可再生能源2025，Vol.43Issue(7)：919-926,8.
考虑系统小干扰功角稳定的风机虚拟惯量控制改进策略
Improved strategy of fan virtual inertia control considering small disturbance power angle stability of the system
摘要
Abstract
The traditional VIC of wind turbine can transform the rotor kinetic energy of wind turbine into the output active,which makes the wind turbine participate in the system frequency modulation and improve the dynamic characteristics of the system frequency;but at the same time,the wind turbine also participates in the system power oscillation,which leads to an increase in the instability of the system's small disturbing power angle factor.For this problem this paper first based on modal analysis theory to get the traditional virtual inertia control will increase the system small interference power angle instability risk conclusion.Secondly,it builds a two-machine system model for wind turbine access extension,and proposes a virtual inertia control improvement strategy that introduces additional damping control branch,which can weaken the unfavourable effect of the wind turbine on the power angle during the small disturbances in the system through virtual inertia control,so as to accelerate the recovery of the system power angle.Finally,it is verified in modal analysis and time domain simulation that the strategy can improve the damping ratio of the system in the interval oscillation mode and reduce the risk of the system power angle instability during small disturbances.关键词
虚拟惯量控制/模态分析理论/小干扰功角稳定/振荡模式阻尼比Key words
VIC/modal analysis theory/small disturbance power angle stabilization/oscillatory mode damping ratio分类
能源科技引用本文复制引用
孙黎,刘梦飞,陈昭良,刘洪波,马成廉,陈建宇..考虑系统小干扰功角稳定的风机虚拟惯量控制改进策略[J].可再生能源,2025,43(7):919-926,8.基金项目
国家电网公司科技项目(5100-202226021A-1-1-ZN). （5100-202226021A-1-1-ZN）
