【作者】 张琦； 夏向阳；

【Author】 Zhang Qi;Xia Xiangyang;College of Electrical Engineering Changsha University of Science and Technology;

【机构】 长沙理工大学电气与信息工程学院；

【摘要】 为提高XLPE电缆绝缘诊断精度,提出一种基于模糊理论和D-S证据理论的绝缘状态评估方法,建立了相应的评估模型。该模型将模糊理论中的模糊集合与隶属度函数概念运用于证据理论,利用隶属度函数构造证据理论的合理信度函数分配,解决了XLPE电缆各绝缘参数可信度分配难以确定问题,在此基础上通过证据理论联合每个绝缘参数可信度形成最终的电缆绝缘评估结果。实例分析验证了该模型的有效性,为XLPE电缆的绝缘诊断提供了一种新的研究思路。更多还原

【Abstract】 To improve insulation diagnosis accuracy of XLPE cable, an insulation assessing method based on fuzzy theory and D-S evidence theory was proposed and the corresponding insulation assessing model was established. The model used fuzzy set and membership function to structure the distribution of reliability function of evidence theory and solved the difficulty of determining reliability allocation of each insulation parameter, on the basis of the model, D-S evidence theory can combined the credibility of each insulation parameter to form the final fusion result. Example analysis verified that the model can diagnose insulation status of XLPE cable and provide a new research idea to insulation diagnosis of XLPE cable.更多还原