In order to further improve the economy and low carbon performance of microgrid operation,the dispatchable resources such as electric loads and electric vehicles on the load side are explored to participate in microgrid operation. Combined with the characteristics of continuous and discrete load demand response, a multi-type load comprehensive satisfaction index is proposed to evaluate the

microgrid load satisfaction level and prevent excessive load response. According to the traditional carbon capture mode, the coordinated operation strategy of using new energy to participate in the power supply of carbon capture equipment is proposed. The experimental results show that the addition of discrete characteristics of load demand response further enhances the flexibility of load, and the participation of new energy in carbon capture makes the microgrid reduce the operating cost of microgrid, carbon emissions and gas purchase cost.

discrete load demand response, microgrid, comprehensive satisfaction, ladder carbon trading, electric vehicle charging station