海上风电场组网方式的评估

Evaluation of Offshore Wind Farm Integration Scheme

由于海上风电的巨大发展前景,未来海上风电组网的额定容量与输电距离将会进一步增加,远距离传输数百兆瓦级电能将会带来高损耗和高投资,因此需要高效且经济的组网方式.通过介绍几种海上风电场集电系统与输电系统的结构特点,对不同装机容量及不同离岸距离的风电场采用不同的集电与输电方式进行比较评估,分析计算结果得出链形连接是目前最优集电方式,HVAC、VSC-HVDC分别适合小容量近距离、大容量远距离并网的结论.

Due to the huge potential prospects of offshore wind power,rated capacity and distance of offshorewind farm will increase further in the near future,long-distance transmission of several megawatt electric poweralso means high loss and huge investment. Therefore,integration scenario should be both Effective and econom-ical. The topology of offshore wind power collection and transmission schemes are introduced in this paper. Thecomparison and evaluation are demonstrated for the offshore wind farms integration with different capacity anddistance using various collection and transmission schemes. The proposal was present in this paper which wasan optimal scheme of string connection for the collection system while HVAC and VSC-HVDC integratedschemes were better options for the near low penetration and long distance large scale wind farm respectively.