Power Transformer Fault Diagnosis and Decision Analysis Based on Fault Probability Index

doi:10.16628/j.cnki.2095-8188.2022.11.010

Abstract

Abstract:

The failure of diagnosis and decision-making will endanger the safety of transformer equipment and cause economic losses.A real-time fault risk diagnosis and decision-making method for transformers is proposed.Based on Arrhenius theory,the transformer life loss rate and failure probability are calculated,and the transformer operation and maintenance plan is assisted to formulate according to the risk aversion index.The validity of the proposed method is proved by simulating the overload scenario through the operation data of an actual transformer equipment.

Key words: power transformer, Arrhenius theory, failure risk diagnosis, decision analysis

CLC Number:

TM76

XIA Meng, WANG Hui, ZHUANG Ruxue, ZHAO Lingjun, YAO Haowei, GENG Lian. Power Transformer Fault Diagnosis and Decision Analysis Based on Fault Probability Index[J]. LOW VOLTAGE APPARATUS, 2022, 0(11): 59-62.

Figures/Tables 7

References 15

[1]	茹东武, 李永照, 陈喜凤, 等. 一种智能变电站智能告警专家系统推理机制的研究[J]. 电器与能效管理技术, 2017(5):44-49.
[2]	黄翔, 王凌云, 王泉, 等. 基于直觉模糊VIKOR法的电力变压器部件风险优先级评估[J]. 高压电器, 2020, 56(12):177-183.
[3]	马桂芬, 袁小娴, 蒋海, 等. 配电变压器监督抽查结果与损耗准确测量研究[J]. 电器与能效管理技术, 2020(7):91-95.
[4]	张珂斐, 郭江, 陈红坤. 基于全维度的电力变压器智能决策支持系统研究[J]. 电测与仪表, 2019, 56(13):33-38.
[5]	CARNEIRO J C, JARDINI J A, BRITTES J. Substation power transformer risk management:Reflecting on reliability centered maintenance and monitoring:4th International Conference on Power Engineering, Energy and Electrical Drives[C]. 2012.
[6]	吴晓欣, 何怡刚, 段嘉珺, 等. 考虑复杂时序关联特性的Bi-LSTM变压器DGA故障诊断方法[J]. 电力自动化设备, 2020, 40(8):184-193.
[7]	武天府, 刘征, 王志强, 等. 基于Focal损失SSDAE的变压器故障诊断方法[J]. 电力工程技术, 2021, 40(6):18-24.
[8]	汪可, 李金忠, 张书琦, 等. 变压器故障诊断用油中溶解气体新特征参量[J]. 中国电机工程学报, 2016, 36(23):6570-6578,6625.
[9]	WEEKES T, MOLINSKI T, LI X, et al. Risk assessment using transformer loss of life data[J]. IEEE Electrical Insulation Magazine, 2004, 20(2):27-31.
[10]	RADZIAN A M, ITOH M, INAGAKI T. Power transformer diagnosis decision-making based on unified combination rule and maximax-maximin criterion[C]//2010 IEEE Region 10 Conference (2010 Tencon), 2011:106-111.
[11]	IEEE Guide for Loading Mineral-Oil-Immersed Transformers:C57.91—1995[S]. New York:IEEE, 1996.
[12]	杨小铭, 王煜, 饶丹, 等. 变压器状态监测组件功能整合研究和性能提升设计[J]. 电力系统保护与控制, 2017, 45(16):130-135.
[13]	万季青. 变压器在线监测与故障诊断系统设计[D]. 武汉: 湖北工业大学, 2018.
[14]	舒想, 杨贤, 周丹, 等. 基于多特征指标综合评价的变压器油硫腐蚀程度定量表征方法[J]. 电工电能新技术, 2020, 36(9):6-12.
[15]	郝思鹏, 张济韬, 张仰飞, 等. 融合在线监测数据的变压器状态评估[J]. 电力自动化设备, 2017, 37(11):176-181.