Two-dimensional evaluation model of electrical equipment based on combined weighting and rating algorithm

Abstract

In the process of electric energy substitution, many industries have gradually replaced the traditional energy consumption equipment with new electrical ones. To avoid the disadvantage of one-sidedness in equipment evaluation and provide a more comprehensive reference for enterprises to replace equipment, a two-dimensional evaluation model composed of static and dynamic rating model is proposed in this paper based on combined weighting and rating algorithm, considering the comprehensive performance in both the inherent properties and the actual power consumption features of electrical equipment. The static and dynamic parameters related are firstly extracted, and then the weights of parameters are determined by the analytic hierarchy process (AHP) subjective weighting algorithm and principal component analysis (PCA) objective weighting algorithm. To compare the performance of different equipment more intuitively, the rank sum ratio (RSR) and technology for order preference by similarity to an ideal solution (TOPSIS) are used to rate the static and dynamic scores, respectively. Case studies for different types of electrical tea dryers in Anji, Zhejiang Province, China, show that the proposed evaluation model is more comprehensive and the rating result is more reasonable, which helps the enterprises have a more comprehensive understanding of the electrical equipment performance.

Keywords

• Electric energy substitution
• Two-dimensional evaluation
• Static parameter
• Dynamic parameter
• AHP
• PCA