A scenario-based optimal dispatch for joint operation of wind farms and combined heat and power plants considering energy flexibilities in heating networks

Abstract

A scenario-based optimal dispatch is proposed for joint operation of a wind farm and combined heat and power (CHP) plant considering energy flexibilities in heating networks. First, the heating network is modelled, and energy flexibility is used to improve the flexible adjustment ability of the CHP plant. Then, considering the uncertainty of wind power, a scenario-based optimal dispatch model for wind farms and CHP plants with heating networks is proposed to maximize the revenue expectation of the joint operation. The simulation results show that the joint operation revenue is improved compared with that of independent operation. Considering the energy flexibilities in heating networks, the CHP plant in the joint system can compensate for the fluctuations in wind power output, promote the integration and consumption of wind power, and reduce the penalty cost caused by the uncertainty of wind power.