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引用次数: 0
摘要
微能源网(MEG)在实现碳中和及有效利用可再生能源方面发挥着至关重要的作用。这项研究的重点是优化 MEG 互联的协同作用。由于系统内不同运营实体的发展路径各不相同,MEG 之间出现了信息壁垒,给系统的协同管理带来了巨大困难。为此,本文提出了一种针对系统内多个利益相关方的分散式协调调度模型。该模型考虑了 MEG 之间的能源互动以及与可再生能源相关的固有不确定性。具体来说,该模型采用随机优化方法,通过生成随机情景来描述可再生能源输出的不确定性。此外,它还结合了分析目标级联(ATC)方法,将目标函数和约束条件解耦,为单个 MEG 创建自主调度子模型。这种分散方法确保了独立建模和协调解决问题。模拟验证了:(1) 基于 ATC 的 MEG 间能源互动策略有效地实现了多个 MEG 的分散协调调度;(2) 分散协调调度解决方案接近全局最优,同时考虑了各系统实体的利益。
A decentralized dispatch model for multiple micro energy grids system considering renewable energy uncertainties and energy interactions
Micro energy grids (MEGs) play a vital role in realizing carbon neutrality and efficient utilization of renewable energy resources. This research focuses on optimizing the synergy of MEG interconnections. Given the diverse development paths of different operating entities within the system, information barriers emerge among MEGs, creating great difficulties for the collaborative system management. In response, this paper proposes a decentralized coordinated dispatch model targeting multiple stakeholders within the system. This model accounts for energy interactions between MEGs and the inherent uncertainty associated with renewable energy sources. Specifically, stochastic optimization approach was applied to characterize the uncertainty of renewable energy output by generating stochastic scenarios. Furthermore, it incorporates the analytical target cascading (ATC) method to decouple objective functions and constraints, creating autonomous scheduling sub-models for individual MEGs. This decentralized approach ensures independent modeling and coordinated problem-solving. Simulations verify that (1) the ATC-based inter-MEG energy interaction strategy effectively achieves decentralized coordinated scheduling of multiple MEGs and (2) the decentralized coordinated scheduling solution closely approximates the global optimum while considering the interest of various system entities.
期刊介绍:
The Journal of Renewable and Sustainable Energy (JRSE) is an interdisciplinary, peer-reviewed journal covering all areas of renewable and sustainable energy relevant to the physical science and engineering communities. The interdisciplinary approach of the publication ensures that the editors draw from researchers worldwide in a diverse range of fields.
Topics covered include:
Renewable energy economics and policy
Renewable energy resource assessment
Solar energy: photovoltaics, solar thermal energy, solar energy for fuels
Wind energy: wind farms, rotors and blades, on- and offshore wind conditions, aerodynamics, fluid dynamics
Bioenergy: biofuels, biomass conversion, artificial photosynthesis
Distributed energy generation: rooftop PV, distributed fuel cells, distributed wind, micro-hydrogen power generation
Power distribution & systems modeling: power electronics and controls, smart grid
Energy efficient buildings: smart windows, PV, wind, power management
Energy conversion: flexoelectric, piezoelectric, thermoelectric, other technologies
Energy storage: batteries, supercapacitors, hydrogen storage, other fuels
Fuel cells: proton exchange membrane cells, solid oxide cells, hybrid fuel cells, other
Marine and hydroelectric energy: dams, tides, waves, other
Transportation: alternative vehicle technologies, plug-in technologies, other
Geothermal energy