Performance Analysis of CB-SVM Three-Phase Five-Level DCMLI Fed PMSM Drive
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Abstract
Multilevel inverter (MLI) topology is popular in recent years in automobiles of low and high capacity. Compared to conventional inverters, such technology provides quality performance. Permanent magnet synchronous (PMS) motors are more prevalent in the constant speed and torque control of the electric motor drive. The main features of PMSM involve high energy density, improved time to current ratios, increased effectiveness, and smooth control. Field-oriented field control (FOC) can be used to improve the drive performance of PMSM over conventional two-level VSI by using the three-phase multi-level diode inverter (DCMLI). A 3-phase 5-level DCMLI driven PMSM drive is simulated and evaluated by PSIM software. This article describes an approach of space vector modulation based on the inverter-driven PMSM drive at 2 and 3 levels (CB-SVM). Five-level DCMLI performance comparison of a 2-level PMSM drive is carried out and verified with simulated results utilizing CB-SVM. CB-SVM signals are provided for inverter operation. The comparison is based on PMSM drive features to inverter output current and voltage response. Better constant speed and fewer torque ripples were shown by the simulation analysis.
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