Salah G. Abokhatwa 2026. Guarded Two-Time-Scale UKF and Adaptive NMPC for Voltage-Disturbance Rejection in PMSM Drives. African Journal of Advanced Pure and Applied Sciences . 5, 3 (Sep. 2026), 432–447. DOI:https://doi.org/10.65418/ajapas.v5i3.2184.