In order to study the impact of large-scale offshore wind power access on the frequency drop of a coastal power grid,the frequency disturbance characteristics of the grid under several scenarios were simulated based on PSD-BPA,and the impact of frequency modulation(FM)fans on the grid frequency was analyzed.The results show that the replacement of thermal power units with fans will weaken the frequency stability of the whole system.With the increase of FM fans,the improvement effect on the frequency regulation capability of the power grid will be gradually demonstrated;when the FM fans with same capacity work in different areas,the frequency fluctuation of the whole system will be different;when the fault occurs near the fan access point,the fan frequency modulation effect will be more obvious.Therefore,the frequency stability will be significantly improved by reasonably configuring the adjustable frequency fans connected to the power grid.
关键词
频率稳定/频率跌落/海上风电/直驱风机/调频能力
Key words
frequency stability/frequency drop/offshore wind power/direct-drive wind turbine/frequency modulation ability
维普
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