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首页> 外文会议>IASTED International Conference on Applied Simulation and Modelling >A COMPUTER-AIDED METHODOLOGY FOR MODELING THERMAL BEHAVIOR OF UNDERGROUND POWER CABLES
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A COMPUTER-AIDED METHODOLOGY FOR MODELING THERMAL BEHAVIOR OF UNDERGROUND POWER CABLES

机译：一种用于建模地下电力电缆的热行为的计算机辅助方法

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摘要

The interconnected Saudi electricity power transmission grid is characterized by an extensive use of underground power cables. Significant amounts of design and operating cost reductions as well as energy loss savings could be achieved via optimizing cable performance under various loading and soil conditions. In this regard, advanced computer-aided tools for power cable analysis can be used to assist cable engineers in making the right choices regarding cable installation designs and operating scenarios which will achieve minimum energy losses. This paper describes an efficient method for computer-aided cable analysis and optimization of power cables which combines the ease of the traditional Neher-MacGrath and IEC methods with the more advanced and accurate ladder network analysis techniques. The paper also discusses and compares the usefulness and effectiveness of existing power utility methods of evaluating the cable ampacity and energy losses. The results of many relevant practical applications have demonstrated that, while a minimum cost of cable installation is desirable, some installations may produce unnecessarily large energy losses than others during the actual operation. The traditional trade-of between minimum cable design cost and minimum operating energy losses is therefore an important issue in practical cable design applications.
机译：互连的沙特电力传输电网的特点是大量使用地下电力电缆。通过在各种装载和土壤条件下优化电缆性能，可以通过优化电缆性能来实现大量的设计和运营成本和节省能量亏损。在这方面，用于电力电缆分析的先进的计算机辅助工具可用于帮助有线工程师在有关电缆安装设计和操作场景的正确选择，这将实现最小能量损失。本文介绍了一种有效的计算机辅助电缆分析和优化电缆的优化方法，其与更先进和准确的梯形网络分析技术相结合的传统良好的MacGrath和IEC方法。本文还讨论并比较了现有电力公用事业方法的有效性和有效性来评估了电缆容易性和能量损失。许多相关实际应用的结果表明，虽然需要最小的电缆安装成本，但在实际操作期间，一些装置可能会产生不必要的大能量损失。因此，传统的电缆设计成本和最低运行能量损失之间的折衷是实用电缆设计应用中的重要问题。

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