广东电力2025，Vol.38Issue(3)：69-77,9.DOI:10.3969/j.issn.1007-290X.2025.03.008
二极管钳位三电平有源电力滤波器超螺旋滑模控制策略
The Super Twisting Sliding Mode Control Strategy for Diode Clamped Three-level Active Power Filters
摘要
Abstract
The diode clamped three-phase three-level active power filter faces challenges in practical applications,such as the complexity of voltage balance modulation strategies,slow response speed,and insufficient system robustness under internal and external disturbances.This paper presents a three-loop super twisting sliding mode control strategy thorough analyzing the dynamics and disturbances of the active power filter system.The proposed strategy consists of three parts of a DC bus voltage loop,a capacitor voltage balance loop,and a three-phase current tracking loop.In terms of capacitor voltage balance,an innovative approach is introduced by using super twisting sliding mode control for unified direct control,avoiding the traditional complex modulation strategies.Additionally,the incorporation of an integral sliding mode surface enables faster and more accurate regulation of the DC bus voltage and voltage balance,achieving rapid stabilization of all system states.Experimental results demonstrate that the proposed control strategy improves response speed by approximately 50％compared to traditional methods,with the total harmonic distortion of the compensated grid harmonic current reduced to only 2.74％.关键词
二极管钳位/有源电力滤波器/中点电位平衡/超螺旋滑模Key words
diode clamping/active power filter/neutral point potential balance/super twisting sliding mode分类
动力与电气工程引用本文复制引用
陈鸣,刘水,钟振鑫..二极管钳位三电平有源电力滤波器超螺旋滑模控制策略[J].广东电力,2025,38(3):69-77,9.基金项目
中国南方电网有限责任公司科技项目(GDKJXM20230303) （GDKJXM20230303）
