| 基于WPHM模型和模糊综合评估的变压器健康状态评价 |
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| 引用本文： | 郑文光,谢红玲,李燕青,王爱军,王冠,张潇文. 基于WPHM模型和模糊综合评估的变压器健康状态评价[J]. 电力科学与工程, 2021, 37(2): 32-41. DOI: 10.3969/j.ISSN.1672-0792.2021.02.005 |
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| 作者姓名： | 郑文光 谢红玲 李燕青 王爱军 王冠 张潇文 |
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| 作者单位： | 大唐国际发电股份有限公司 陡河发电厂,河北 唐山063000;华北电力大学 电气与电子工程学院,河北 保定071003;唐山市气象局,河北 唐山063000;唐山师范学院 资源管理系,河北 唐山063000 |
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| 基金项目： | 唐山市气象局科研开发项目;唐山师范学院博士基金 |
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| 摘 要： | 针对当前变压器状态评价模糊性大、评估指标片面、指导性不强的问题,提出了一种基于WPHM模型和模糊综合评估的变压器健康状态评价方法.首先从电气、油化、油气和物理4种性质出发建立两级状态指标体系,提高了评估全面性和信息采集效率;然后以二级指标为基础构建WPHM模型来全面分析一级指标风险,并采用威布尔概率图法和极大似然估计法...
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| 关 键 词： | 变压器 WPHM模型 模糊综合评估 健康状态评价 |
Health Condition Evaluation of Transformer Based on WPHM Model and Fuzzy Comprehensive Evaluation |
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| ZHENG Wenguang,XIE Hongling,LI Yanqing,WANG Aijun,WANG Guan,ZHANG Xiaowen. Health Condition Evaluation of Transformer Based on WPHM Model and Fuzzy Comprehensive Evaluation[J]. Power Science and Engineering, 2021, 37(2): 32-41. DOI: 10.3969/j.ISSN.1672-0792.2021.02.005 |
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| Authors: | ZHENG Wenguang XIE Hongling LI Yanqing WANG Aijun WANG Guan ZHANG Xiaowen |
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| Affiliation: | (Douhe Power Plant,Datang International Power Generation Co.,Ltd.,Tangshan 063000,China;School of Electrical and Electronic Engineering,North China Electric Power University,Baoding 071003,China;Tangshan Meteorological Bureau,Tangshan 063000,China;Department of Resources Management,Tangshan Normal University,Tangshan 063000,China) |
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| Abstract: | Aiming at solving condition evaluation problems such as large fuzziness,one-sided evaluation index and weak guidance,this paper puts forward a transformer condition evaluation method based on WPHM model and fuzzy comprehensive evaluation.This method firstly establishes a two-stage condition index system from four properties of electricity,oilization,gas and physics,which improves the evaluation comprehensiveness and information acquisition efficiency.Then,WPHM model is built to comprehensively analyze the risk of primary index based on the secondary index,and the parameters are estimated by Weibull probability graph method and maximum likelihood estimation method,which improves the computational speed of the parameters.Finally,combined with the theory of optimal availability,the membership function is constructed and used to obtain the fuzzy relation between transformer risk degree and condition,and then the overall risk level of transformer is obtained under the action of variable weight.After a case study,the evaluation method is proved to be objective,accurate,convenient and effective,which has good practicability in engineering and can provide guidance and help for transformer maintenance. |
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| Keywords: | transformer WPHM model fuzzy comprehensive evaluation health condition evaluation |
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