NDLI: Minimising power losses and torque ripples of permanent-magnet synchronous motor by parallel execution of a two-stage predictive control system

Content Provider	IET Digital Library
Author	Vafaie, Mohammad Hossein Dehkordi, Behzad Mirzaeian
Abstract	In this study, an advanced predictive control system is proposed which consists of two cascade predictive controllers; the first one minimises the power losses while the second one minimises the torque ripple. In the first controller, motor losses are formulated as a function of stator-flux linkage components. Then, the optimal stator-flux linkage vector which causes the minimum losses is found by adopting fast-iterative shrinkage thresholding algorithm (FISTA). The second controller is a predictive direct torque controller adopted to control the stator-flux linkage and torque directly. In this controller, torque ripple is formulated as a function of the stator-voltage vector. Then, the optimal voltage vector which causes the minimum torque ripple is found by adopting FISTA. In the second controller, deadbeat control of the stator-flux linkage is considered as a constraint in minimisation of torque ripple. To assess the effectiveness of the proposed control system, performance of the motor is assessed through various experimental tests, where the results confirm that the proposed control system minimises the power losses and torque ripple, simultaneously. The comparative assessment with the recent predictive controllers indicates that the proposed control system has higher efficiency as well as lower torque ripples in all operating points.
Starting Page	3590
Ending Page	3600
Page Count	11
ISSN	17554535
Volume Number	13
e-ISSN	17554543
Issue Number	Issue 16, Dec (2020)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-pel/13/16
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-pel.2020.0583
Journal	IET Power Electronics
Publisher Date	2020-08-12
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Cascade Predictive Controller Control of Electric Power System Current Control Deadbeat Control Drive Electric Current Control Interpolation And Function Approximation Iterative Method Machine Control Mechanical Variables Control Minimum Torque Ripple Numerical Analysis Optimal Control Optimal Stator-flux Linkage Vector Optimisation Technique Permanent-magnet Synchronous Motor Predictive Control Predictive Direct Torque Controller Stator-flux Linkage Component Stator-voltage Vector Synchronous Machine Synchronous Motor Drive Synchronous Motors Torque Control Torque Ripple Two-stage Predictive Control System
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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