Research on the Relationship between Speed Control System and Electromechanical Oscillations

Ya Qing Zhu; Min Zhong; Yu Jia Ma; Feng Ping Pan; Ling Ling Shi; Zhi Qiang Pang

doi:10.4028/www.scientific.net/AMM.710.47

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 710Research on the Relationship between Speed Control...

Research on the Relationship between Speed Control System and Electromechanical Oscillations

Abstract:

The system damping of electric power systems is influenced by factors of many aspects. In this paper, we analyzed the impact of speed control system on the damping of the whole system in consideration of the Pole-Zero Analysis. The result shows that simple speed control would damp the oscillation, while the power-frequency control would excite the oscillation. Furthermore, the effect of steam turbine response rate on the system damping is analyzed. The time constant of hydraulic servo-motor would determine the response rate of the steam turbine, and as a result, an inflection point exists on the curve which describes the relationship between hydraulic servo-motor time constant and system damping. The result demonstrates that the characteristics of system damping can be used in parameter debugging of steam turbine.

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Periodical:

Applied Mechanics and Materials (Volume 710)

Pages:

47-52

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.710.47

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Online since:

January 2015

Authors:

Ya Qing Zhu*, Min Zhong, Yu Jia Ma, Feng Ping Pan, Ling Ling Shi, Zhi Qiang Pang

Keywords:

Damping, Electromechanical Oscillations, Response Rate, Speed Control System

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