引用本文:韩伟,李云路,王鸿毅,周立丽.弱电网复杂工况下自适应PI+VPI谐波电流跟踪控制[J].控制理论与应用,2026,43(5):1079~1092.[点击复制]
HAN Wei,LI Yun-lu,WANG Hong-yi,ZHOU Li-li.An adaptive PI+VPI harmonic current tracking control under the complex working conditions of weak power grid[J].Control Theory & Applications,2026,43(5):1079~1092.[点击复制]
弱电网复杂工况下自适应PI+VPI谐波电流跟踪控制
An adaptive PI+VPI harmonic current tracking control under the complex working conditions of weak power grid
摘要点击 319  全文点击 12  投稿时间：2024-11-01  修订日期：2026-01-26
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DOI编号  10.7641/CTA.2025.40568
  2026,43(5):1079-1092
中文关键词  有源电力滤波器  格型陷波器  频率偏移  梯度自适应算法  VPI控制
英文关键词  active power filters  lattice notch-filter  frequency variation  gradient adaptive lattice (GAL) algorithm  VPI control
基金项目  国家自然科学基金项目(51467017), 内蒙古民族大学博士科研启动基金项目(BS682)资助.
作者单位E-mail
韩伟* 内蒙古民族大学物理与电子信息学院 dr_whan@163.com 
李云路 沈阳工业大学电气工程学院  
王鸿毅 奥尔堡大学能源系  
周立丽 内蒙古民族大学物理与电子信息学院  
中文摘要
      针对弱电网复杂工况下APF谐波电流补偿性能降低的问题, 本文提出了一种自适应PI+VPI谐波跟踪控制 策略. 该策略由一种自适应陷波型SRF-PLL和自适应PI+VPI电流跟踪控制方法构成, 引入串联的格型自适应陷波 器组来抑制电网电压畸变、不平衡且存在较大范围的频率偏移工况带来的扰动, 提高电网相位和频率估计精度, 再 将相位和频率信息用于谐波检测及电流跟踪控制中的Park变换及PI+VPI电流跟踪控制律参数的更新中, 构造出一 个具有谐振频率自适应能力的PI+VPI电流跟踪控制器, 进而提高谐振频率点的增益, 保证APF能够在上述弱电网 条件下保持最佳的补偿性能. 最后仿真和实验证明本文所提ANF-PLL在频率发生+4 Hz偏移的情况下, 相位及频率 估计误差依然能够保持较高的精度, 所提自适应PI+VPI 策略在4 Hz频率偏移范围内能够保证补偿后电网电流 THD维持在3.68%以下, 在复杂工况下的谐波补偿性能优势明显.
英文摘要
      In order to solve the problem of the degradation of the harmonic compensation performance of the active power filter (APF) under the complex working conditions of the weak power grid, an adaptive proportional integral plus vector proportional integral (PI+VPI) harmonic current tracking control strategy was proposed. The strategy is composed of an adaptive notch filter based phase-locked loop (PLL) and an adaptive PI+VPI current tracking control method, and a series of adaptive lattice notches are introduced to suppress the disturbance caused by the conditions of grid-side voltage distortion, imbalance and a large range of frequency deviation and improve the phase and frequency estimation accuracy of the grid. Meanwhile, the phase and the frequency information are used to calculate the Park transform in harmonic detection and updating of PI+VPI current tracking control law parameters in current tracking control. Then the PI+VPI current tracking controller with resonant frequency adaptation capability is constructed to improve the gain of the resonant frequency point and ensure that the APF can maintain the best compensation performance under the above weak grid conditions. Finally, simulations and experiments show that the phase and frequency estimation errors of the proposed adaptive notch filter based PLL (ANF-PLL) can still be maintained high accuracy after the frequency deviation of +4 Hz, and the proposed adaptive PI+VPI strategy can ensure that the current THD of the grid side after compensation is kept below 3.68% in the frequency deviation range of 4 Hz, and the harmonic compensation performance has obvious advantages under the complex working conditions.