New method to eliminate negative frequency interference based on wavelet transformation and grey correlation degree theory

2013 ◽  
Vol 26 (9) ◽  
pp. 805-811
Author(s):  
Yuwen Mao ◽  
Yaqing Tu ◽  
Jianjun Wu
Keyword(s):  
Wavelet Transformation ◽  
Degree Theory ◽  
New Method ◽  
Grey Correlation ◽  
Correlation Degree ◽  
Grey Correlation Degree

The Applying of Grey Correlation Degree Theory on Quantitative Area Risk Assessment

2014 ◽  
Vol 915-916 ◽  
pp. 1500-1503
Author(s):  
Qing Min Si ◽  
Hao Zhang ◽  
Jin Lin Wu ◽  
Jing Qi Yu ◽  
Jian Min Yi
Keyword(s):  
Risk Assessment ◽  
Correlation Analysis ◽  
Degree Theory ◽  
Analysis Method ◽  
Grey Correlation ◽  
Correlation Degree ◽  
Correlation Analysis Method ◽  
Grey Correlation Degree

The quantitative area risk assessment (QARA) are definitted based on the characteristics of the area risk assessment, and the model of the QARA are proposesed. Based on the accident consequences analysis method and the theory of grey correlation, it presents the risk correlation analysis method which is used to analysis the risk correlation value between the projects, and discusses the grading method of the risk correlation according to the smooth handling idea. The practical applying results show that the theory of risk correlation has a good practical in QARA.

A Study on Grey Correlation Degree Model of Venture Capital Intrinsic Value

2013 ◽  
Vol 756-759 ◽  
pp. 4710-4715
Author(s):  
Lin Sen Yin
Keyword(s):  
Evaluation System ◽  
Intrinsic Value ◽  
Degree Theory ◽  
Actual State ◽  
Primary Analysis ◽  
Grey Correlation ◽  
State Evaluation ◽  
Correlation Degree ◽  
Grey Correlation Degree ◽  
Venture Enterprise

In view of the disfigurement that the former research mostly focus on the evaluation of the investment value before investment, not only this paper uses for reference to the former evaluation system, but also successfully integrates it into a unity that the evaluation before investment and after investment. This paper designs a set of evaluation criterion and a set of actual state evaluation system. Comparing both of them is the essential start of evaluation. Then according to it, and based on the grey correlation degree theory, this paper constructs a set of compositive evaluation indexgrowth imitating degree, The method provides a primary analysis frame for monitoring venture enterprise fostering.

scholarly journals Research on Clearing Model of Long-Term Transaction Considering Matching Degree between Generation and Load

2020 ◽  
Vol 165 ◽  
pp. 06033
Author(s):  
Zhang Lin ◽  
Zhang Qinghe ◽  
Zhang Xue ◽  
Gao Hui
Keyword(s):  
Similarity Analysis ◽  
Load Curve ◽  
Market Clearing ◽  
Grey Correlation ◽  
Correlation Degree ◽  
New Energy ◽  
Matching Degree ◽  
Flexible Load ◽  
Grey Correlation Degree

With the development of new energy and flexible load, there are many kinds of power and load characters in the power grid. It’s necessary to considerate the similarity between generation output and load when it’s market clearing. First, similarity analysis of generation-load curve based on the grey correlation degree is introduced, correlation between power generation enterprises and power users can be calculated. Then, market clearing model is built. market clearing mechanism is set which considering the matching degree between generation and load. The technological process of market clearing is given. Last, the effectiveness of the proposed clearing model is verified by an example.

A Model of Weight Absolute Grey Correlation Degree for the Transformer Bushing State Assessment

2013 ◽  
Vol 345 ◽  
pp. 507-510
Author(s):  
Rong Gu ◽  
Jin Sha Yuan ◽  
Fei Lv
Keyword(s):  
Correlation Coefficients ◽  
State Assessment ◽  
The State ◽  
Condition Based Maintenance ◽  
Normal Operation ◽  
Power Equipment ◽  
Accurate Assessment ◽  
Grey Correlation ◽  
Correlation Degree ◽  
Grey Correlation Degree

Accurate assessment for the operational status of the transformer bushing is not only a prerequisite for the implementation of condition-based maintenance, but also to ensure the normal operation of the transformer and the whole power equipment conditions. In the paper, a model of weight absolute grey correlation degree was used to assess the transformer bushing state. Firstly, determined the assessment indicators and handled them. Secondly, the weights, correlation coefficients and each association were calculated. Thirdly, to compare the largest association of assessment indicators in grades as the transformer bushing final run state. Finally, give the state assessment results, according to the remark set. The result shows the model works well.

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