Delay Compensation Based on Current Deviation in FCS-MPCC for Reduced THD and Torque Ripple in Surface-Mounted PMSM Drives
Year: 2026
Type: article
Abstract: This paper proposes a delay-aware Finite Control Set Model Predictive Current Control (FCS-MPCC) for surface-mounted Permanent Magnet Synchronous Motor (PMSM) drives. The computation and actuation latency cause the measured current used for prediction to deviate from the actual regulated current at the switching moment, thereby impairing voltage-vector selection and elevating harmonics. To resolve this issue, the delay time is assessed, and the current deviation is reconstructed using the discrete PMSM model. The reconstructed current is then utilized as the initial state for prediction in each sampling interval. Comparative simulations of a 1.5 kW two-level inverter-fed PMSM drive demonstrate that the proposed method decreases stator-current THD from 14.2% (SS-MPCC) and 9.9% (DS-MPCC) to 7.3%. It also reduces torque ripple from 6.5 Nm and 4.4 Nm to 2.4 Nm, respectively, while enhancing transient and speed-reversal performance.
DOI: 10.48084/etasr.17634
Authors: Thanh Quy Bach, Nhi Van Thi Kieu, Dai Le Van
Institution: Industrial University of Ho Chi Minh City
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $431
OpenAlex ID: W7149928207