Abstract

The recognition of life cycle carbon footprint (LCCF) of power transmission equipment is of great significance to the de-carbonization of power systems. Based on the technical features of power transmission equipment, the concept of LCCF is proposed in this paper, which includes fixed carbon emissions and variable carbon emissions. Firstly, to evaluate the LCCF of power transmission equipment, the life cycle of transmission equipment is divided into five stages: raw materials, manufacturing and assembly, transportation, operation, and maintenance, decommissioning and scrapping according to the time series, and the carbon emissions in all stages of the life cycle are calculated in combination with various carbon emission factors and quality criteria. Then, based on the concept of equal annual value, a conversion model for carbon footprint is proposed to realize the comprehensive evaluation of LCCF. Finally, the correctness and effectiveness of the proposed method are verified by simulation analysis. The results show that fixed carbon emissions account for a certain proportion of LCCF. To achieve the double carbon goal on schedule, it is necessary to study the LCCF of power transmission equipment and make independent contributions to accelerating the process of de-carbonization.

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