Collaborative Frequency Control Strategy of Offshore Wind Turbine and VSC-HVDC
Due to the low inertia of offshore wind farms,which affects the safe and stable operation of the system,DC capacitor inertia control is designed in the control strategy of the receiving end converter station by analogy with the rotor motion equation of synchronous motors;due to the long distance between the wind turbine side and the grid side,it is difficult to respond to fluctuations in the grid frequency in a timely manner.by finding the mathematical relationship between the grid frequency and the DC voltage of the receiving converter station,the offshore wind turbine is coupled with the grid,and a frequency regulation control is introduced in the control of the wind turbine,so that the wind power plant can respond and adjust to changes in the grid frequency in a timely manner,enhancing the active power and frequency stability of the offshore wind power plant when connected to the grid.
offshore wind power generationVSC-HVDCfrequency couplingDC capacitor inertia control
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