风电功率波动对轨迹断面特征根的影响研究

Study on the Influence of Wind Power Fluctuation on the Characteristic Root of Track Section

轨迹断面特征根间接地反应了电力系统状态变量的变化,因此风电功率波动对轨迹断面特征根的影响也是一项值得深入研究的工作。本文在研究了轨迹断面特征根及风电机组模型的基础上,分析了风电功率波动对电力系统轨迹断面特征根的影响。通过分析可知,当风电场的有功功率输出随着风速增加而增加时,系统的主导振荡断面特征根将逐渐靠近虚轴,不利于系统的稳定运行。

Grounding between the characteristic roots of the track section reflects the change of the state variables of the power system, so the influence of wind power fluctuation on the characteristic roots of the track section is also a work worthy of further study.The influence of wind power fluctuation on the characteristic root of track section of power system is analyzed on the basis of studying the characteristic root of track section and wind turbine model.Through the analysis, it can be seen that when the active power output of the wind farm increases with the increase of wind speed, the characteristic root of the dominant oscillation section of the system will gradually approach the virtual axis, which is not conducive to the stable operation of the system.