Integrated Modelling Approach for CCES Grid Connection and Fuzzy Logic Frequency Regulation

Accelerating the energy transition and expanding the application of renewable energy have become international trends in the face of the urgent need for global sustainable development. However, the uncertainty of new energy sources brings multi-dimensional challenges to power system such as power balance and stability control. Compressed carbon dioxide energy storage(CCES), as a new large-scale energy storage technology, shows great potential for application. Although there have been studies focusing on the thermodynamics and system design of CCES, the studies on grid-connected adaptation and frequency regulation are still insufficient. To this end, this paper proposes an integrated CCES grid connected and fuzzy logic frequency regulation modelling approach, intending to enhance the applicability and frequency regulation capability of CCES in the power grid through refined modelling and innovative frequency regulation strategies. Through simulation experiments, the practicality and superiority of the proposed method are demonstrated, providing technical support for the application of CCES in new power system.