Entropy State Mechanism and Analysis Method of Integrated Energy System for Renewable Energy Integration

被引：0
|
作者：
Li J. [1 ]
Wang D. [1 ,2 ]
Jia H. [1 ,2 ]
Li Y. [1 ]
机构：
[1] Key Laboratory of the Ministry of Education on Smart Power Grids, Tianjin University, Tianjin
[2] Key Laboratory of Smart Energy & Information Technology of Tianjin Municipality, Tianjin University, Tianjin
来源：
Dianli Xitong Zidonghua/Automation of Electric Power Systems | 2023年 / 47卷 / 09期
基金：
中国国家自然科学基金;
关键词：
energy degradation; entropy increase flow; entropy state; integrated energy system; source and load uncertainty;
D O I：
10.7500/AEPS20220728003
中图分类号：
学科分类号：
摘要：
The conversion of energy with different qualities in an integrated energy system (IES) and the source and load uncertainty on the background of high proportional renewable energy integration both increase the energy unavailability of the system. To analyze the energy unavailability caused by the above scenarios in a unified and quantitative way, based on the network properties of IES, the entropy state mechanism and analysis method of IES for the renewable energy integration is proposed. Based on the IES exergy flow mechanism model, the IES thermodynamic entropy increase mechanism model on the physical level is established. Based on the generalized information work theory, the IES informatics equivalent thermodynamic entropy increase mechanism model is introduced. Combining with the networking characteristics of IES, the basic concepts of IES entropy state including entropy state, entropy increase flow, cumulative entropy increase flow, entropy increase source, and node entropy increase are defined. On this basis, the entropy state modeling method for each link in IES is proposed. Finally, case studies verify that the proposed model can effectively solve the entropy state distribution of IES, and the influence of source and load prediction difference on the entropy distribution of the system is discussed. © 2023 Automation of Electric Power Systems Press. All rights reserved.
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页码：47 / 58
页数：11
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