A New Improved Entropy Method and Its Application in Power Quality Evaluation

作者：Ouyang Sen^*; Liu Ziwen; Li Qing; Shi Yili

来源：3rd International Conference on Mechatronics and Intelligent Materials (MIM 2013), XiShuangBanNa, 2013-05-18 To 2013-05-19.

DOI：10.4028/www.scientific.net/AMR.706-708.1726

• power quality
• entropy method
• artificial neural network

This paper puts forward a new improved entropy method, which fixes the problem of traditional entropy weight method that entropy weights present the wrong message of entropy when all the entropy values are close to 1. The proposed method achieved efficient performance by designing calculation model of BP network. Firstly, the synthesis weights of power quality indexes were calculated by rank correlation analysis and the improved entropy method, which avoids the one-sidedness of subjective or objective. And the quantitative values of multi-index were obtained. Then a calculation model of BP network to realize this evaluation method is designed in this paper, making it more efficient and more practical. Finally, the evaluation of a power supply bureau has verified the effectiveness of the proposed method.

• 出版日期2013
• 单位华南理工大学