# Optimal PID Controller Design for Speed Control of a Separately Excited DC Motor: A Firefly Based Optimization Approach

> Research article (International Journal of Soft Computing Mathematics and Control, 2015) · cited 13× · AI/ML

**Wikidata**: [openalex:W4252299006](https://www.wikidata.org/wiki/openalex:W4252299006)  
**Source**: https://4ort.xyz/entity/optimal-pid-controller-design-for-speed-control-of-a-separately-excited-dc-motor-a-firefly-based-optimization-approach