ITM Web Conf.
Volume 47, 20222022 2nd International Conference on Computer, Communication, Control, Automation and Robotics (CCCAR2022)
|Number of page(s)
|Control Technology and Robotics Technology
|23 June 2022
A comprehensive evaluation method of electric power quality based on improved grey correlation analysis
1 State Grid Sanmenxia Electric Power Supply Company, 472000 Sanmenxia, Henan, China
2 Wuhan University of Technology, School of Mechanical and Electronic Engineering, 430000 Wuhan, Hubei, China
3 State Grid Lushi County Electric Power Supply Company, 472200 Lushi County, Henan, China
* Corresponding author: firstname.lastname@example.org
Comprehensive evaluation of electric power quality is essential to the implementation of effective power quality control. In traditional evaluation methods, the weight of indicators is fixed and lacks flexibility. Aiming at this problem, this paper has proposed a power quality evaluation method based on improved grey correlation method. This method uses improved analytic hierarchy process (IAHP) to calculate subjective weights and introduces the improved entropy weight method (IEWM) that is modified using variable weight theory which calculates variable objective weights. The proposed method also uses intergrated weighting to combine the subjective and objective weights calculated above, obtaining multidimensional indicator weights. Finally, improved gray correlation analysis (IGCA), improved through employing ideal solution theory and logarithmic information aggregation method based on barrel theory, is implemented in this method to comprehensively evaluate electric power quality.
© The Authors, published by EDP Sciences, 2022
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