Cascade High-Voltage Large-Capacity Energy Storage Technology Leader

This document introduces the background, technical features, and applications of cascade high-voltage and large-capacity energy storage technology, positioning the company as an advocate and leader in this field. It highlights China's national strategy for new energy development to achieve 'double carbon' goals and ensure energy security. The document discusses the rapid growth of the energy storage industry, moving into the GW-level era, and the challenges of large-capacity network energy storage systems, such as complex parallel operation, low efficiency, and safety hazards from local faults. Key technical breakthroughs include topology research for high short-circuit tolerance, network control with broadband oscillation suppression and transient stability, and systematic development of large-capacity high-voltage liquid-cooled energy storage converter devices. The solution addresses the need for adaptive support to weak grids, improving system stability and reliability. Typical applications are outlined, emphasizing the technology's role in enhancing grid voltage and frequency support, and overcoming bottlenecks in large-scale battery energy storage.