控制理论与应用2023,Vol.40Issue(11):1903-1910,8.DOI:10.7641/CTA.2023.20461
自同步型并网逆变器有限时间全阶终端滑模控制研究
Research on finite-time full-order sliding mode control of self-synchronous grid-connected inverter
摘要
Abstract
For the delay reason of grid-side information acquisition in the switching process of single inverter from off-grid to grid-connected,it's difficult to realize the function of self-synchronizing grid information of inverter for the classical virtual impedance method.This paper designs a finite-time full-order sliding mode(FOSM)DC bus voltage/reactive power controller.Compared with PQ controller,the proposed controller can reduce the complex phase-locked loop(PLL),can realize self-synchronous tracking of grid information including the grid-side frequency and voltage informations compared with virtual synchronous generator(VSG)control,finite-time FOSM can realize faster response speed and stronger robust-ness compared with the traditional proportional-integral control.The simulation and experimental results show that the proposed control strategies can quickly track the grid voltage information,and effectively improve the dynamic regulation ability of the inverter output voltage.关键词
自同步/并网逆变器/有限时间控制/全阶终端滑模控制Key words
self-synchronization/grid connected inverter/finite-time control/full-order terminal sliding mode control引用本文复制引用
郑雪梅,时旭,陈鑫,冯勇..自同步型并网逆变器有限时间全阶终端滑模控制研究[J].控制理论与应用,2023,40(11):1903-1910,8.基金项目
国家自然科学基金项目(62073095),黑龙江省头雁项目,重庆自然基金项目(cstc2021jsyj-msxmX0829)资助.Supported by the National Natural Science Foundation of China(62073095),the Hei Long Jiang Province Head Goose Plan and the Chong Qing National Natural Foundation(cstc2021jsyj-msxmX0829). (62073095)