山东电力技术2025，Vol.52Issue(6)：33-43,11.DOI:10.20097/j.cnki.issn1007-9904.2025.06.004
基于降阶高增益观测器的构网型光储系统滑模控制
Sliding Mode Control of Grid-forming PV-storage System Based on Reduced-order High Gain Observer
摘要
Abstract
Aiming at the problem that the DC bus voltage fluctuation will be caused by the power change of new energy equipment,and the active power may produce power oscillation under the weak power network environment with large frequency fluctuation of the power grid,thus worsening the transient performance of the grid-type optical storage system,based on the virtual synchronous generator technology,a novel terminal complementary sliding mode control(NTCSMC)strategy based on the reduced-order high gain observer(RHGO)is proposed.Firstly,a high gain coefficient is introduced into the observer to suppress transient oscillations,and the structure of the observer is simplified by a reduced-order design.Secondly,the control coefficient is introduced on the terminal complementary sliding mode surface to enhance the stability of the controlled system,and the superhelical switching law is designed to suppress buffeting.Then,the stability of RHGO and NTCSMC is proved theoretically.Finally,proportional integral(PI)control,traditional extended state observer-sliding mode control(ESO-SMC),and improved ESO-SMC control methods are simulated and verified by experiments on MATLAB simulation and experiment platform.The results show that the proposed control method has a good effect on the transient performance of grid-connected photovoltaic energy storage systems.关键词
虚拟同步发电机/构网型光储系统/降阶高增益观测器/新型终端互补滑模/暂态性能Key words
virtual synchronous generator/grid-forming PV-storage system/reduced-order high gain observer(RHGO)/novel terminal complementary sliding mode(NTCSMC)/transient characteristics分类
动力与电气工程引用本文复制引用
薛瑞泽,李星,王嘉力,任俊恒,皇金锋..基于降阶高增益观测器的构网型光储系统滑模控制[J].山东电力技术,2025,52(6):33-43,11.基金项目
陕西省自然科学基金面上项目(2023-JC-YB-442). Shaanxi Provincial Natural Science Foundation(2023-JC-YB-442). （2023-JC-YB-442）
