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Recently, the China Electricity Council announced the winners of the 2026 Electric Power Innovation Award. The technical achievement "Key Technologies and Equipment for Comprehensive Governance of Wide-Band Oscillation in New Energy Stations with Highly Efficient Synergy of Grid-Forming and Grid-Following," spearheaded by Sieyuan Qingneng, was awarded the First Prize for innovative technical achievements of the year.
The project aims to tackle the wide-band oscillation challenge in power grid systems with a high penetration of new energy. Based on the analysis of the oscillation stability mechanisms of grid-following and grid-forming units, Sieyuan proposed an integrated synchronization control strategy. In terms of the technical path, the project verified the effectiveness of core technologies including the optimized configuration for multi-infeed stations, high-efficiency calculation of wide-band oscillation, adaptive coordinated control, and the double-star MMC integrated architecture. This enables the synergistic operation of active power support and impedance reshaping at the station level.
Currently, the relevant technical solutions have accomplished field solution verifications in dozens of projects, including the Datang Group Tianliquan Wind Farm. The application effectively suppresses wide-band oscillation in the power grid under complex operating conditions, significantly reducing the grid disconnection risk associated with the large-scale grid connection of new energy in weak grid environments, and provides a replicable technical reference for the development of new power systems.
Learn more: Grid-Forming STATCOM
