Multi-time scale optimisation strategy for effective control of small-capacity controllable devices in integrated energy systems

Zhenyu Wang, Yanfang Wang, Chupeng Xiao, Wenbo Hu, Ruoxi Geng, Qingyi Liu, Botao Zhou and Meng Yu

Cyber-Physical Systems, 2025, vol. 11, issue 1, 67-92

Abstract: Integrated energy systems offer significant potential for synergistic utilisation of electricity, heat, and gas, leading to improved energy efficiency. However, effectively controlling numerous small-capacity devices within these systems presents operational challenges. This paper proposes a novel multi-time scale optimisation strategy that aggregates small-capacity controllable devices to address this issue. To enable aggregation, we utilise an approximate Minkowski sum method to unify devices with similar control characteristics. A two-stage scheduling strategy is developed, including day-ahead and intra-day stages. The day-ahead stage involves optimisation based on forecasted information, aiming for economic and low-carbon operation. In the intra-day stage, a rolling optimisation method utilising model predictive control is employed, incorporating a penalty term to achieve precise load response through power adjustment. Extensive simulation experiments validate the feasibility and reliability of the proposed strategy in effectively controlling small-capacity devices within integrated energy systems.

Date: 2025
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DOI: 10.1080/23335777.2024.2328248

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