Environmental economic dispatch of integrated regional energy system considering integrated demand response

To reduce the emissions of greenhouse gases and air pollutants, various low-emission measures have been taken in the power system, which are gradually intensifying the interdependency among different energy systems. Considering the carbon trading scheme and different air pollutant control technologies, this paper proposes an environmental economic dispatch model for the coordinated operation of an integrated regional energy system, which consists of a regional electricity supply network and a natural gas network, along with district energy hubs. Each energy hub contains a combined heat and power unit, a CO2-capture-based power to gas facility, a heat pump, a gas furnace and different energy storage facilities. To achieve an optimized balance between operational cost and emissions during the environmental economic dispatch of this integrated regional energy system, a price-based integrated demand response program is introduced in the energy hub. Then the proposed model is converted into a mixed-integer linear programming problem to find solutions efficiently. Case studies are carried out to demonstrate the effectiveness of proposed environmental economic dispatch model of the integrated regional energy system.