海上風(fēng)電機(jī)組利用導(dǎo)管架結(jié)構(gòu)作為自然接地體可行性研究
[Abstract]:Under the background of energy crisis, offshore wind power has become a hot spot of new energy research, and the development of offshore wind power in China has just started. In order to study the grounding problem of offshore wind turbine units, the grounding grid structure and environment of offshore wind turbines are significantly different from those of onshore wind turbines. A simulation model using jacket foundation as natural earthing for offshore wind turbine unit is established by using CDEGS software. First, each conductor of the model is segmented, then the Green function of each conductor is solved by the complex image method, and finally the grounding impedance of the model is calculated by the superposition theorem. In addition, the influence of the water depth, the resistivity of seawater and the resistivity of seabed on the grounding impedance is calculated and compared. The results show that the jacket structure is used as the natural earthing body. It can ensure the grounding safety of offshore wind turbine and provide a reference for the grounding design of offshore wind turbine unit.
【作者單位】: 中國(guó)能源建設(shè)集團(tuán)廣東省電力設(shè)計(jì)研究院;武漢大學(xué)電氣工程學(xué)院;
【分類(lèi)號(hào)】:TM862;TM315
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