Carrier Based Common Mode Voltage Reduction Techniques in Neutral Point Clamped Inverter Based AC-DC-AC Drive System

Amit Ojha; Pradyumn Chaturvedi; Arvind Mittal; Shailendra Jain

Carrier Based Common Mode Voltage Reduction Techniques in Neutral Point Clamped Inverter Based AC-DC-AC Drive System

Vol. 16, No. 1, pp. 142-152, Jan. 2016

10.6113/JPE.2016.16.1.142

AC-DC-AC Drives

Common Mode Voltage Control

Neutral Point Clamped Inverter

Switching Converters

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Abstract

Common mode voltage (CMV) generation is a major problem in switching power converter fed induction motor drive systems. CMV is the zero sequence voltage generated due to the switching action of power converters. Even a small magnitude of CMV with a high rate of change may circulate large bearing currents which may damage a machine’s bearings and shorten its life. There are several methods of controlling CMV. This paper presents 3-level sinusoidal pulse width modulation based techniques to control the magnitude and rate of change of CMV in multilevel AC-DC-AC drive systems. Simulation and experimental investigations have been presented to validate the performance of proposed technique to control CMV in 3-level neutral point clamped inverter based AC-DC-AC system.

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Cite this article

[IEEE Style]

A. Ojha, P. Chaturvedi, A. Mittal, S. Jain, "Carrier Based Common Mode Voltage Reduction Techniques in Neutral Point Clamped Inverter Based AC-DC-AC Drive System," Journal of Power Electronics, vol. 16, no. 1, pp. 142-152, 2016. DOI: 10.6113/JPE.2016.16.1.142.

[ACM Style]

Amit Ojha, Pradyumn Chaturvedi, Arvind Mittal, and Shailendra Jain. 2016. Carrier Based Common Mode Voltage Reduction Techniques in Neutral Point Clamped Inverter Based AC-DC-AC Drive System. Journal of Power Electronics, 16, 1, (2016), 142-152. DOI: 10.6113/JPE.2016.16.1.142.