Coordinated Economic Dispatch of Wind-Photovoltaic-Thermal-Storage System Considering the Environmental Cost

In order to accurately measure the social cost of thermal units and promote the consumption of clean energy, this paper proposes a coordinated economic dispatch method of wind-photovoltaic-thermal-storage system considering the environmental cost. Firstly, the pollutant emission of thermal units is sorted and quantified, and the environmental cost is included in the power generation cost of thermal units. Then the typical output scenarios of wind and photovoltaic power are analyzed and classified as the basis for the formulation of dispatch scheme. Finally, a coordinated economic dispatch model considering the operation cost of thermal units, environmental cost, charging and discharging loss cost of energy storage devices and the penalty cost of abandoned wind and photovoltaic power is established, which is verified by an example.