Open AccessModel predictive combined vector and direct torque control of SM‐PMSM with MTPA and constant stator flux magnitude analysis in the stator flux reference frame
Author(s) -
Heidari Reza
Publication year - 2020
Publication title -
iet electric power applications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.815
H-Index - 97
eISSN - 1751-8679
pISSN - 1751-8660
DOI - 10.1049/iet-epa.2019.1042
Subject(s) - direct torque control , control theory (sociology) , stator , vector control , torque , torque ripple , reference frame , flux (metallurgy) , stationary reference frame , computer science , engineering , physics , frame (networking) , induction motor , materials science , voltage , control (management) , electrical engineering , mechanical engineering , artificial intelligence , metallurgy , thermodynamics
This study presents a combined vector and direct torque control (CVDTC) for surface‐mounted permanent magnet synchronous motor (SM‐PMSM). The CVDTC method has a fast dynamic torque response without requiring any conventional PWM signal‐generators. Besides, it provides low‐speed control and standstill operation, torque and flux ripple reduction, minor switching frequency variations, and low computational burden. In this study, CVDTC is mathematically analysed in the stator flux reference frame and then both DTC and CVDTC are simulated and compared for SM‐PMSMs. To further reduce torque and flux ripple, model predictive combined vector and direct torque control (MPCVDTC) with the finite control set is analysed and proposed in the stator flux reference frame. Moreover, maximum torque per ampere (MTPA) and constant stator flux magnitude analysis for SM‐PMSM are explored in the stator flux reference frame. Simulation and experimental results substantiate the effectiveness and performance of the CVDTC and MPCVDTC methods over a vast speed range.