# Frequency frame approach on loop shaping of first order plus time delay systems using fractional order PI controller

> Research article (ISA Transactions, 2018) · cited 30× · AI/ML

**Wikidata**: [openalex:W2899151895](https://www.wikidata.org/wiki/openalex:W2899151895)  
**Source**: https://4ort.xyz/entity/frequency-frame-approach-on-loop-shaping-of-first-order-plus-time-delay-systems-using-fractional-order-pi-controller