Earticle

초록

영어

To improve the accuracy of the state evaluation is the most important for the relay protection state maintenance. Therefore, a fuzzy synthetic evaluation of relay protection based on variable weight value is proposed in this paper. Pick up the major factor of the device and secondary circuit of relay protection to establish a reasonable index system of state evaluation. Then according to the variable weight comprehensive concept of factor space theory, we introduce the balance function to adjust the weight coefficient of each factor. Final, get the membership function in triangle trapezoid distribution to show the condition information, and select synthetic operator, then an evaluation system of relay protection with objectively and accurately is proposed. Running examples show that after dealing with the variable weight, some factors weight value become larger or smaller, so running state of evaluate factor may be changed, make it close to the real running state.

목차

Abstract
 1. Introduction
 2. The Index System of Relay Protection Status Evaluation
 3. Variable Weight Coefficients of the Comprehensive Evaluation
  3.1. Constant Weight Coefficient
  3.2. Variable Weight Coefficient
 4. State Evaluation Steps
  4.1. Factor and Comment Sets
  4.2. Membership Function
  4.3. Results of Synthesis Fuzzy Comprehensive Evaluation
 5. Case Analyses
  5.1. Fuzzy Relationship Matrix
  5.2. Constant and Variable Weight Coefficient
  5.3. Fuzzy Comprehensive Evaluation
 6. Conclusions
 References

키워드

저자

• Renjie Song [ College of Information Engineering, Northeast Dianli University, Jilin 132012, China ]
• Yuming Chen [ College of Information Engineering, Northeast Dianli University, Jilin 132012, China ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  International Journal of Multimedia and Ubiquitous Engineering

• 간기

  월간

• pISSN

  1975-0080

• 수록기간

  2008~2016

• 등재여부

  SCOPUS

• 십진분류

  KDC 505 DDC 605