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Harmonic Analysis of DC-Link Capacitor Current in Sinusoidally Modulated Neutral-Point-Clamped Inverter

Gopalakrishnan, KS and Narayanan, G (2013) Harmonic Analysis of DC-Link Capacitor Current in Sinusoidally Modulated Neutral-Point-Clamped Inverter. In: National Power Electronics Conference, 2013, 20-22 December, 2013, IIT Kanpur, Kanpur, India.

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Official URL: http://brihsvn.iitk.ernet.in/NPEC13/

Abstract

The voltage ripple and power loss in the DC-capacitor of a voltage source inverter depend on the harmonic currents flowing through the capacitor. This paper presents double Fourier series based harmonic analysis of DC capacitor current in a three-level neutral point clamped inverter, modulated with sine-triangle PWM. The analytical results are validated experimentally on a 5-kVA three-level inverter prototype. The results of the analysis are used for predicting the power loss in the DC capacitor.

Item Type: Conference Paper
Additional Information: Copyright for this article belongs to the IIT Kanpur
Keywords: Capacitor current;capacitor loss;diode-clamped inverter;double Fourier series;harmonic analysis;neutral-pointclamped inverter, three-level inverter.
Department/Centre: Division of Electrical Sciences > Electrical Engineering
Depositing User: review EPrints Reviewer
Date Deposited: 05 Jan 2014 04:54
Last Modified: 05 Jan 2014 04:54
URI: http://eprints.iisc.ac.in/id/eprint/48162

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