wsdl(SH:600995) Huan Qiu Wang Zi Xun·2026-02-12 01:45Core Viewpoint - The successful integration of the first domestically produced voltage-source static frequency converter (SFC) at the Nanning pumped storage power station marks a significant advancement in China's independent research and development of new pumped storage technology, enhancing the safety of the energy storage supply chain and promoting the construction of a new power system [1][4]. Group 1: Technological Advancements - The new voltage-source SFC significantly reduces harmonic distortion in output current, achieving a total harmonic distortion rate of only 0.9%, well below the design requirement of 3% [6]. - The acceleration performance of the new SFC improves by over 35% compared to the previous current-source SFC, enhancing the ability to accelerate the motor from a standstill to rated speed [6]. Group 2: Industry Context and Future Prospects - With the rapid development of renewable energy in China, the demand for high-performance control devices in pumped storage systems is increasing, necessitating advancements in technology [4]. - The long-term development plan for pumped storage in China includes over 580 key and reserve projects, with a total capacity exceeding 720 million kilowatts, indicating a broad market for the new SFC [7]. - The company plans to accelerate the pilot application of the new SFC in more pumped storage units and expand its application in areas such as energy storage, phase adjustment, and gas turbines, promoting deeper integration of technological and industrial innovation [7].