Analysis of harmonic transfer in an a.c. excited generator including speed ripple

Liao, Yong, Xiang, D., Ran, Li and Putrus, Ghanim (2002) Analysis of harmonic transfer in an a.c. excited generator including speed ripple. In: IECON 02 - 28th Annual Conference of the IEEE Industrial Electronics Society, 5th - 8th November 2002, Sevilla, Spain.

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Official URL: http://dx.doi.org/10.1109/IECON.2002.1185437

Abstract

A.c. excited generators are favoured in some applications due to their features including generation at a constant frequency but a variable speed. With the rotor windings supplied from a static power electronic converter, harmonics are one of the major concerns in such systems. Based on a mathematical model of the a.c. excited machine, a method is developed to analyze the system or stator side harmonics as transferred from the rotor side. The effect of the rotor speed ripple, which can be caused by pulsating torque at low frequencies, is investigated. It is shown that the rotor speed ripple will modify the spectrum of stator current. Experimental tests and simulations are used to illustrate the phenomenon and verify the analysis.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: A.C. excited generator; Harmonic analysis; Modulation; Pulsating torque; Spectrum
Subjects: H600 Electronic and Electrical Engineering
Department: Faculties > Engineering and Environment > Mathematics, Physics and Electrical Engineering
Depositing User: Becky Skoyles
Date Deposited: 05 Feb 2015 16:58
Last Modified: 24 Oct 2017 08:55
URI: http://nrl.northumbria.ac.uk/id/eprint/19431

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