| 摘要: |
| 变压器状态评估需要考虑评估指标的模糊性和随机性，因此提出了一种基于合作博弈法和云模型的变压器状态评估方法。该方法首先建立变压器状态评估指标体系，采用合作博弈法获取指标组合权重，利用变权公式对其权重进行修正；采用云模型得到定量指标对变压器各状态等级的隶属度，最后采用分层评估方法得到评估结果。实例分析表明了该方法的正确性及可行性，其评估结果更接近变压器的真实状态。 |
| 关键词: 变压器状态评估需要考虑评估指标的模糊性和随机性，因此提出了一种基于合作博弈法和云模型的变压器状态评估方法。该方法首先建立变压器状态评估指标体系，采用合作博弈法获取指标组合权重，利用变权公式对其权重进行修正 采用云模型得到定量指标对变压器各状态等级的隶属度，最后采用分层评估方法得到评估结果。实例分析表明了该方法的正确性及可行性，其评估结果更接近变压器的真实状态。 |
| DOI： |
| 分类号: |
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| Transformer status assessment based on cooperative game and cloud model |
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XU Yan, CHEN Xin
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School of Electrical and Electronic Engineering，North China Electric Power University，Baoding 071000，China
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| Abstract: |
| Since the fuzziness and randomness of evaluation index for transformer status assessment should be considered，a transformer status assessment method based on the cooperative game method and cloud model is proposed，which establishes an evaluation index system for transformer status assessment，adopts the cooperative game method to obtain the combination weight for each index，uses the variable weights formula to modify the weights，applies the cloud model to obtain the membership degree of quantitative index to each transformer status grade，and uses the hierarchical evaluation method to assess the transformer status. Results of case analysis show its assessment result is closer to the actual transformer status，verifying its correctness and feasibility. |
| Key words: electric transformers cooperative game cloud model weight variable weight status assessment membership functions fuzziness randomness |
