发电技术2025，Vol.46Issue(2)：314-325,12.DOI:10.12096/j.2096-4528.pgt.24015
面向扭振分析的含虚拟惯量双馈风机轴系研究
Research on Doubly-Fed Wind Turbine Shaft System With Virtual Inertia for Torsional Vibration Analysis
摘要
Abstract
[Objectives]Shafting mathematical model of wind turbine is the basis of torsional vibration characteristics analysis.Shafting model is very important for the reliability of analysis results.In order to study the influence of virtual inertia on the torsional vibration characteristics of transmission chain more accurately,the modeling of doubly-fed wind turbine shaft system with virtual inertia control is studied.[Methods]After the simulation model is determined,a damping controller is designed,which can suppress the torsional vibration of the shafting caused by virtual inertia control.Firstly,by establishing the mathematical model of various shafting,the dynamic model of fan system based on virtual inertia control is established,and the key state variables affecting the torsional vibration characteristics of the shafting are determined by modal analysis method.Secondly,the applicability of different shafting models of wind turbine is studied from two aspects:torsional vibration characteristics of wind turbine with virtual inertia control and dynamic interaction between wind turbine shafting and synchronous machine.Finally,the effectiveness of the conclusion and the damping controller is verified by simulation analysis.[Results]The use of virtual inertia control can effectively improve the system inertia attenuation caused by wind power grid connection,but it will also reduce the damping ratio of the system.The two-mass model has stronger observability of torsional vibration mode,and the two-mass shafting model is more sensitive to the change of virtual inertia parameters.The torsional vibration of the shafting of the three-mass model changes more than that of the two-mass model.[Conclusions]The two-mass shaft system model with virtual inertia control is more suitable for torsional vibration analysis of wind turbine shaft systems.关键词
双馈风电机组/风电并网/扭振特性/虚拟惯量控制/阻尼控制器/低频振荡/带通滤波器/短路故障/风机轴系/电网支撑Key words
doubly-fed wind turbine/wind power grid connection/torsional vibration characteristics/virtual inertia control/damping controller/low-frequency oscillation/band-pass filter/shorted fault/wind turbine shaft system/power grid support分类
能源科技引用本文复制引用
孙正龙,伞吉强..面向扭振分析的含虚拟惯量双馈风机轴系研究[J].发电技术,2025,46(2):314-325,12.基金项目
国家自然科学基金项目(51907019,52277084) （51907019,52277084）
吉林省自然科学基金项目(20210101390JC).Project Supported by National Natural Science Foundation of China(51907019,52277084) （20210101390JC）
Natural Science Foundation of Jilin Province(20210101390JC). （20210101390JC）
