四方股份：公司在电力电子领域深耕多年

Core Insights - The company has deep expertise in the power electronics field, having won 1 National Science and Technology Progress Award and over 20 provincial and ministerial first prizes, with multiple products included in national key project plans [1] - Key achievements include high-efficiency, high-density, large-capacity DC transformer components, critical technologies, and core equipment, as well as research and engineering applications for multi-terminal flexible DC distribution networks [1] Company Overview - The company has developed a comprehensive product matrix in power electronics and DC fields, including medium-voltage converters, power electronic transformers, DC control protection systems, coordinated controllers, shore power, and ice-melting systems, covering critical areas such as flexible DC transmission and distribution, grid-forming equipment, power quality management, and special power supplies [1] - The company has established a full industry chain layout from technology research and development to product manufacturing and engineering applications [1] Key Technology Focus - The company focuses on several key technology areas, including flexible DC transmission technology, where it has participated in multiple national key projects, accumulating rich core technologies [1] - The medium-voltage solid-state transformer (SST) series devices, energy management systems, and DC control protection systems have been applied in demonstration projects [1] - In grid-forming technology, the company leverages its deep understanding of grid interactions to propose solutions for various application scenarios, including grid-forming energy storage and grid-forming SVG [1] Recent Achievements - The company has made significant breakthroughs in power quality management, providing a 250 Mvar SVG power quality comprehensive management device for the first million-ton near-zero carbon steel production line at Baosteel's Zhanjiang Steel, marking a revolutionary shift from carbon metallurgy to hydrogen metallurgy in China's steel industry [1] - This project not only showcases the company's leading technological strength in power quality management but also supports steel enterprises in balancing environmental compliance with production efficiency [1] - The integration with hydrogen metallurgy processes creates a replicable and scalable system solution and engineering practice model for the green transformation of large-capacity electric arc furnaces [1]