# Characteristics Analysis and Fuzzy Fractional-Order PID Parameter Optimization for Primary Frequency Modulation of a Pumped Storage Unit Based on a Multi-Objective Gravitational Search Algorithm

> Research article (Energies, 2019) · cited 31× · AI/ML

**Wikidata**: [openalex:W2997657484](https://www.wikidata.org/wiki/openalex:W2997657484)  
**Source**: https://4ort.xyz/entity/characteristics-analysis-and-fuzzy-fractional-order-pid-parameter-optimization-for-primary-frequency-modulation-of-a-pum