Accurate Modeling of CHP Plant by Digital Twin and Transformer Neural Network.

This paper proposes an accurate modeling method for CHP plant by combining the digital twin(DT) and Transformer. Firstly, the actual operating data of the CHP plant is real-time affined to the simulation platform through DT. As Transformer has the advantages of strong robustness, parallel computing and wide applicability. It is used to establish the accurate model of supercritical CHP plant The innovation of this modeling method lies in the successfully combination of DT and Transformer, which has important reference value for promoting the flexible operation capacity of CHP plant. Finally, the effectiveness of the proposed model method is confirmed through the simulations on a 350 MW CHP plant.