Study on Reliability Evaluation Technology Requirements for Large-scale Offshore Wind Power
2020
It is necessary to evaluate the reliability of the system's operation after grid-connected offshore wind power, to comprehensively evaluate and further improve the reliability of the grid including the receiving end of offshore wind power, which is beneficial the receiving power grid with large-scale offshore wind power runs safely and stably. Improve the power supply reliability of the offshore wind power receiving terminal. Considering the harsh operating conditions of offshore wind power, the frequent occurrence of extremely bad weather such as typhoons on the eastern coast, and the mutual influence of certain situations are frequent and involve a wide range, which brings serious harm to the offshore wind power connect system. At the same time, offshore wind power maintenance has poor accessibility, high maintenance costs, and reduced the reliability level of offshore wind power systems. In addition, when offshore wind power is connected to the receiving power grid through a combination of high-voltage AC and DC, it will have complex interactions with multi-level AC and multi-type DC external incoming calls, which may expand the scope and depth of the fault. Therefore, it is necessary to take into account the effects of severe weather at sea, offshore wind power maintenance plans, and various complex interactions to conduct a more comprehensive and in-depth study of the reliability assessment of offshore wind power connect to the power grid.
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