Research on Real-Time Optimized Operation and Dispatching Strategy for Integrated Energy System Based on Error Correction

Aidong Zeng, Sipeng Hao, Jia Ning, Qingshan Xu and Ling Jiang
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Aidong Zeng: School of Electric Power Engineering, Nanjing Institute of Technology, Nanjing 211167, China
Sipeng Hao: School of Electric Power Engineering, Nanjing Institute of Technology, Nanjing 211167, China
Jia Ning: School of Electric Power Engineering, Nanjing Institute of Technology, Nanjing 211167, China
Qingshan Xu: School of Electrical Engineering, Southeast University, Nanjing 210096, China
Ling Jiang: Electric Power Research Institute, State Grid Tianjin Electric Power Company, State Grid, Tianjin 300010, China

Energies, 2020, vol. 13, issue 11, 1-21

Abstract: A real-time error correction operation model for an integrated energy system is proposed in this paper, based on the analysis of the real-time optimized operation structure of an integrated energy system and the characteristics of the system. The model makes real-time corrections to the day-ahead operation strategy of the integrated energy system, to offset forecast errors from the renewable power generation system and multi-energy load system. When unbalanced power occurs in the system due to prediction errors, the model comprehensively considers the total capacity of each energy supply and energy storage equipment, adjustable margin, power climbing speed and adjustment cost, to formulate the droop rate which determines the unbalanced power that each device will undertake at the next time interval, while taking the day-ahead dispatching goals of the system into consideration. The case study shows that the dispatching strategy obtained by the real-time error correction operation model makes the power output change trend of the energy supply equipment consistent with the day-ahead dispatching plan at the next time interval, which ensures the safety, stability and economy of the real-time operation of the integrated energy system.

Keywords: integrated energy system; real-time optimized operation; combined cooling and heating power (CCHP); dispatching strategy; error correction (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: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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