Boost型PFC变换器的自适应超螺旋全局滑模控制  

Adaptive super twisting total sliding mode control for Boost-type PFC converter

作　　者：王业琴 杨艳 李正豪 张卫星 李磊[2] WANG Yeqin;YANG Yan;LI Zhenghao;ZHANG Weixing;LI Lei(Faculty of Automation,Huaiyin Institute of Technology,Huaian 223003,China;School of Automation,Nanjing University of Science and Technology,Nanjing 210094,China)

机构地区：[1]淮阴工学院自动化学院,江苏淮安223003 [2]南京理工大学自动化学院,江苏南京210094

出　　处：《电机与控制学报》2024年第4期111-119,130,共10页Electric Machines and Control

基　　金：国家自然科学基金(51177073);江苏省研究生实践创新计划项目(SJCX23_1856)。

摘　　要：针对Boost型功率因数校正(PFC)变换器,提出一种自适应超螺旋全局滑模控制(ASTTSMC)方法。该方法可以保证PFC变换器在理想工作条件下具备良好的性能,并且在面对负载突变、电网电压波动和电感参数变化等系统不确定性情况下时仍然能够保持全局鲁棒性。在控制律的设计中,采用全局滑模控制作为基准模型,从而确保系统在整个响应过程都具有鲁棒性;同时,切换项采用自适应超螺旋算法,考虑系统不确定项,通过自适应超螺旋算法中的切换增益参数来改善系统潜在的“抖振”现象;此外,基于李雅普诺夫稳定定理证明了所设计控制系统的稳定性。实验结果表明,在理想工作条件下和系统存在不确定性的情况下,该方法都能够有效改善网测电流的质量和提高变换器的功率因数,验证了该方法的有效性和所设计控制器的鲁棒性。An adaptive super twisting total sliding mode control(ASTTSMC)for a boost type power factor correction(PFC)converter was proposed.This method ensures that the PFC converter has good performance under ideal working conditions,and can still maintain global robustness in the face of system uncertainties containing load mutations,power grid voltage fluctuations,and changes in inductance parameter.In the design of the control law,total sliding mode control was adopted as the baseline model to ensure that the system has robustness throughout the whole response process.At the same time,considering system uncertainties,in the switching term an adaptive super twisting algorithm was used to reduce the potential chattering phenomenon of the system through the adaptive switching gain parameter.In addition,the stability of the designed control system is proved based on the Lyapunov stability theorem.The experimental results demonstrate that this method can effectively improve the quality of grid-side current and enhance the power factor of the converter under both ideal working conditions and in the presence of system uncertainties.This validates effectiveness of the proposed method and robustness of the designed controller.

关 键 词：功率因数校正变换器 全局滑模 超螺旋算法 自适应控制 鲁棒控制 

分 类 号：TM72[电气工程—电力系统及自动化]