Torsional vibration characteristic study of the grid-connected DFIG wind turbine

Songtao Yu, Da Xie, Wangping Wu, Chenghong Gu, Furong Li

Research output: Contribution to journalArticle

Abstract

This paper studies the torsional vibration characteristics of the grid-connected doubly-fed induction generator (DFIG) wind turbine by small signal analysis method. Firstly a detailed small-signal stability union model of the grid-connected DFIG wind turbine is developed, including the mechanical system and electrical system. To study the dynamic characteristic of the blade, gearbox, low speed and high speed shafts, a three mass shaft model for the mechanical system is adopted. At the same time, small signal models of DFIG, the voltage source converter (VSC) and the transmission line of the electrical system are developed respectively. Then, through calculating the eigenvalues of the state matrix A and the corresponding participation factors, the modal analysis is conducted in the shaft torsional vibration issues. And the impact of the system parameters including the series compensation capacitor, the flat-wave reactor, the PI parameters, especially the speed controller of generator rotor on shaft torsional vibration are discussed. The results show that the speed controller strengthens association between the mechanical system and the electrical system, and also produces a low-frequency oscillation mode.

Original languageEnglish
Article number012022
Journal IOP Conference Series: Earth and Environmental Science
Volume52
Issue number1
DOIs
Publication statusPublished - 13 Feb 2017

Fingerprint

wind turbine
shaft
vibration
eigenvalue
oscillation
matrix
speed
analysis
parameter

Cite this

Torsional vibration characteristic study of the grid-connected DFIG wind turbine. / Yu, Songtao; Xie, Da; Wu, Wangping; Gu, Chenghong; Li, Furong.

In: IOP Conference Series: Earth and Environmental Science, Vol. 52, No. 1, 012022, 13.02.2017.

Research output: Contribution to journalArticle

@article{de63223664204675abbc7dbcdb6acf9d,
title = "Torsional vibration characteristic study of the grid-connected DFIG wind turbine",
abstract = "This paper studies the torsional vibration characteristics of the grid-connected doubly-fed induction generator (DFIG) wind turbine by small signal analysis method. Firstly a detailed small-signal stability union model of the grid-connected DFIG wind turbine is developed, including the mechanical system and electrical system. To study the dynamic characteristic of the blade, gearbox, low speed and high speed shafts, a three mass shaft model for the mechanical system is adopted. At the same time, small signal models of DFIG, the voltage source converter (VSC) and the transmission line of the electrical system are developed respectively. Then, through calculating the eigenvalues of the state matrix A and the corresponding participation factors, the modal analysis is conducted in the shaft torsional vibration issues. And the impact of the system parameters including the series compensation capacitor, the flat-wave reactor, the PI parameters, especially the speed controller of generator rotor on shaft torsional vibration are discussed. The results show that the speed controller strengthens association between the mechanical system and the electrical system, and also produces a low-frequency oscillation mode.",
author = "Songtao Yu and Da Xie and Wangping Wu and Chenghong Gu and Furong Li",
year = "2017",
month = "2",
day = "13",
doi = "10.1088/1742-6596/52/1/012022",
language = "English",
volume = "52",
journal = "IOP Conference Series: Earth and Environmental Science",
issn = "1755-1307",
publisher = "IOP Publishing",
number = "1",

}

TY - JOUR

T1 - Torsional vibration characteristic study of the grid-connected DFIG wind turbine

AU - Yu, Songtao

AU - Xie, Da

AU - Wu, Wangping

AU - Gu, Chenghong

AU - Li, Furong

PY - 2017/2/13

Y1 - 2017/2/13

N2 - This paper studies the torsional vibration characteristics of the grid-connected doubly-fed induction generator (DFIG) wind turbine by small signal analysis method. Firstly a detailed small-signal stability union model of the grid-connected DFIG wind turbine is developed, including the mechanical system and electrical system. To study the dynamic characteristic of the blade, gearbox, low speed and high speed shafts, a three mass shaft model for the mechanical system is adopted. At the same time, small signal models of DFIG, the voltage source converter (VSC) and the transmission line of the electrical system are developed respectively. Then, through calculating the eigenvalues of the state matrix A and the corresponding participation factors, the modal analysis is conducted in the shaft torsional vibration issues. And the impact of the system parameters including the series compensation capacitor, the flat-wave reactor, the PI parameters, especially the speed controller of generator rotor on shaft torsional vibration are discussed. The results show that the speed controller strengthens association between the mechanical system and the electrical system, and also produces a low-frequency oscillation mode.

AB - This paper studies the torsional vibration characteristics of the grid-connected doubly-fed induction generator (DFIG) wind turbine by small signal analysis method. Firstly a detailed small-signal stability union model of the grid-connected DFIG wind turbine is developed, including the mechanical system and electrical system. To study the dynamic characteristic of the blade, gearbox, low speed and high speed shafts, a three mass shaft model for the mechanical system is adopted. At the same time, small signal models of DFIG, the voltage source converter (VSC) and the transmission line of the electrical system are developed respectively. Then, through calculating the eigenvalues of the state matrix A and the corresponding participation factors, the modal analysis is conducted in the shaft torsional vibration issues. And the impact of the system parameters including the series compensation capacitor, the flat-wave reactor, the PI parameters, especially the speed controller of generator rotor on shaft torsional vibration are discussed. The results show that the speed controller strengthens association between the mechanical system and the electrical system, and also produces a low-frequency oscillation mode.

UR - http://www.scopus.com/inward/record.url?scp=85014593358&partnerID=8YFLogxK

UR - http://dx.doi.org/10.1088/1742-6596/52/1/012022

U2 - 10.1088/1742-6596/52/1/012022

DO - 10.1088/1742-6596/52/1/012022

M3 - Article

AN - SCOPUS:85014593358

VL - 52

JO - IOP Conference Series: Earth and Environmental Science

JF - IOP Conference Series: Earth and Environmental Science

SN - 1755-1307

IS - 1

M1 - 012022

ER -