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 -