An economic dispatch model of wind-thermal-bundled generation system considering carbon emission constraint and load transfer strategy
In the context of the transformation and upgrading of the new power system,the wind-thermal-bundled generation system will continuously improve the power transmission to meet the growing demand for clean energy.Therefore,this paper proposes an economic dispatch model of wind-thermal-bundled generation system considering carbon emission constraint and load transfer strategy.First of all,for the thermal power unit with improved flexibil-ity of the wind-thermal-bundled generation system,considering its ramp ability has been greatly improved,the dy-namic ramp modeling method is used to characterize its rapid climbing response ability.Then,considering that the improved thermal power unit still has carbon emission characteristics,the carbon emission constraint is added to the economic dispatching model of the power generation system.However,in this way,the dynamic ramp response ca-pability of thermal power units may be limited.In order to solve this contradiction,this paper coupled the wind-thermal-bundled generation system with the urban high-voltage distribution network,and let the flexible load re-sources in the urban high-voltage distribution network to participate in the economic dispatching of wind-thermal-bundled generation system,and finally the economic dispatching model taking into account the load transfer is formed.Finally,this paper conducts a joint simulation analysis of several wind-thermal-bundled generation systems and local high-voltage distribution networks in a practical area,which verifies the effectiveness of the proposed model.