Abstract：The integration of large scale wind generation will seriously threaten the grid security for the lacking of effective inertia and damping. In this paper, based on the analysis of the traditional power control of variable speed wind turbines, the relationship between the virtual inertia, the rotor speed regulation and the network frequency variation is investigated firstly, and then the virtual inertia control strategy is proposed to support the inertia of the regional network with high wind penetration. Following that, the impact of the proposed virtual inertia control on system damping is discussed. An additional beneficial of the proposed control in terms of damping power system oscillations is observed, and thus the integrated control of virtual inertia with system damping on the active power loop is achieved. Furthermore, the reactive power damping control scheme is also devised to enhance the capability of the wind turbines to damp the power system oscillations corporately. Finally, a typical system with high capacity proportion of variable speed wind turbines is used to indicate the proposed control strategies. The simulation results show that with the proposed control scheme, the wind turbines not only have the fast respond to the network frequency, but also have the ability to damp the power system oscillations.
张祥宇, 付媛, 王毅, 王慧, 付超. 含虚拟惯性与阻尼控制的变速风电机组综合PSS控制器[J]. 电工技术学报, 2015, 30(1): 159-169.
Zhang Xiangyu, Fu Yuan, Wang Yi, Wang Hui, Fu Chao. Integrated PSS Controller of Variable Speed Wind Turbines with Virtual Inertia and Damping Control. Transactions of China Electrotechnical Society, 2015, 30(1): 159-169.
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2015, Vol. 30 
