Induction Motor Drive THD Improvement with Multi-Level Inverter

Abstract:

Multi-level voltage source inverters offer several advantages such as a better output voltage with reduced total harmonic distortion (THD), reduction of voltage ratings of the power semiconductor switching devices and also the reduced electro-magnetic interference problems etc. This paper presents the application of Fast space vector pulse width modulation (SVPWM) method for multi-level diode clamped inverter feeding a three-phase Induction motor. The algorithm is independent of the number of inverter levels. In this the three vectors nearest to the reference vector are identified and their corresponding duty cycles are found. These values remain same regardless of number of inverter levels and the location of reference vector.

• Periodical: Advanced Materials Research (Volumes 403-408)
• Pages: 5045-5052
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.403-408.5045
• Online since: November 2011
• Authors: G. Durgasukumar, M.K. Pathak
• Keywords: Five-Level Inverter, Induction Motor (IM), Multi-Level Inverter, Seven-Level Inverter, Space Vector Modulation (SVM), Three-Level Inverter, Total Harmonic Distortion (THD), Two-Level Inverter

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