Two-Stage Optimization Scheduling of Integrated Energy Systems Considering Demand Side Response

Shuang Zeng, Heng Zhang (), Fang Wang, Baoqun Zhang, Qiwen Ke and Chang Liu
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Shuang Zeng: State Grid Beijing Electric Power Company, Beijing 100075, China
Heng Zhang: State Grid Beijing Electric Power Company, Beijing 100075, China
Fang Wang: State Grid Beijing Electric Power Company, Beijing 100075, China
Baoqun Zhang: State Grid Beijing Electric Power Company, Beijing 100075, China
Qiwen Ke: State Grid Beijing Electric Power Company, Beijing 100075, China
Chang Liu: State Grid Beijing Electric Power Company, Beijing 100075, China

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

Abstract: This study proposes a two-level optimization scheduling method for multi-region integrated energy systems (IESs) that considers dynamic time intervals within the day, addressing the diverse energy characteristics of electricity, heat, and cooling. The day-ahead scheduling aims to minimize daily operating costs by optimally regulating controllable elements. For intra-day scheduling, a predictive control-based dynamic rolling optimization model is utilized, with the upper-level model handling slower thermal energy fluctuations and the lower-level model managing faster electrical energy fluctuations. Building on the day-ahead plan, different time intervals are used for fast and slow layers. The slow layer establishes a decision index for command cycle intervals, dynamically adjusting based on ultra-short-term forecasts and incremental balance corrections. Case studies demonstrate that this method effectively leverages energy network characteristics, optimizes scheduling intervals, reduces adjustment costs, and enhances system performance, achieving coordinated operation of the IES network and multi-energy equipment.

Keywords: integrated energy system; two-level optimization scheduling method; generative adversarial network; dynamic time interval; intra-day scheduling (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
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