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Abstract
Fast Decomposed Method for Dynamic Energy Flow Calculation in Integrated Electricity and Heat System
Highlights
The growing energy crisis and environmental problems have promoted a new requirement to build and efficient and clean energy structures [1,2]
We assume that the integrated electricity and heat system (IEHS) operate at the heat-load-following mode [10,11,12,13], in which condition the district heating system (DHS) is an equivalent load of electric power system (EPS), and the electric power is determined according to the states in DHS
The differences of the results by the fast decomposed method (FDM) and the tradition dynamic EFC method (TM) for the EPS is mainly resulted from the calculated electric output of the coupling units, which is determined by the energy flow distribution in DHS
Summary
The growing energy crisis and environmental problems have promoted a new requirement to build and efficient and clean energy structures [1,2]. Reference [18] further optimized the differential step to ensure higher accuracy and efficiency, and the model was used for real-time optimization On this basis, the uncertainty of renewable energy resources was included in [19], where an iterative method was proposed based on the dynamic IEHS model. Literatures above study the EFC for IEHS from different aspects, several problems still exist: 1) The computation amounts greatly increase along with the increment of system scale, which is not suitable for simultaneous analysis; 2) The analysis for the meshed network is still blocked, where the bidirectional hydraulic states in IEHS are complicated; 3) The improvement of the efficiency in EFC mainly based on the static model, while the researches using dynamic model are few.
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