Wind utilization and carbon emissions equilibrium: Scheduling strategy for wind-thermal generation system.

As a developing country and one of the world's largest carbon emitter, China has been facing significant pressure to reduce fossil fuel use while maintaining sustainable socio-economic growth. This paper proposes a multi-objective optimization method for a joint wind thermal generation system to reduce carbon emissions and increase wind power utilization while guaranteeing power supply demand risk and profitability. Wind and coal thermal power plant generation sources are scheduled into the joint system and connected to the same grid. The thermal power bears the basic load and the wind power seeks more chances to connect to the main grid. A model transformation method is applied and Lingo 13.0 software is used to solve the model. A case study from Ningxia, China is presented to demonstrate the practicality and efficiency of the optimization mode, the results from which showed that the proposed model was able to improve the emissions performance and increase the wind energy utilization, while guaranteeing power supply reliability and achieve maximum profitability, which could assist authorities when developing power generation plans. The results under different scenarios showed that a minimum and maximum wind power utilization rate existed in the joint wind-thermal power generation system, and that units with higher conversion efficiencies and lower emissions parameters were more reasonable when seeking to increase wind power utilization and reduce carbon emissions. The system generation profitability was found to increase for joint systems connected to the main grid when wind power utilization was increased. Lastly, several management proposals are given in this paper to ensure better joint system application. [ABSTRACT FROM AUTHOR]