Abstract
Abstract Compared with the single energy structure in the past, the energy coupling system can realize the coordinated planning and mutual economic regulation among various energy systems, which plays an important role in improving the efficiency of energy utilization. At present there are many related studies but there is a lack of systematic summary. Combining the domestic actual situation, the article mainly lists several multi-energy coupling systems including EWN, IES, BPG, etc., to analyze the energy sources, structural composition and how these systems play a good role in improving energy efficiency, it also summarizes the present situation of comprehensive energy coupling system development research and the shortcomings of current research and prospects for future development are put forward.
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