Technical and economic research on networking and transmission for Jiangsu far-reaching offshore wind power

Jiangsu coastal area is rich in offshore wind resources for development. The development capacity of farreaching offshore wind power is 80 million kilowatts, and the development potential is huge. In this paper, far-reaching sea wind power networking and transmission active loss, economy and other factors, analysis of the system structure for far-reaching sea wind power; Aiming at the problem of large amount of active power loss in large wind power system networking and long distance transmission system, four networking and transmission modes of power frequency AC, low frequency AC, flexible DC and pure DC are compared on the basis of system technical and economic indexes. Firstly, the operation modes of four wind power systems are analyzed, and the technical analysis of transformers and cables is carried out. Secondly, the active power loss of the farreaching sea wind power system is calculated, and the loss model under different transmission distances is built by MALTAB/ SIMULINK. Finally, the economics of the four methods were compared by engineering cost calculation. Combined with the development plan of offshore wind power in Jiangsu Province, the transmission mode of large-scale offshore wind power pooling and outgoing transmission in Jiangsu Province is proposed.