Analysis of Factors Influencing Life Cycle Costs of Transformers Based on TOPSIS Method

Long Zhan, Hui Chang, Xiaolu Zhu, Xin Zhao, Gang Wei, Ziyu Cai, Haibin Xie, Xinyue Zhao and Heng Chen ()
Additional contact information
Long Zhan: State Grid Ningxia Electric Power Co., Ltd. Material Company, Yinchuan 750001, China
Hui Chang: State Grid Ningxia Electric Power Co., Ltd. Material Company, Yinchuan 750001, China
Xiaolu Zhu: State Grid Ningxia Electric Power Co., Ltd. Material Company, Yinchuan 750001, China
Xin Zhao: State Grid Ningxia Electric Power Co., Ltd. Material Company, Yinchuan 750001, China
Gang Wei: State Grid Ningxia Electric Power Co., Ltd. Material Company, Yinchuan 750001, China
Ziyu Cai: State Grid Ningxia Electric Power Co., Ltd. Material Company, Yinchuan 750001, China
Haibin Xie: State Grid Ningxia Electric Power Co., Ltd. Material Company, Yinchuan 750001, China
Xinyue Zhao: School of Energy Power and Mechanical Engineering, North China Electric Power University, Beijing 102206, China
Heng Chen: School of Energy Power and Mechanical Engineering, North China Electric Power University, Beijing 102206, China

Energies, 2024, vol. 17, issue 23, 1-20

Abstract: The transformer is an essential piece of equipment in a power system, and its selection is directly related to the security, stability, and economics of the power system. This paper presents a comprehensive investigation into the life cycle costs (LCCs) of transformers. Our analysis of multiple samples delves into the composition and influencing factors in transformer life cycle costs. The findings reveal that the voltage level exerts a significant influence on cost, with higher voltage levels typically associated with greater costs. Moreover, the proportion of each cost component within the life cycle cost remains relatively stable. For this paper, we also conducted a weighted assessment of life cycle cost factors utilizing the TOPSIS method and determined that the voltage level and wiring method have the most substantial impact. In addition, the specific effects of the voltage level, wiring method, transformer type, and cooling method on LCCs are investigated using the control variable method. At the same time, the coupling influence of the wiring method, transformer type, and cooling method on transformer programs of different voltage levels is considered, which provides an essential reference for power grid enterprises in making engineering and construction investments.

Keywords: life cycle cost (LCC); voltage level; wiring method; TOPSIS method; smart transformer; analysis of influencing factors (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2024
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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