# World's First Fully Rated Direct ac/ac MMC for Variable-Speed Pumped-Storage Hydropower Plants

> Research article (IEEE Transactions on Industrial Electronics, 2022) · cited 36× · AI/ML

**Wikidata**: [openalex:W4295832152](https://www.wikidata.org/wiki/openalex:W4295832152)  
**Source**: https://4ort.xyz/entity/world-s-first-fully-rated-direct-ac-ac-mmc-for-variable-speed-pumped-storage-hydropower-plants