Abstract
In order to optimize the total operation costs of the integrated energy system (IES) and reduce carbon emissions, a low carbon optimal dispatch model is proposed, in which both of the low carbon and economic efficiency are taken into account. Firstly, a model of integrated energy system is established, which includes coupled components such as electricity to gas (P2G), gas-fired cogeneration units (gas-fired CHP) and gas-fired boilers (GB), etc. The carbon trading mechanism is introduced into the dispatch model of the system, and an improved stepped carbon trading model is established, in which the carbon trading price is set by carbon emission intervals. A low carbon economic dispatch model for the electricity-thermal-gas interconnection energy system is then established, taking into account the carbon trading costs and system operation costs. Finally, the dispatch results of four dispatch models are compared and analyzed to verify the effectiveness of the proposed model.
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