Complementarities of geographically dispersed wind resources have been well recognized and evaluated based on the statistics of wind data. This paper investigates the effect of spatiotemporal complementarities of grid-connected offshore wind farms on operational cost and stability of meshed DC/AC grids with VSC-based MTDC networks. The investigation is carried out for a real power system in Jiangsu Province, China, and has used the real hourly wind data provided by the China Meteorological

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... istration (CMA) in terms of the unit commitment (UC) as well as the probabilistic small-signal angular stability. Several distributed offshore wind farms are interconnected via a VSC-based MTDC network to send power to the southern area in Jiangsu Province. Computational results of the UC and system probabilistic stability demonstrate that significant saving of operational cost and stability improvement can be brought about from the complementarities of geographically distributed offshore wind farms.