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Analysis of the Relationships between Variables and Their Applications in the Energy Saving Field

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  • Yongqiang Zhu

    (School of Electrical and Electronic Engineering, North China Electric Power University, Beijing 102206, China)

  • Xinyi Li

    (School of Electrical and Electronic Engineering, North China Electric Power University, Beijing 102206, China)

  • Xizhen Mu

    (School of Electrical and Electronic Engineering, North China Electric Power University, Beijing 102206, China)

  • Yue Zhao

    (School of Electrical and Electronic Engineering, North China Electric Power University, Beijing 102206, China)

Abstract

Energy saving is an important measure to promote social green transformation. The traditional energy-saving ideas usually only focus on a specific loss, and seldom consider the possible relationship and influence among various losses. In relatively complex energy-using systems, there are often many kinds of losses, and each loss may have many influencing factors. There may be some relationship between these losses and the influencing factors. To solve this problem, this paper presents an analysis method of the variable association in multi-variable systems. First, the basic relationships between variables and the representation methods are discussed. The basic concept of a path between variables is given, and the analysis method of variable association based on path statistics is provided. This paper focuses on the analysis of the influencing factors and paths of the observed variables, as well as which observed variables will be affected by a control variable. Then, based on the correlation matrix, the quantitative analysis method of the influence between variables is given. Variable correlation analysis is innovatively applied in the field of energy saving to determine the correlation of losses through variable associations, guiding the preliminary screening of energy-saving measures and analyzing the collateral effects of these measures. Based on the correlations between energy losses, a scientific process for formulating energy-saving measures is proposed. The variable correlation analysis method proposed in this paper is a generalized method, which can judge the correlation between variables from the perspective of theoretical analysis and avoid the dependence on data. In addition to good applications in the field of energy conservation, it can also be widely used in construction, transportation, climate change, and other fields. The proposed energy-saving ideas take into account the intensity of influencing factors on loss and the correlation between loss, which improves the effectiveness of energy saving measures.

Suggested Citation

  • Yongqiang Zhu & Xinyi Li & Xizhen Mu & Yue Zhao, 2024. "Analysis of the Relationships between Variables and Their Applications in the Energy Saving Field," Energies, MDPI, vol. 17(15), pages 1-16, July.
    • Handle: RePEc:gam:jeners:v:17:y:2024:i:15:p:3753-:d:1445874
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    References listed on IDEAS

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    1. Pawe{l} Fiedor, 2014. "Mutual Information Rate-Based Networks in Financial Markets," Papers 1401.2548, arXiv.org.
    2. Patton, Andrew, 2013. "Copula Methods for Forecasting Multivariate Time Series," Handbook of Economic Forecasting, in: G. Elliott & C. Granger & A. Timmermann (ed.), Handbook of Economic Forecasting, edition 1, volume 2, chapter 0, pages 899-960, Elsevier.
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