# Harmonics detection via input observer with grid frequency fluctuation

> Research article (International Journal of Electrical Power & Energy Systems, 2019) · cited 13× · AI/ML

**Wikidata**: [openalex:W2969054720](https://www.wikidata.org/wiki/openalex:W2969054720)  
**Source**: https://4ort.xyz/entity/harmonics-detection-via-input-observer-with-grid-frequency-fluctuation