Virtual Power Angle Synchronous Control for Improving Transient Stability of Grid-forming Converters  

作　　者：Jidong Xu Jun Zeng Gengning Ying Minhai Wu Junfeng Liu 

机构地区：[1]School of Electric Power Engineering,South China University of Technology,Guangzhou 510640,China [2]School of Automation Science and Engineering,South China University of Technology,Guangzhou 510641,China

出　　处：《Journal of Modern Power Systems and Clean Energy》2025年第1期142-153,共12页现代电力系统与清洁能源学报(英文)

基　　金：supported in part by the National Natural Science Foundation of China(No.52377186);the Natural Science Foundation of Guangdong Province(No.2024A1515012428);the Science and Technology Planning Project of Guangdong Province,China(No.2023A1111120023);the Basic and Applied Basic Research Foundation of Guangdong Province(No.2022A1515240026)。

摘　　要：The increasing adoption of grid-forming converters(GFMCs)stems from their capacity to furnish voltage and frequency support for power grids.Nevertheless,GFMCs employing the current reference saturation limiting method often exhibit instability during various transient disturbances including grid voltage sags,frequency variations,and phase jumps.To address this problem,this paper proposes a virtual power angle synchronous(δv-SYN)control method.The fundamental of this method is to achieve synchronization with the grid using the virtual power angleδv instead of the active power.The transient stability characteristics of the proposed method are theoretically elucidated using a novel virtual power angle-power angle(δv-δ)model.The key benefit of the proposed method is its robustness to various grid strengths and diverse forms of transient disturbances,eliminating the requirement for fault identification or control switching.Moreover,it can offer grid-forming support to the grid during grid faults.Hardware-in-the-loop experimental results validate the theoretical analysis and the performance of the proposed method.

关 键 词：Grid-forming converter inertial effect overcurrent limitation transient disturbance transient stability virtual synchronous control 

分 类 号：TM46[电气工程—电器]