# Grid synchronization of variable speed pump-turbine units in turbine mode

> Research article (Renewable Energy, 2021) · cited 39× · AI/ML

**Wikidata**: [openalex:W3153365416](https://www.wikidata.org/wiki/openalex:W3153365416)  
**Source**: https://4ort.xyz/entity/grid-synchronization-of-variable-speed-pump-turbine-units-in-turbine-mode