Shaft torque observer and excitation control for turbine-generator torsional oscillation

Tetsuro Kakinoki, Ryuichi Yokoyama, Goro Fujita, Kaoru Koyanagi, T. Toshihisa Funabashi, Kwang Y. Lee

研究成果: Article

9 引用 (Scopus)

抄録

In recent years, gas turbines have been attracting a lot of attention in the field of dispersed generations and co-generation systems. The gas turbine generation system always has the problem of the shaft torsional oscillation, and their counter measures that can apply especially for the in-house generating plants at 10MW scale are required. For technical and financial reasons, the number of sensors has to be reduced to an acceptable minimum, and generally it is not possible to measure the torsional oscillations at all critical shaft locations. Thus the torsional oscillations on the crucial components should be estimated by using the measured rotating speed at turbine shaft end. This paper presents the shaft torque observer and coordinated controllers for the in-house generating plants. In this study the turbine model with 7-mass has been used, and the rate of the in-house generating shaft is 5MVA. Linear quadratic regulat or theory (LQR) is used to design the observer gain, which provides acceptable estimated values. The estimation accuracy of this observer is within 10%, and the influence by the measurement error of the shaft parameter is also a little.

元の言語English
ページ(範囲)248-257
ページ数10
ジャーナルElectric Power Systems Research
68
発行部数3
DOI
出版物ステータスPublished - 2004 3

Fingerprint

Turbogenerators
Gas turbines
Turbines
Torque
Measurement errors
Controllers
Sensors

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

これを引用

Shaft torque observer and excitation control for turbine-generator torsional oscillation. / Kakinoki, Tetsuro; Yokoyama, Ryuichi; Fujita, Goro; Koyanagi, Kaoru; Funabashi, T. Toshihisa; Lee, Kwang Y.

:: Electric Power Systems Research, 巻 68, 番号 3, 03.2004, p. 248-257.

研究成果: Article

Kakinoki, Tetsuro ; Yokoyama, Ryuichi ; Fujita, Goro ; Koyanagi, Kaoru ; Funabashi, T. Toshihisa ; Lee, Kwang Y. / Shaft torque observer and excitation control for turbine-generator torsional oscillation. :: Electric Power Systems Research. 2004 ; 巻 68, 番号 3. pp. 248-257.
@article{6eba9a3be2b2488fb7d0cfb5a6b985a5,
title = "Shaft torque observer and excitation control for turbine-generator torsional oscillation",
abstract = "In recent years, gas turbines have been attracting a lot of attention in the field of dispersed generations and co-generation systems. The gas turbine generation system always has the problem of the shaft torsional oscillation, and their counter measures that can apply especially for the in-house generating plants at 10MW scale are required. For technical and financial reasons, the number of sensors has to be reduced to an acceptable minimum, and generally it is not possible to measure the torsional oscillations at all critical shaft locations. Thus the torsional oscillations on the crucial components should be estimated by using the measured rotating speed at turbine shaft end. This paper presents the shaft torque observer and coordinated controllers for the in-house generating plants. In this study the turbine model with 7-mass has been used, and the rate of the in-house generating shaft is 5MVA. Linear quadratic regulat or theory (LQR) is used to design the observer gain, which provides acceptable estimated values. The estimation accuracy of this observer is within 10{\%}, and the influence by the measurement error of the shaft parameter is also a little.",
keywords = "Observer design, Shaft torque estimation, Torsional oscillation",
author = "Tetsuro Kakinoki and Ryuichi Yokoyama and Goro Fujita and Kaoru Koyanagi and Funabashi, {T. Toshihisa} and Lee, {Kwang Y.}",
year = "2004",
month = "3",
doi = "10.1016/j.epsr.2003.06.007",
language = "English",
volume = "68",
pages = "248--257",
journal = "Electric Power Systems Research",
issn = "0378-7796",
publisher = "Elsevier BV",
number = "3",

}

TY - JOUR

T1 - Shaft torque observer and excitation control for turbine-generator torsional oscillation

AU - Kakinoki, Tetsuro

AU - Yokoyama, Ryuichi

AU - Fujita, Goro

AU - Koyanagi, Kaoru

AU - Funabashi, T. Toshihisa

AU - Lee, Kwang Y.

PY - 2004/3

Y1 - 2004/3

N2 - In recent years, gas turbines have been attracting a lot of attention in the field of dispersed generations and co-generation systems. The gas turbine generation system always has the problem of the shaft torsional oscillation, and their counter measures that can apply especially for the in-house generating plants at 10MW scale are required. For technical and financial reasons, the number of sensors has to be reduced to an acceptable minimum, and generally it is not possible to measure the torsional oscillations at all critical shaft locations. Thus the torsional oscillations on the crucial components should be estimated by using the measured rotating speed at turbine shaft end. This paper presents the shaft torque observer and coordinated controllers for the in-house generating plants. In this study the turbine model with 7-mass has been used, and the rate of the in-house generating shaft is 5MVA. Linear quadratic regulat or theory (LQR) is used to design the observer gain, which provides acceptable estimated values. The estimation accuracy of this observer is within 10%, and the influence by the measurement error of the shaft parameter is also a little.

AB - In recent years, gas turbines have been attracting a lot of attention in the field of dispersed generations and co-generation systems. The gas turbine generation system always has the problem of the shaft torsional oscillation, and their counter measures that can apply especially for the in-house generating plants at 10MW scale are required. For technical and financial reasons, the number of sensors has to be reduced to an acceptable minimum, and generally it is not possible to measure the torsional oscillations at all critical shaft locations. Thus the torsional oscillations on the crucial components should be estimated by using the measured rotating speed at turbine shaft end. This paper presents the shaft torque observer and coordinated controllers for the in-house generating plants. In this study the turbine model with 7-mass has been used, and the rate of the in-house generating shaft is 5MVA. Linear quadratic regulat or theory (LQR) is used to design the observer gain, which provides acceptable estimated values. The estimation accuracy of this observer is within 10%, and the influence by the measurement error of the shaft parameter is also a little.

KW - Observer design

KW - Shaft torque estimation

KW - Torsional oscillation

UR - http://www.scopus.com/inward/record.url?scp=0345306189&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0345306189&partnerID=8YFLogxK

U2 - 10.1016/j.epsr.2003.06.007

DO - 10.1016/j.epsr.2003.06.007

M3 - Article

AN - SCOPUS:0345306189

VL - 68

SP - 248

EP - 257

JO - Electric Power Systems Research

JF - Electric Power Systems Research

SN - 0378-7796

IS - 3

ER -