Low-carbon economic dispatch for integrated heat and power systems considering network constraints

Multiple energy systems enable a deep interconnection between power system and heat system and provide an effective way for low-carbon development. Here, a low-carbon economic dispatch (LCED) model for integrated heat and power system is proposed. The emission characteristics of different generation units are modelled. The objective function is to minimise the total cost, including the operation cost and carbon emission cost. Numerical results based on an integrated systems including a modified IEEE RTS-79 system and a seven-node heating system show the effectiveness of the proposed model. The effects of carbon price on operation conditions have been further analysed.