Harmonic Propagation Characteristics

  • 会议论文

  • 发表日期：

    2025年

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  • Mingchen Wang,
  • Yuanyuan Sun,
  • Yahui Li,
  • Pengbo Shan

摘要

Due to large-scale power electronic equipment access, the problem of harmonic voltage distortion has become serious in the distribution network. Voltage-detecting active power filters (VDAPF) are widely used due to their harmonic mitigation performance at the control node. However, the influence of VDAPF on the adjacent nodes is generally ignored in traditional analysis methods, it decreases the efficiency of VDAPF configuration and harmonic mitigation. Therefore, a voltage harmonic mitigation evaluation method of VDAPF is proposed based on the harmonic network propagation equation. Firstly, the control structure of VDAPF is introduced, and the virtual conductance is used to express its harmonic mitigation performance on the distribution network. Secondly, a voltage harmonic mitigation evaluation method is proposed to model the influence on control nodes and controlled nodes. Finally, the correctness and validity of the proposed method are verified by the mathematical analysis and simulation in a 3-node system.