System-response-based eigenvalue estimation for on-line assessment of power system stability

H. Hiraiwa; Hiromi Saito; E. Tsukada; K. Minazawa; J. Toyoda

System-response-based eigenvalue estimation for on-line assessment of power system stability

H. Hiraiwa, Hiromi Saito, E. Tsukada, K. Minazawa, J. Toyoda

ENG - Electrical Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

1 Citation (Scopus)

Abstract

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.

Original language	English
Title of host publication	Proceedings of the 2004 IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies (DRPT2004)
Pages	366-371
Number of pages	6
Publication status	Published - 2004 Nov 25
Event	Proceedings of the 2004 IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies (DRPT2004) - Hong Kong, China Duration: 2004 Apr 5 → 2004 Apr 8

Publication series

Name	Proceedings of the 2004 IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies (DRPT2004)
Volume	1

Other

Other	Proceedings of the 2004 IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies (DRPT2004)
Country	China
City	Hong Kong
Period	04/4/5 → 04/4/8

Keywords

Eigenvalue
Global Positioning System
Modal analysis
Synchronized measurement
System identification

ASJC Scopus subject areas

Engineering(all)

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Cite this

Hiraiwa, H., Saito, H., Tsukada, E., Minazawa, K., & Toyoda, J. (2004). System-response-based eigenvalue estimation for on-line assessment of power system stability. In Proceedings of the 2004 IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies (DRPT2004) (pp. 366-371). (Proceedings of the 2004 IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies (DRPT2004); Vol. 1).

System-response-based eigenvalue estimation for on-line assessment of power system stability. / Hiraiwa, H.; Saito, Hiromi; Tsukada, E.; Minazawa, K.; Toyoda, J.

Proceedings of the 2004 IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies (DRPT2004). 2004. p. 366-371 (Proceedings of the 2004 IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies (DRPT2004); Vol. 1).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Hiraiwa, H, Saito, H, Tsukada, E, Minazawa, K & Toyoda, J 2004, System-response-based eigenvalue estimation for on-line assessment of power system stability. in Proceedings of the 2004 IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies (DRPT2004). Proceedings of the 2004 IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies (DRPT2004), vol. 1, pp. 366-371, Proceedings of the 2004 IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies (DRPT2004), Hong Kong, China, 04/4/5.

Hiraiwa H, Saito H, Tsukada E, Minazawa K, Toyoda J. System-response-based eigenvalue estimation for on-line assessment of power system stability. In Proceedings of the 2004 IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies (DRPT2004). 2004. p. 366-371. (Proceedings of the 2004 IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies (DRPT2004)).

Hiraiwa, H. ; Saito, Hiromi ; Tsukada, E. ; Minazawa, K. ; Toyoda, J. / System-response-based eigenvalue estimation for on-line assessment of power system stability. Proceedings of the 2004 IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies (DRPT2004). 2004. pp. 366-371 (Proceedings of the 2004 IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies (DRPT2004)).

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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.

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