TY - GEN
T1 - System-response-based eigenvalue estimation for on-line assessment of power system stability
AU - Hiraiwa, H.
AU - Saito, Hiromi
AU - Tsukada, E.
AU - Minazawa, K.
AU - Toyoda, J.
PY - 2004/11/25
Y1 - 2004/11/25
N2 - This paper proposes a new method for modal analysis of large power systems that is based on synchronously measured system responses. The method can identify the eigenvalues corresponding to weakly damped electromechanical modes by analyzing the covariance matrix among rotor angles and speeds of generators. By the method, a power system is identified as a multi-input multi-output linear system, so that the characteristics of several modes can be analyzed simultaneously. In addition, the method to select a small number of generators for estimating slow oscillatory modes is discussed, and which is based on the application of coherencies of generators. The effectiveness of the new modal analysis is confirmed through the simulation studies of the IEEJ East10 machine model.
AB - This paper proposes a new method for modal analysis of large power systems that is based on synchronously measured system responses. The method can identify the eigenvalues corresponding to weakly damped electromechanical modes by analyzing the covariance matrix among rotor angles and speeds of generators. By the method, a power system is identified as a multi-input multi-output linear system, so that the characteristics of several modes can be analyzed simultaneously. In addition, the method to select a small number of generators for estimating slow oscillatory modes is discussed, and which is based on the application of coherencies of generators. The effectiveness of the new modal analysis is confirmed through the simulation studies of the IEEJ East10 machine model.
KW - Eigenvalue
KW - Global Positioning System
KW - Modal analysis
KW - Synchronized measurement
KW - System identification
UR - http://www.scopus.com/inward/record.url?scp=8644221507&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=8644221507&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:8644221507
SN - 0780382374
T3 - Proceedings of the 2004 IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies (DRPT2004)
SP - 366
EP - 371
BT - Proceedings of the 2004 IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies (DRPT2004)
T2 - Proceedings of the 2004 IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies (DRPT2004)
Y2 - 5 April 2004 through 8 April 2004
ER -