Construction and operational properties of offshore wind farm power generation system with self-commuted HVDC transmission

As one of the renewable and clean energy resources, wind power is attracting considerable attentions and becoming most developing renewable energy resources due to its large unit capacity, etc. This paper make an basic approach to the construction of offshore wind farm power generation system, which is considered to be a promising way to increase the practical utilization of wind power. In this paper, the concepts of prediction of offshore wind data from measured land wind data, the basic construction of wind farm, the design of wind power transmission circuit and the control of various power equipments for an offshore wind farm generation system, are dealt with and presented. With this proposed system, a self-commutated HVDC transmission system is adopted to transmit wind power from offshore to the power grid on land. As a result of simulation study with an one-machine infinite bus power system model on PSCAD/EMTDC platform, the electrical characteristics of the proposed offshore wind power generation system are illustrated and its operational properties are verified.