Ernst, Damien[Université de Liège - ULg > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Smart grids >]
Oct-2011
Proceedings of the International Workshop on Transmission Networks for Offshore Wind Power as well as on Transmission Networks for Offshore Wind Power Farms Plants
No
International
International Workshop on Transmission Networks for Offshore Wind Power Plants as well as on Transmission Networks for Offshore Wind Power Farms
[en] This paper addresses the problem of ancillary services in ac systems interconnected by a multi-terminal HVdc system. It presents opportunities for new control schemes and discusses operation strategies for three types of HVdc grid operators, namely a coordination center, an independent operator, and the transmission system operator in charge of one of the areas interconnected by the multi-terminal HVdc grid. In these contexts, the paper envisions the challenges of using the HVdc infrastructure to provide frequency, voltage, and rotor angle stability-related ancillary services. It also analyzes the technical and economic impacts of the operation strategies on the ac areas’ dynamics.