Dynamic security control in heat and electricity integrated energy system with an equivalent heating network model

Zhang, Suhan, Gu, Wei, Lu, Shuai, Yao, Shuai ORCID: https://orcid.org/0000-0002-7202-7961, Zhou, Suyang and Chen, Xiaogang 2021. Dynamic security control in heat and electricity integrated energy system with an equivalent heating network model. IEEE Transactions on Smart Grid 12 (6) , pp. 4788-4798. 10.1109/TSG.2021.3102057

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Abstract

Intensified interaction between electric power system (EPS) and district heating network (DHN) has raised an urgent requirement of security control to ensure the regular operation of the heat and electricity integrated energy system (HE-IES). However, the implicit expressions of thermal dynamics remain an obstacle to building the quantitative relationships between the EPS and the DHN. To solve this, this paper proposes a novel dynamic model of the district heating network, which contains the equivalent pipe model and the analytical thermal source-load function (TSLF). Then, the interaction between EPS and DHN is divided into the energy flow calculation at the control points and the dynamic simulation during the control intervals to investigate the coupling effect. On this basis, the dynamic characteristics in HE-IES are employed to quantitatively establish the security control strategy using the combined sensitivity analysis. Case studies verify the accuracy and efficiency of the proposed method.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Engineering
Publisher:	Institute of Electrical and Electronics Engineers
ISSN:	1949-3053
Date of Acceptance:	30 July 2021
Last Modified:	28 Sep 2023 15:30
URI:	https://orca.cardiff.ac.uk/id/eprint/161949

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