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首页> 外文期刊>Electric Power Components and Systems >Cost-Effective Optimization Model for Transmission Line Outage Rate Control Due to Back-Flashover Phenomena
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Cost-Effective Optimization Model for Transmission Line Outage Rate Control Due to Back-Flashover Phenomena

机译:具有反向闪络现象的输电线路停电率控制的经济有效优化模型

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摘要

This paper presents a cost-effective optimization model for transmission line lightning performance design. The objective is to determine the appropriate insulation level and a particular grounding scheme of each support for a given line outage rate requirement due to the back-flashover phenomena at a minimum overall cost. To ensure a minimum global investment cost, the constraints associated with the individual lightning behavior of each tower section are relaxed depending on the regional atmospheric activity and on the particular characteristics of the soil, and therefore on the costs of the required grounding and insulation systems at each tower location, enforcing the appropriate lightning behavior of the complete transmission line. The proposed model is based upon a linear-integer programing problem formulation and solutions are obtained from the application of a three-layer hierarchical design methodology. The proposal has been tested in a 230 kV transmission line, 85.4 km long, with 180 towers. Results are presented and compared with designs obtained through by a conventional grounding optimization with important reductions in investment costs, encouraging the use and further development of the methodology.
机译:本文提出了一种用于输电线路雷电性能设计的经济有效的优化模型。目的是以最小的总体成本,确定由于反向闪络现象而导致的给定线路中断率要求下,每种支撑的合适的绝缘等级和特定的接地方案。为了确保最低的全球投资成本,放宽了与每个塔架部分的雷击行为相关的约束,具体取决于区域的大气活动和土壤的特定特性,因此取决于所需的接地和绝缘系统的成本。每个塔架位置,加强整个传输线的适当雷电行为。所提出的模型基于线性整数编程问题公式,并且通过应用三层分层设计方法获得了解决方案。该提案已在230 kV输电线路中进行了测试,该线路长85.4公里,带有180座塔。提出了结果并与通过常规接地优化获得的设计进行了比较,并显着降低了投资成本,从而鼓励了该方法的使用和进一步发展。

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