International Journal of Nonlinear Analysis and Applications

Matrix modeling and optimization calculation method for large scale integrated energy system

Document Type : Research Paper

Authors

1 Department of Electrical Engineering, Damghan Branch, Islamic Azad University, Damghan, Iran

2 AAU ENERGY, Aalborg University, Esbjerg, Denmark

Abstract

We-Energy (WE), as an important energy unit with full duplex and multi-energy carriers in the integrated energy system (IES), uses the coupling matrix to connect the network-side and demand-side energy. However, the coupling matrix of WE is very hard to be formulated directly due to the complicated internal structure and the flexibility of operation mode. This paper proposes a multi-step method for the modeling of WE. According to the method, the conversion process in the WE can be separated into several steps and the WE model can be built by coupling matrix in each step. Then, the WE model is extended by considering the renewable energy, location of storage and different types of demand response. Because of the non-linearity caused by the dispatch factors, the computational complexity increases greatly for solving the optimal scheduling issue of the WE. In order to reduce the computational burden, the variable substitution is added in the proposed modeling method. The results of simulation cases are presented to demonstrate the performance of proposed modeling and calculation method.

Keywords

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International Journal of Nonlinear Analysis and Applications
Volume 14, Issue 1
January 2023
Pages 2455-2468
  • Receive Date: 19 April 2022
  • Revise Date: 16 May 2022
  • Accept Date: 07 June 2022