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

Yong Liao; D. Xiang; Li Ran; Ghanim Putrus

doi:10.1109/IECON.2002.1185437

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

Yong Liao, D. Xiang, Li Ran, Ghanim Putrus

Mathematics, Physics and Electrical Engineering

Research output: Contribution to conference › Paper › peer-review

6 Citations (Scopus)

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.

Original language	English
DOIs	https://doi.org/10.1109/IECON.2002.1185437
Publication status	Published - Nov 2002
Event	IECON 02 - 28th Annual Conference of the IEEE Industrial Electronics Society - Sevilla, Spain Duration: 1 Nov 2002 → …

Conference

Conference	IECON 02 - 28th Annual Conference of the IEEE Industrial Electronics Society
Period	1/11/02 → …

Keywords

A.C. excited generator
Harmonic analysis
Modulation
Pulsating torque
Spectrum

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10.1109/IECON.2002.1185437

Cite this

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title = "Analysis of harmonic transfer in an a.c. excited generator including speed ripple",

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.",

keywords = "A.C. excited generator, Harmonic analysis, Modulation, Pulsating torque, Spectrum",

author = "Yong Liao and D. Xiang and Li Ran and Ghanim Putrus",

year = "2002",

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doi = "10.1109/IECON.2002.1185437",

language = "English",

note = "IECON 02 - 28th Annual Conference of the IEEE Industrial Electronics Society ; Conference date: 01-11-2002",

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TY - CONF

T1 - Analysis of harmonic transfer in an a.c. excited generator including speed ripple

AU - Liao, Yong

AU - Xiang, D.

AU - Ran, Li

AU - Putrus, Ghanim

PY - 2002/11

Y1 - 2002/11

N2 - 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.

AB - 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.

KW - A.C. excited generator

KW - Harmonic analysis

KW - Modulation

KW - Pulsating torque

KW - Spectrum

U2 - 10.1109/IECON.2002.1185437

DO - 10.1109/IECON.2002.1185437

M3 - Paper

T2 - IECON 02 - 28th Annual Conference of the IEEE Industrial Electronics Society

Y2 - 1 November 2002

ER -

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

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Keywords

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