An Integrated Decision-Making Model for Condition Assessment of Power Transformers Using Fuzzy Approach and Evidential Reasoning

被引：133

作者：

Liao, Ruijin ^{[1
]}

Zheng, Hanbo ^{[1
]}

Grzybowski, Stanislaw ^{[2
]}

Yang, Lijun ^{[1
]}

Zhang, Yiyi ^{[1
]}

Liao, Yuxiang ^{[3
]}

机构：

[1] Chongqing Univ, State Key Lab Power Transmiss Equipment & Syst Se, Chongqing 400044, Peoples R China

[2] Mississippi State Univ, Dept Elect & Comp Engn, High Voltage Lab, Mississippi State, MS 39762 USA

[3] Chongqing Elect Power Corp, Chongqing 401147, Peoples R China

来源：

IEEE TRANSACTIONS ON POWER DELIVERY | 2011年 / 26卷 / 02期

关键词：

Condition assessments; evidential reasoning; fuzzy approach; power transformers; FAULT-DIAGNOSIS; EXPERT-SYSTEM; LIFE;

D O I：

10.1109/TPWRD.2010.2096482

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper presents an integrated model based upon the fuzzy approach and evidential reasoning decision-making approach to condition assessment of power transformers. An assessing index system, including the DGA data, electrical testing, and oil testing, is established to facilitate the assessing model. The model is composed of two levels, that is, the fuzzy model and evidential reasoning model. The fuzzy model is proposed for generating the original basic probability assignments for the second-level model. Afterwards, an evidential reasoning decision-making model is utilized to combine all of the evidence and give an overall evaluation conclusion. Based upon this integrated model, a decision-making procedure is put forward to serve as an effective tool for transformer condition assessments. The results show that the assessing model is capable of offering an overall evaluation of the observed transformer condition.

引用

页码：1111 / 1118

页数：8