Grid Forming Converters in Renewable Energy Sources Dominated Power Grid:Control Strategy,Stability,Application,and Challenges  

作　　者：Haobo Zhang Wang Xiang Weixing Lin Jinyu Wen 

机构地区：[1]State Key Laboratory of Advanced Electromagnetic Engineering and Technology,Huazhong University of Science and Technology [2]TBEA Sunoasis Company Ltd. [3]the State Key Laboratory of Advanced Electromagnetic Engineering and Technology,Huazhong University of Science and Technology

出　　处：《Journal of Modern Power Systems and Clean Energy》2021年第6期1239-1256,共18页现代电力系统与清洁能源学报（英文）

基　　金：supported by the Xinjiang Autonomous Region Key R&D Projects(No.2020B02002)。

摘　　要：The renewable energy sources(RESs)dominated power grid is an envisaged infrastructure of the future power system,where the commonly used grid following(GFL)control for grid-tied converters suffers from lacking grid support capability,low stability,etc.Recently,emerging grid forming(GFM)control methods have been proposed to improve the dynamic performance and stability of grid-tied converters.This paper reviews existing GFM control methods for the grid-tied converters and compares them in terms of control structure,grid support capability,fault current limiting,and stability.Considering the impact of fault current limiting strategies,a comprehensive transient stability analysis is provided.In addition,this paper explores the typical applications of GFM converters,such as AC microgrid and offshore wind farm high-voltage direct current(OWF-HVDC)integration systems.Finally,the challenges to the GFM converters in future applications are discussed.

关 键 词：Grid following(GFL)control grid forming(GFM)control high-voltage direct current(HVDC) MICROGRID renewable energy small-signal stability transient stability 

分 类 号：TM46[电气工程—电器]