Factors affecting offshore wind power integration to grid through VSC-HVDC

In this paper, the offshore wind power integration to the main ac grid through the voltage-source converter (VSC) high-voltage dc (HVDC) transmission is investigated. Vector control is used for the control of both offshore and onshore converter stations. The proposed model was implemented and simulated using Matlab/Simulink to investigate the factors affecting the wind power integration. The paper showed that at lower short-circuit ratio (SCR) values the maximum power transfer capability is reduced as well as the total harmonic distortion (THD) is increased greatly. An interesting result is that the maximum power transfer capability at lower SCRs is increased with lower grid angles while the current THD is decreased.

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