Ibrahim Mohd Alsofyani and Kyo-Beum Lee, "Predictive Torque Control Based on Discrete Space Vector Modulation of PMSM without Flux Error-Sign and Voltage-Vector Lookup Table," Electronics, vol. 9, no. 9, pp. 1–15, Sep. 2020. -SCIE > Paper

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Paper

International Journals Ibrahim Mohd Alsofyani and Kyo-Beum Lee, "Predictive Torque Control Based on Discrete Space Vector Modulation of PMSM without Flux Error-Sign and Voltage-Vector Lookup Table," Electronics, vol. 9, no. 9, pp. 1–15, Sep. 2020. -SCIE

2020

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The conventional finite set–predictive torque control of permanent magnet synchronous motors (PMSMs) suffers from large flux and

torque ripples, as well as high current harmonic distortions. Introducing the discrete space vector modulation (DSVM) into the

predictive torque control (PTC-DSVM) can improve its steady-state performance; however, the control complexity is further increased

owing to the large voltage–vector lookup table that increases the burden of memory. A simplified PTC-DSVM with 73 synthesized

voltage vectors (VVs) is proposed herein, for further improving the steady-state performance of the PMSM drives with a significantly

lower complexity and without requiring a VV lookup table. The proposed scheme for reducing the computation burden is designed to

select an optimal zone of space vector diagram (SVD) in the utilized DSVM based on the torque demand. Hence, only 10 out of 73

admissible VVs will be initiated online upon the optimal SVD zone selection. Additionally, with the proposed algorithm, no flux error is

required to control the flux demand. The proposed PTC-DSVM exhibits high performance features, such as low complexity with less

memory utilization, reduced torque and flux ripples, and less redundant VVs in the prediction process. The simulation and experimental

results for the 11 kW PMSM drive are presented to prove the effectiveness of the proposed control strategy.

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