风剪切和塔影效应会导致直驱式风电机组产生强迫功率振荡，影响系统的安全稳定运行。因此，提出了一种基于自抗扰控制的虚拟惯量控制方法，该方法通过扩张状态观测器观测估计系统扰动量，同时利用跟踪微分器调整系统频率的参考值，优化风电机组控制功率。仿真结果表明，相比传统的虚拟惯量控制，所提方法具有更好的抗干扰性，能更有效地对扰动进行观测估计并补偿，达到抑制直驱式风电并网系统强迫振荡的目的。

Wind shear and tower shadow effects can lead to forced power oscillations in direct-drive wind turbines, affecting the safe and stable operation of the system. Thus, a virtual inertia control method based on active disturbance rejection control is proposed, which optimizes the control power of the wind turbine by estimating the system disturbance power through extended state observer observation. And at the same time, using tracking differentiator to adjust the reference value of the system frequency. Simulation results show that, compared with the traditional virtual inertia control, the proposed method has better immunity to disturbances, and can more effectively observe and estimate the disturbance and compensate for it, so as to achieve the purpose of suppressing the forced oscillation of direct drive wind power grid connected system.

2023年山西省研究生教育创新计划支持（2023AL05）