# State-of-the-Art Frequency Control Strategy Based on an Optimal Fuzzy PI-FOPDF<sup>λ</sup> for SMES and UPFC Integrated Smart Grids Using Zebra Optimization Algorithm

> Research article (IEEE Access, 2023) · cited 17× · AI/ML

**Wikidata**: [openalex:W4388052743](https://www.wikidata.org/wiki/openalex:W4388052743)  
**Source**: https://4ort.xyz/entity/state-of-the-art-frequency-control-strategy-based-on-an-optimal-fuzzy-pi-fopdf-sup-sup-for-smes-and-upfc-integrated-smar