An integrated energy system (IES) represents coordinated operations of constrained natural gas (NG), electric power, and thermal systems in three distinctly different time scales. Microturbines (MTs) are increasingly utilized in IES as suppliers of combined cooling, heating and power (CCHP) units, which optimize the delivery and the usage of interdependent NG, electric power, and thermal energy sectors in a distributed IES. In this paper, a dynamic IES model is proposed based on the singular perturbation theory (SPT), which denotes the dynamic interactions of the three energy systems. The dynamic IES model representing a boundary layer system (BLS) is solved and analyzed in three time-scales. The simulation results demonstrate the validity of the proposed dynamic IES model in three time-scales, highlighting the necessity of incorporating the dynamic characteristics of NG, electric power, and thermal energy in dynamic analyses of distributed IES.

中文翻译：

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综合能源系统动态建模的奇异扰动

综合能源系统 (IES) 代表了受限天然气 (NG)、电力和热力系统在三个截然不同的时间尺度上的协调运行。微型涡轮机 (MT) 在 IES 中越来越多地用作冷热电联合 (CCHP) 装置的供应商，可优化分布式 IES 中相互依赖的天然气、电力和热能部门的交付和使用。在本文中，基于奇异微扰理论（SPT）提出了动态IES模型，该模型表示三个能量系统的动态相互作用。在三个时间尺度上求解和分析代表边界层系统 (BLS) 的动态 IES 模型。仿真结果证明了所提出的动态 IES 模型在三个时间尺度上的有效性，