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CN106026091A 评估同塔双回输电线路三相电流不平衡度的仿真模型装置 无效 - 驳回

评估同塔双回输电线路三相电流不平衡度的仿真模型装置
摘要：
一种评估同塔双回输电线路三相电流不平衡度的仿真模型装置，基于ATP/EMTP平台，对需要被评估的220kV同塔双回输电线路搭建详细仿真建模，并构造了相电流转换序电流模块和序电流转换为三相电流不平衡度模块。根据不同长度和型号的输电线路，得出同塔双回输电线路中的各回线路三相电流负序不平衡度及零序环流不平衡度。该装置能都对同塔双回输电线的三相电流不平衡度进行评估，通过评估可以判断同塔双回输电线路的三相不平衡度是否满足要求。既可以用于指导运行中的同塔双回输电线路的相序排列改造对保障线路的安全稳定运行起了重要作用，又可以用于新建同塔双回输电线路的相序排列方式的设计与规划，具有广泛的适用性。
摘要（英）：

A simulation model apparatus for evaluating the three-phase current imbalance degree of double circuit transmission lines on a same tower is disclosed. A simulation model for 220kV double circuit transmission lines on a same tower to be evaluated is established in details based on an ATP/EMTP platform, and a phase-current-converting-to-sequence-current module and a sequence-current-converting-to-three-phase-current-imbalance-degree module are constructed. Three-phase current negative-sequence imbalance degree and zero-sequence circulation imbalance degree of each loop in the double circuit transmission lines on the same tower can be obtained according to power transmission lines of different lengths and models. The apparatus can evaluate three-phase current imbalance degree of double circuit transmission lines on the same tower, and determines whether the three-phase current imbalance degree of double circuit transmission lines on the same tower meets the requirements or not. The apparatus can be used to guide phase sequence arrangement reconstruction of double circuit transmission lines on the same tower in operation to ensure the safe and stable operation of the lines, and to design and plan phase sequence arranging ways of newly constructed double circuit transmission lines on the same tower. The simulation model apparatus is widely applicable.

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