海底电缆暂态载流量计算与优化选型
Transient Current Carrying Capacity Calculation and Optimization Selection of Subsea Cables
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摘要: 由于传统载流量分析方法在日益严苛的海底电缆选型上面临着巨大的挑战。以HLYJQF41-F 127/220 kV 3×1 600 mm2交联聚乙烯海底电缆建立分析模型,并利用CYMCAP软件进行稳态和暂态的载流量仿真计算。在指定环境温度、海床热阻系数和电缆埋深条件下,根据实际运行特点突破了传统的分析思路,为实际工程海底电缆载流量的优化提出了依据。与此同时,通过稳态和暂态的结果并结合敏感性分析对电缆的优化选型提供了参考。Abstract: As traditional current-carrying capacity analysis methods are facing huge challenges in the increasingly stringent submarine cable selection.The HLYJQF41-F 127/220 kV 3×1 600 mm2 cross-linked polyethylene submarine cable is used to establish the analysis model,and the steady-state and transient current-carrying capacity simulation calculations are carried out using CYMCAP software.Under the conditions of specified ambient temperature,seabed thermal resistance coefficient and cable burying depth,according to actual operating characteristics,it breaks through the traditional analysis ideas,and provides a basis for the optimization of the actual engineering submarine cable carrying capacity.At the same time,the steady-state and transient results combined with sensitivity analysis provide a reference for the optimization of cable selection.
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