Performance Comparison Between Two-Level and Three-Level SiC-Based VFD Applications with Output Filters

Baek, Seunghoon; Cho, Younghoon; Cho, Byung-Geuk; Hong, Cheng

doi:10.1109/ecce.2018.8557507

Cited by 3 publications

(1 citation statement)

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“…In [12][13][14][15][16] superior performances of a three-level inverter over two-level topology at higher switching frequency are presented. However, so far this is not widely emphasized in the EV applications with the power loss studies, drive torque-speed profile along with stator harmonic content, and torque ripple analysis.…”

Section: Introductionmentioning

confidence: 99%

A Study on Performance Parameters of Three-Level T-type Inverter based PMSM Drives for Electric Vehicles Applications

Roy,

Banerjee

2022

Preprint

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In this paper a comparative analysis is conducted to analyse the performances of two-level conventional and three-level diode clamped voltage source inverter-based drives. Carrier-based space vector modulation technique is employed in both three-level & two-level voltage source inverter (2L-VSI) inverter-based drives. Comparative study for 2L-VSI, three-level neutral-point-clamped (3L-NPC) and three-level T-type neutral-point-clamped (3L-TNPC) inverters are performed in view of conduction & switching losses and harmonic profile. Also presented in this work the dynamic response of field-oriented control (FOC) controlled permanent magnet synchronous motor (PMSM) drive under varying load conditions towards EV applications. Rapid changes in speed and loading in Electric vehicle (EV) traction drives lead to sharp fluctuations in modulation depth and power factor (PF). With variation of modulation index and power factor, power loss of all the three inverters are analysed. Also, in the present work control logics are simulated in MATLAB to observe various speed-torque combinations of 54 kW PMSM drive. Additionally, inverters power losses are developed in PLECS environment. By using a scaled-down prototype of 5 hp PMSM drive, the results are carried out for hardware validation.

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