Design and Modelling of Heat-Coupled Storage System with High- and Low-Pressure Bypass: Electrothermal Characteristics and Peak Regulating Performance

To achieve a balance between supply and demand during cogeneration system operation, it is necessary to improve the peak regulation capacity regulatory flexibility of unit. Considering excellent performance energy storage systems, heat-coupled with high- low-pressure bypass proposed increase capacity. Employing 300 MW heating unit as research object, thermal models traditional-pumping steam-heating system, coupled were built using Aspen Plus software. The electric characteristics three well depth analysed under different heat release loads. Results indicate that low-voltage both control Moreover, has greater influence on maximum thermoelectric ratio minimum charge rate than thereby extending range safe operation. are 65.55 21.85%, respectively, while heat-release process 39.32 13.10%.