대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)
- 대한전기학회 2003년도 하계학술대회 논문집 A
- /
- Pages.119-121
- /
- 2003
발전기 모델링 정도에 의한 고유치 감도계수에 미치는 영향해석
Analysis of the first order eigenvalue sensitivity affected by generator model
- Cho, Eon-Jung (School of Electronic & Information Eng. Kunsan National Univ.) ;
- Lee, Kun-Jae (School of Electronic & Information Eng. Kunsan National Univ.) ;
- Kim, Deok-Young (School of Electronic & Information Eng. Kunsan National Univ.)
- 발행 : 2003.07.21
초록
In small signal stability analysis of power systems, eigenvalue analysis is the most useful method and the detailed modeling of generator gives an important effect to the eigenvalues. Generator full model is used for precise dynamic analysis of generators and controllers while two-axis model is used for multimachine systems because of the reduced order of the state matrix. Also, the eigenvalue sensitivity coefficients are used for optimization of controller parameters to improve system stability. This paper compare the first order eigenvalue sensitivity coefficients of controllers in case of generator full model with those of two-axis model. As a result of an example the estimated eigenvalues using sensitivity coefficients in case of generator full model is very close to those of state matrix within 1% error ratios.
키워드