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Modeling and Evaluation of Inertia Emulation Control for DFIG Wind Turbine
Haoshu SHAO,Xu CAI,Jianwen Zhang,Yunfeng Cao,Fangquan RAO,Dapeng ZHENG,Dangsheng ZHOU,Yan WANG 전력전자학회 2019 ICPE(ISPE)논문집 Vol.2019 No.5
With the increasing penetration of renewable energy generators in power grid, many inertia emulation control strategies have been raised to solve the problem of reduced power system inertia. A co-simulation research platform is built based on RTDS and GH Bladed, detailed comparisons are made in terms of inertia response performance, weak grid operation stability, secondary frequency drop and wind tower load analysis. Research results point out that different control schemes are similar in inertia response while virtual synchronous generator control (VSG) and inertial synchronization control (ISynC) can improve weak grid operation stability, VSG strategy is also effective in reducing frequency secondary drop and wind tower fatigue load, the combination of VSG and ISynC can get the best control results.