In recent years, as a promising option to improve the overall efficiency of energy utilization and absorptive capacity of renewable energies, the integrated energy system (IES) has raised great interest in academies and industries. Multi-energy flow (MF) calculation, which differs from the traditional power flow calculation, plays a basic role in analyzing IES. MF calculation based on Newton-Raphson method has been proposed in literature, but its calculation efficiency is not high. In this paper, a fast decoupled MF (FDMF) calculation method for IES is proposed. Its main idea is to replace the original Jacobian matrix of MF calculation based on Newton-Raphson method with a diagonal and constant Jacobian matrix by the transformation. The simulations demonstrate that the proposed FDMF method can increase the calculation efficiency by at least 4 times with high calculation accuracy.

中文翻译：

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集成能源系统的快速解耦多能源流量计算

近年来，作为提高整体能源利用效率和可再生能源吸收能力的有前途的选择，综合能源系统（IES）在学术界和工业界引起了极大兴趣。与传统的潮流计算不同，多能量流（MF）计算在IES分析中起着基本作用。已有文献提出基于牛顿-拉夫森法的MF计算，但其计算效率不高。本文提出了一种用于IES的快速解耦MF（FDMF）计算方法。其主要思想是通过变换用对角常数Jacobian矩阵代替基于Newton-Raphson方法的MF计算的原始Jacobian矩阵。