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发明公开
CN109031074A 一种GIS固体绝缘寿命预测方法及装置 有权

一种GIS固体绝缘寿命预测方法及装置
摘要：
本发明公开了一种GIS固体绝缘寿命预测方法及装置，通过获取现场GIS历史运行数据和局放数据，实现对现场GIS固体绝缘的老化状态关键参量的提取，进而通过预置GIS固体绝缘电场强度仿真计算模型、预置GIS固体绝缘温度场仿真计算模型和预置GIS固体机械应力仿真计算模型，结合根据局放数据得到现场GIS固体绝缘的缺陷损伤值，实现现场GIS在服役期间的累计老化损失值的计算，最终根据预置GIS固体绝缘老化程度与设备寿命概率密度的关系式计算得到现场GIS固体绝缘的寿命，实现了对现场GIS固体绝缘的剩余寿命进行预测，保证了电力系统运行的可靠性以及避免了资源的不必要浪费。
摘要（英）：

The invention discloses a GIS (Gas Insulated Switchgear) solid insulation life prediction method and device. Field GIS historical operating data and partial discharge data are obtained, so that extraction of the key aging state parameter of field GIS solid insulation is realized; therefore, a GIS solid insulation electric-field intensity simulation calculation model, a GIS solid insulation temperature-field simulation calculation model and a GIS solid mechanical stress simulation calculation model are pre-set; in combination with the defect damage value of the field GIS solid insulation obtained by the partial discharge data, calculation of the cumulative aging damage value of the field GIS in a service period is realized; finally, the life of the field GIS solid insulation is obtained bycalculation according to the pre-set relational expression of the aging degree of the GIS solid insulation and the device life probability density; therefore, the remaining life of the field GIS solidinsulation is predicated; the operating reliability of a power system is ensured; and unnecessary waste of resources is avoided.

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