华电技术 ›› 2017, Vol. 39 ›› Issue (9): 20-22.

• 研究与开发 • 上一篇    下一篇

基于D-S证据理论的变压器绝缘老化诊断

  

  1. 国网上海市电力公司检修公司,上海〓200063
  • 出版日期:2017-09-25 发布日期:2017-10-10

Transformer insulation aging diagnosis based on D-S evidence theory

  1. State Grid Shanghai Power Company Inspection & Maintenance Company, Shanghai 200063, China
  • Online:2017-09-25 Published:2017-10-10

摘要:

为了有效评估变压器绝缘老化状态,提出基于模糊数学与D-S证据理论的绝缘老化评价模型。采取不停电检测变压器绝缘状态的方法测量出4种参数,将4种参数通过隶属函数模糊化后作为4个独立的证据体,然后利用D-S证据合成理论强大的处理不确定信息的能力计算出诊断结果。最后通过多组实例证明了此模型的有效性。

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Abstract:

To effectively evaluate transformer insulation aging, the evaluation model based on fuzzy mathematics and D-S evidence theory was indicated. By the method of no power failure detecting transformer insulation status, four parameters were measured. These four parameters were fuzzed through membership function into four independent evidence bodies. And diagnostic result was calculated by the powerful uncertain information process ability of D-S evidence theory. Multiple allocations proved the effectiveness of this model.

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