Low-Carbon Dispatch of an Integrated Energy System Considering Confidence Intervals for Renewable Energy Generation

作者：Yan Shi, Wenjie Li, Gongbo Fan, Luxi Zhang, Fengjiu Yang · 发表于：Energy Engineering · 年份：2024 · DOI：10.32604/ee.2023.043835 · 被引用次数：5 · 研究领域：Integrated Energy Systems Optimization、Smart Grid Energy Management、Electric Power System Optimization

Addressing the insufficiency in down-regulation leeway within integrated energy systems stemming from the erratic and volatile nature of wind and solar renewable energy generation, this study focuses on formulating a coordinated strategy involving the carbon capture unit of the integrated energy system and the resources on the load storage side. A scheduling model is devised that takes into account the confidence interval associated with renewable energy generation, with the overarching goal of optimizing the system for low-carbon operation. To begin with, an in-depth analysis is conducted on the temporal energy-shifting attributes and the low-carbon modulation mechanisms exhibited by the source-side carbon capture power plant within the context of integrated and adaptable operational paradigms. Drawing from this analysis, a model is devised to represent the adjustable resources on the charge-storage side, predicated on the principles of electro-thermal coupling within the energy system. Subsequently, the dissimilarities in the confidence intervals of renewable energy generation are considered, leading to the proposition of a flexible upper threshold for the confidence interval. Building on this, a low-carbon dispatch model is established for the integrated energy system, factoring in the margin allowed by the adjustable resources. In the final phase, a simulation is performed on a regional electric heating integrated energy system. This simulation seeks to assess the impact ...