Simulation and Optimization of a Three-Level Inverter Driven Induction Motor System

DOI

10.2991/978-94-6463-986-5_78How to use a DOI?

Keywords

Space Vector Pulse Width Modulation (SVPWM); Silicon Carbide (SiC) Power Devices; Capacitor Voltage Balance; Three-Level Inverter; Zero-Voltage Switching (ZVS)

Abstract

In high-performance induction motor applications, multilevel inverters have demonstrated the capability to deliver cleaner voltage waveforms than conventional topologies. Nevertheless, their implementation can be hampered by issues such as circuit complexity, neutral-point voltage imbalance, and substantial switching losses. This work develops a unified optimization framework that merges an improved Space Vector Pulse Width Modulation (SVPWM) technique, a resonant soft-switching stage, and silicon carbide (SiC) power devices. Within this approach, capacitor voltage balance is actively regulated using a strategy derived from the d–q model of a neutral-point-clamped (NPC) three-level inverter coupled to an induction motor. Soft switching is enabled via an auxiliary resonant circuit to achieve Zero-Voltage Switching (ZVS), while SiC devices help to lower both switching and conduction losses. Simulation results reveal that the proposed scheme achieves a total harmonic distortion (THD) below 3.5%, a load-disturbance recovery time of 0.12 s, torque ripple under 5%, and a 28% decrease in switching losses, which improves efficiency from 93.2% to 96.1%. Voltage deviation across capacitors remains within ±4%, confirming the reliability and potential industrial relevance of this design.

Copyright

© 2026 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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TY  - CONF
AU  - Weijie Chu
AU  - Siyu Yu
PY  - 2026
DA  - 2026/02/18
TI  - Simulation and Optimization of a Three-Level Inverter Driven Induction Motor System
BT  - Proceedings of the 2025 International Conference on Electronics, Electrical and Grid Technology (ICEEGT 2025)
PB  - Atlantis Press
SP  - 763
EP  - 774
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6463-986-5_78
DO  - 10.2991/978-94-6463-986-5_78
ID  - Chu2026
ER  -