针对DC-DC升压变换器的新型抗干扰快速终端滑模控制方法  

A novel anti-disturbance fast terminal sliding mode method based on DC-DC boost converter

作　　者：梁波[1] 徐翔 牛荣超 张宏宇 张璇 李玉忍[1] LIANG Bo;XU Xiang;NIU Rongchao;ZHANG Hongyu;ZHANG Xuan;LI Yuren(School of Automation,Northwestern Polytechnical University,Xi′an 710072,China;Xi′an Institute of Applied Optics,Xi′an 710065,China)

机构地区：[1]西北工业大学自动化学院,陕西西安710072 [2]西安应用光学研究所,陕西西安710065

出　　处：《西北工业大学学报》2025年第2期338-344,共7页Journal of Northwestern Polytechnical University

摘　　要：为了稳定母线电压并匹配功率需求,以DC-DC升压变换器为研究对象,提出了一种新的快速终端滑模控制策略,来增强系统的抗干扰能力。采用一个全阶滑模面保证系统状态的有限时间收敛,并利用一种积分型切换控制项处理系统扰动;使用扰动观测器估计系统的不确定性,从而进一步增强鲁棒性,减少抖振;提出了一种参数更新机制计算当前工作点的模型参数,这有助于改善控制性能并提高应对不同工况的灵活性;通过仿真验证了所提方法的有效性。In order to stabilize the bus voltage and match the power demand,this paper proposes a new fast terminal sliding mode control strategy to enhance the system′s anti-disturbance ability for the DC-DC boost converter.Firstly,a full order sliding mode surface is proposed to ensure finite time convergence of the system state,and an integral type switching control term is proposed to handle large disturbances.Then,perturbation observation is used to calculate system uncertainty which further enhances robustness and reduces chattering.Next,a parameter update mechanism is proposed to calculate the model parameters of the current working point,which helps to improve control performance and enhance flexibility in dealing with different working conditions.Finally,the effectiveness of this method is verified through simulation.

关 键 词：DC-DC升压变换器 参数估计 滑模控制 抗干扰 

分 类 号：TM921[电气工程—电力电子与电力传动]