SYNOPSIS: The wind energy industry has increased rapidly during the last decade as a result of constant improvement in terms of increased capacity of WTs and efficiency in energy extraction. This has made the manufacturers to go beyond their bounda-ries imposed by the onshore installation and tried the offshore challenges. In consequence, wind power became a serious competitor for the traditional energy sources. The biggest challenge was the integration of such dis-tributed power systems into the grid without affecting the stability and in the same time meeting TSO requirements. Another issue was the power transportation over long dis-tances and the limitations that the HVAC faced in offshore installations. The new concept of VSC-based HVDC enabled the possibility to go further into the sea and increase the power production. Using VSCs for interfacing the DC grid with the AC grid brought many advantages and also made possible to fulfill TSO requirements. The HVDC system gains much more flexibility on a
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