电力系统自动化2026，Vol.50Issue(6)：62-71,10.DOI:10.7500/AEPS20250620012
虚拟同步控制构网型双馈风电机组功角振荡量化分析及抑制
Quantitative Analysis and Suppression of Power-angle Oscillation for Virtual Synchronous Generator Controlled Grid-forming Doubly-fed Wind Turbines
摘要
Abstract
Virtual synchronous generator(VSG)controlled grid-forming doubly-fed wind turbines exhibit inertia and damping characteristics similar to synchronous generators,and their synchronization processes rely on multi-level loop coupling effects,but are susceptible to active power-angle oscillations and associated stability risks.Therefore,an active power-angle transfer function for VSG-controlled grid-forming doubly-fed wind turbines considering multiple control loops is first established,and the instability mechanism of weakly damped active power-angle oscillations caused by multi-level loop coupling is revealed.Then,the influence and variation laws of key control parameters,including the power-synchronization loop and the voltage control loop,on the system dynamic performance are quantified based on the root-locus analysis,and the corresponding parameter stability region is described.On this basis,an active suppression method for active power-angle oscillations based on frequency damping is proposed.By feeding the virtual speed signal into the virtual synchronous angle,it enhances the power-angle response and tracking speed,avoids transient underdamping caused by response lag,expands the parameter stability domain,and improves the stable operation capability of grid-forming doubly-fed wind turbines in complex-disturbance scenarios.Finally,based on the time-domain and controller hardware-in-the-loop simulation of a grid-connected system with 2.5 MW grid-forming doubly-fed wind turbines,the accuracy and effectiveness of the theoretical analysis and the power-angle oscillation suppression strategy are jointly verified.关键词
双馈风电机组/构网型控制/虚拟同步发电机/功角稳定/频率阻尼/振荡抑制Key words
doubly-fed wind turbine/grid-forming control/virtual synchronous generator/power-angle stability/frequency damping/oscillation suppression引用本文复制引用
李少林,秦世耀,张进,李春彦,李鹏坤..虚拟同步控制构网型双馈风电机组功角振荡量化分析及抑制[J].电力系统自动化,2026,50(6):62-71,10.基金项目
国家自然科学基金联合基金资助项目(U24B2087). This work is supported by National Natural Science Foundation of China(No.U24B2087). （U24B2087）
