发电技术2026，Vol.47Issue(1)：111-121,11.DOI:10.12096/j.2096-4528.pgt.260110
基于模糊自抗扰的光储预同步虚拟同步发电机并网策略
Pre-Synchronization Virtual Synchronous Generator Grid-Connection Strategy Based on Fuzzy Active Disturbance Rejection for Photovoltaic Storage
摘要
Abstract
[Objectives]Virtual synchronous generator(VSG)technology is extensively utilized for its capability to regulate damping and inertia during inverter grid connection.However,line impedance is commonly present,and voltage and current distortions are prone to occur during the pre-synchronization process of disconnection and grid connection.Therefore,the control structure and pre-synchronization method of VSG are optimized.[Methods]A photovoltaic power generation system and hybrid energy storage are used to replace a traditional DC source,simulating actual conditions.Virtual active power and virtual current are incorporated into the conventional VSG model to compensate for phase and amplitude differences during grid connection,thereby achieving frequency and voltage regulation.To address the issue of selecting PD control parameters in a traditional linear active disturbance rejection control(LADRC)system,fuzzy control is employed to adaptively adjust these PD parameters online.Furthermore,LADRC is introduced into the active power loop for secondary frequency regulation,which enhances system robustness.[Results]The feasibility of the proposed method is verified through MATLAB/Simulink simulation,which demonstrates the excellent performance of the pre-synchronization control system.[Conclusions]The fuzzy LADRC enables rapid and smooth grid connection,suppresses grid-side current surges,and reduces frequency oscillations,thereby improving the stability of the grid-connected inverter-grid interaction system.关键词
虚拟同步发电机(VSG)/微电网/分布式能源/预同步/阻抗/虚拟电流/模糊线性自抗扰控制/光储系统Key words
virtual synchronous generator(VSG)/microgrid/distributed energy/pre-synchronization/impedance/virtual current/fuzzy linear active disturbance rejection control/photovoltaic storage system分类
能源科技引用本文复制引用
李涛,张春,胡添诚..基于模糊自抗扰的光储预同步虚拟同步发电机并网策略[J].发电技术,2026,47(1):111-121,11.基金项目
国家自然科学基金项目(U21A20146) （U21A20146）
安徽高校协同创新项目(GXXT-2020-070).Project Supported by National Natural Science Foundation of China(U21A20146) （GXXT-2020-070）
Anhui University Collaborative Innovation Project(GXXT-2020-070). （GXXT-2020-070）
