# Improved PID controller design for an unstable second order plus time delay non-minimum phase systems

> Research article (Results in Control and Optimization, 2022) · cited 20× · AI/ML

**Wikidata**: [openalex:W4220668768](https://www.wikidata.org/wiki/openalex:W4220668768)  
**Source**: https://4ort.xyz/entity/improved-pid-controller-design-for-an-unstable-second-order-plus-time-delay-non-minimum-phase-systems