Carbon efficiency evaluation method for urban energy system with multiple energy complementary  

作　　者：Xianan Jiao Jiekang Wu Yunshou Mao Mengxuan Yan 

机构地区：[1]School of Automation,Guangdong University of Technology,Guangzhou 510006,P.R.China [2]Guangzhou Power Supply Bureau,Guangdong Power Grid Company,South China Power Grid,Guangzhou 510660,P.R.China [3]School of Electronic Information and Electrical Engineering,Huizhou University,Huizhou 516007,P.R.China

出　　处：《Global Energy Interconnection》2024年第2期142-154,共13页全球能源互联网（英文版）

基　　金：supported by the National Natural Science Foundation of China under Grant 51567002 and Grant 50767001.

摘　　要：Urban energy systems(UESs)play a pivotal role in the consumption of clean energy and the promotion of energy cascade utilization.In the context of the construction and operation strategy of UESs with multiple complementary energy resources,a comprehensive assessment of the energy efficiency is of paramount importance.First,a multi-dimensional evaluation system with four primary indexes of energy utilization,environmental protection,system operation,and economic efficiency and 21 secondary indexes is constructed to comprehensively portray the UES.Considering that the evaluation system may contain a large number of indexes and that there is overlapping information among them,an energy efficiency evaluation method based on data processing,dimensionality reduction,integration of combined weights,and gray correlation analysis is proposed.This method can effectively reduce the number of calculations and improve the accuracy of energy efficiency assessments.Third,a demonstration project for a UES in China is presented.The energy efficiency of each scenario is assessed using six operational scenarios.The results show that Scenario 5,in which parks operate independently and investors build shared energy-storage equipment,has the best results and is best suited for green and low-carbon development.The results of the comparative assessment methods show that the proposed method provides a good energy efficiency assessment.This study provides a reference for the optimal planning,construction,and operation of UESs with multiple energy sources.

关 键 词：Urban energy systems(UESs) Multiple energy complementary system Carbon efficiency evaluation Data downscaling Subjective and objective weight Gray correlation analysis 

分 类 号：TM73[电气工程—电力系统及自动化]