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首页> 外文会议>2013 IEEE 1st International Conference on Condition Assessment Techniques in Electrical Systems >Power loss estimation in a 420kv Gas Insulated Busbar (GIB) by theoretical and simulation techniques — A comparison
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Power loss estimation in a 420kv Gas Insulated Busbar (GIB) by theoretical and simulation techniques — A comparison

机译：通过理论和模拟技术估算420kv气体绝缘母线（GIB）中的功率损耗—比较

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摘要

Gas Insulated Substations (GIS) have found wide use in the past few decades. They offer several advantages over traditional Air Insulated Substations (AIS) which include superior dielectric strength, limited space requirements. Gas Insulated Busbar (GIB) is a critical part in a GIS since it serves as a component for tapping power for subsequent distribution to various interconnected components. Its failure would be detrimental and costly. Hence, manufacturers are faced with the task of minimizing the power loss in GIB. Standards stipulate stringent norms on the upper temperature rise limit for conductors and enclosures. Joule loss in a GIB is the primary source of heat for temperature rise and depends on the rated current, geometric dimension and resistivity. Further, skin-proximity effect results in a non-uniform current distribution leading to greater losses. This paper develops a 2-D finite element model of a GIB and employs magnetic analysis to estimate the power loss in the conductor and enclosure for rated current at maximum operating temperature. For the GIB taken up for study and analysis, losses are calculated using a theoretical method as per procedures laid out in CIGRE Working Group 21.12. The simulation and theoretical values are compared and cross-validated.
机译：气体绝缘变电站（GIS）在过去的几十年中得到了广泛的应用。与传统的空气绝缘变电站（AIS）相比，它们具有许多优点，包括优越的绝缘强度，有限的空间要求。气体绝缘母线（GIB）是GIS中的关键部分，因为它是用于分接电源以随后分配给各种互连组件的组件。它的失败将是有害的和昂贵的。因此，制造商面临着将GIB中的功率损耗降至最低的任务。标准对导体和外壳的温度上升上限规定了严格的规范。 GIB中的焦耳损耗是温度升高的主要热源，并取决于额定电流，几何尺寸和电阻率。此外，皮肤接近效应导致电流分布不均匀，从而导致更大的损耗。本文建立了GIB的二维有限元模型，并利用磁分析来估计导体和外壳在最大工作温度下的额定电流下的功率损耗。对于用于研究和分析的GIB，按照CIGRE工作组21.12规定的程序，使用理论方法计算损失。比较仿真结果和理论值并进行交叉验证。

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