Interaction of large offshore wind parks with the electrical grid

This paper deals with the impact of increased wind power generation on the behavior of the interconnected system in steady state as well as during and after a contingency situation. The issues specifically considered are performance during a severe short-circuit and frequency stability after a sudden loss of generation. The results of the short-circuit simulation are then evaluated vis-a-vis the grid code requirements placed on wind generating plants. Using a large interconnected system encompassing several conventional synchronous generators, the effect of increased wind power generation on the frequency stability of the system after a loss of generation has been discussed. It was found out that at the conceptual level there are a range of options which would place wind generating plants in a position to support system frequency in an emergency situation.