Electric power industry is the strategic center of energy development

which plays a leading and supporting role in the development of national economy. At the same time

the electric power industry plays an important role in energy conservation and emission reduction as well as energy structure transformation and upgrading. Based on the new requirements of the 13th Five-Year Plan for energy development

the target planning theory is used to establish a power supply structure optimization model that gives attention to the environmental and economic objectives

and the sustainable development of power resources is studied. Finally

taking the data of power supply structure in Sichuan province for example

the simulation calculation is carried out

the carbon price coefficient is used to seek the target of power supply structure under the double benefits of economy and environment

and the rationality and feasibility of the proposed model are verified

which provides a new idea for the research of power supply structure optimization.