# A Two-Degree-of-Freedom Structure-Based Backstepping Observer for DC Error Suppression in Sensorless PMSM Drives

> Research article (IEEE Transactions on Industrial Electronics, 2021) · cited 31× · AI/ML

**Wikidata**: [openalex:W3212248847](https://www.wikidata.org/wiki/openalex:W3212248847)  
**Source**: https://4ort.xyz/entity/a-two-degree-of-freedom-structure-based-backstepping-observer-for-dc-error-suppression-in-sensorless-pmsm-drives