| 引用本文: | 张 怡,张 锋,张 炜,等.一种改进型三相四桥臂有源电力滤波器控制策略的研究[J].电力系统保护与控制,2025,53(14):142-151. |
| ZHANG Yi,ZHANG Feng,ZHANG Wei,et al.Research on an improved control strategy for three-phase four-leg active power filters[J].Power System Protection and Control,2025,53(14):142-151 |
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| 摘要: |
| 随着电力电子设备在现代电力系统中的大规模普及，电力系统谐波污染问题愈发严峻，谐波污染源不断增多。在此背景下，三相四桥臂有源电力滤波器(active power filter, APF)等装置在解决谐波污染、提升电能质量方面的价值日益凸显。在分析三相四桥臂APF数学模型的基础上，提出APF变流器滑模变结构控制(fractional-order sliding mode control, FOSMC)与模糊滞环控制(fuzzy-hysteretic control, FHC)的整体方案。其中，采用分数阶滑模控制策略以提升APF电流跟踪精度，n相补偿电流采用模糊滞环控制以抑制零序分量。在此基础上提出综合控制方案，实现abc相与n相协调控制。MATLAB/Simulink仿真与实验结果表明，运用相关策略后电网三相总谐波畸变率得到有效抑制，零序电流也得到了有效抑制，表现出良好的应用效果和工程推广性。 |
| 关键词: 三相四桥臂APF 分数阶滑模变结构控制 模糊滞环控制 |
| DOI：10.19783/j.cnki.pspc.241416 |
| 分类号: |
| 基金项目:浙江省自然科学基金白马湖实验室联合基金项目资助(LBMHY25F030003) |
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| Research on an improved control strategy for three-phase four-leg active power filters |
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ZHANG Yi1, ZHANG Feng2, ZHANG Wei3, QIU Yutao2, WU Tao3
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1. Zhejiang University of Water Resources and Electric Power, Hangzhou 310018, China; 2. State Grid Zhejiang
Electric Power Co., Ltd., Hangzhou 310012, China; 3. Pinghu Power Supply Company,
State Grid Zhejiang Electric Power Co., Ltd., Pinghu 314200, China
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| Abstract: |
| As power electronic devices become increasingly prevalent in modern power systems, harmonic pollution has become increasingly severe, with a growing number of harmonic sources. In this context, devices such as three-phase four-leg active power filters (APF) have demonstrated significant value in mitigating harmonics and enhancing power quality. Based on the analysis of the mathematical model of three-phase four-leg APF, this paper presents an integrated control scheme combining fractional-order sliding mode control (FOSMC) and fuzzy-hysteretic control (FHC). Specifically, the scheme adopts FOSMC to enhance the current tracking accuracy of APF, and employs FHC for the n-phase compensation current to suppress the zero-sequence component. A comprehensive control scheme is further developed to achieve coordinated control between the abc phases and the n phase. Simulation results from MATLAB/Simulink and experimental findings indicate that the proposed strategy effectively suppress the total harmonic distortion in the three-phase grid with relevant strategies. Moreover, the zero-sequence current is effectively suppressed, demonstrating excellent performance and strong potential for engineering applications. |
| Key words: three-phase four-leg APF fractional-order sliding mode control fuzzy-hysteretic control |
