Intelligent String Energy Storage for New Power Systems

The document discusses the rapid acceleration of new energy construction in China, with photovoltaic and wind power capacities growing significantly. By 2023, new energy accounted for nearly 36% of total installed capacity, projected to exceed 50% by 2025. However, this increase poses challenges to grid stability, including peak modulation, frequency modulation, transient overvoltage, and broadband oscillation risks. Current solutions include supporting thermal power units, using condensers, and deploying battery energy storage systems (BESS) with grid-forming (GFM) capabilities. The document highlights policies and pilot projects in the UK, Australia, US, and China, emphasizing GFM technology's role in enhancing grid strength and enabling higher renewable energy penetration. Intelligent string energy storage solutions are presented as a key technology to address these challenges and support the construction of new power systems.