en.Wedoany.com Reported - The 220kV Dengfeng Energy Storage Station in Wenshui County, Shanxi Province, China, has recently achieved full-capacity grid connection and power transmission. The project adopts a hybrid technology route combining flywheel energy storage and lithium iron phosphate batteries. Once operational, it will leverage the advantages of "power-type + energy-type" storage to effectively smooth fluctuations in new energy generation, enhance the grid's frequency and peak regulation capabilities, and improve the level of new energy consumption. It is estimated to reduce carbon emissions by over 200,000 tons annually.

The enterprise responsible for the setting calculation of the relay protection devices for the project's electrical equipment passed the review and filing by the Protection Division of the State Grid Shanxi Electric Power Control Center in one go, and received recognition from all participating construction units. This work completed the setting calculation and verification of the entire station's relay protection devices, covering one 220kV main transformer, 35kV busbar protection, 35kV energy storage line protection, 35kV station service transformer protection, 35kV SVG protection, 35kV box-type transformer and its low-voltage side circuit breaker protection, fault recording devices, and anti-islanding protection, among others.

During project implementation, the technical team relied on a solid foundation in relay protection setting calculation, maintained a professional and rigorous attitude, strictly enforced industry regulations, proactively coordinated with all parties, responded quickly to on-site needs, and provided reliable technical support. This facilitated the smooth progress of the project and its grid connection and power transmission, earning praise from the Protection Division of the State Grid Shanxi Electric Power Control Center and all participating construction units.

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