Recently, the National Energy Administration announced the fourth batch of the first major technical equipment in the energy field, among which the "independent controllable dry capacitor for flexible DC converter valve based on domestic polypropylene granules" participated by SUN.KING Technology member - Jiashan Sunking Power Electronic Capacitor Co., Ltd. was successfully selected. This selection is not only an affirmation of SUN.KING Technology in technology research and development and product innovation, but also a high recognition of its outstanding contribution to promoting the localization of energy equipment.

List of the first major technical equipment in the fourth batch of energy field (partial)

DC link capacitor is one of the core components in the converter valve of flexible DC transmission project, but it is a technical problem that needs to be solved in China, and it has been completely dependent on imports for a long time. The key technology and core components are controlled by others, which seriously restricts the technical research and development and engineering construction of flexible DC transmission in my country, and seriously threatens the smooth implementation of my country's energy strategy.

SUN.KING Technology was ordered to act in times of crisis. After years of in-depth research, the DC link capacitor independently developed by it in January 2024 successfully passed the new product technical appraisal organized by the China Machinery Industry Federation, successfully breaking this technical difficulty. It has now been successfully applied to Zhangbei DC project, Suizhou distribution network project, Hangzhou low-frequency power transmission project, Zhoushan flexible direct current project, Rudong offshore wind power project, Shenzhen Pengcheng STACOM and many other large-capacity SVG projects, and has achieved 100% import substitution of DC link capacitor in many projects such as "Sichuan SVG Network Construction Project" and "Huaneng Yuhuan No. 2 Offshore Wind Power Project 220 kV Transmission Project".

Flexible DC transmission is the focus of China's energy strategic development and power grid construction. It has broad application prospects in the fields of clean energy power transmission, offshore wind power grid connection, and DC power grid construction. Looking ahead to the 14th Five-Year Plan period, more than ten UHV flexible DC transmission projects are expected to be built in China, and there is also huge potential demand in foreign markets. As a leading enterprise in the DC link capacitor industry, SUN.KING Technology will ride the wind of the times and embark on a road of rapid development.