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中文摘要：
将交联聚乙烯绝缘电缆热平衡方程与电网潮流模型有机结合，构建计及电缆热特性的电热耦合潮流计算模型，实现将架空线路、电缆导体、金属护套以及外护套的温度纳入潮流计算状态量，并在牛顿法修正方程基础上结合高压电网及电缆热平衡方程特点提出该模型的快速解耦求解方法。作为电热协调理论研究的扩展，文中研究能够计算各种预想电网运行模式下架空线路及电缆温度轨迹，有利于在电网分析及调度决策中实现对电缆载荷能力的科学评价及高效利用。
英文摘要：
By organically combining the heat balance equation of cable with a power flow model, an electro thermal power flow model considering the thermal property of cable is developed. With this model, an algorithm based on the Newton method is presented and an algorithm of fast decoupling solution is further presented by utilizing the characteristics of a high voltage power grid and thermal property of cable. The proposed model and the algorithm can bring the temperature of conductor, metal screen and jacket of cable into power flow calculation as novel state variables to determine the temperature trajectory in different anticipated operation scenarios of the power system. As an extension research of the electro thermal coordination theory, the proposed model and algorithm are conducive to revealing and exploiting the potential transfer capability of cable in power system analysis and dispatch decision-making.
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