Abstract
In order to analyze the impact mechanism of the valve flow characteristic on power oscillation, flow characteristics deviation of the steam turbine control valve is firstly analyzed and a coefficient for the deviation assessment is proposed; then, the model of generating unit coupled with dynamic system and electrical system is established according to the characteristics of deviation coefficient, with which the valve flow characteristics deviation is considered. Effect of flow deviation on power oscillation is analyzed by time-domain simulation. The simulation results show that the poor partial flow characteristics of the turbine valves are likely to cause power fluctuations and both the amplitude and the speed of oscillations are positively related to the extent of flow characteristics deviation. The conclusion can provide reference to research on the causes of power oscillations.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Tang Y. Fundamental theory of forced power oscillation in power system. Power Syst Technol. 2006;30(10):29–33. (In Chinese).
Deng J-x, Hua Y, Zhang F. Study on the nonlinear interactions of oscillation modes. Autom Electr Power Syst. 2003;27(16):35–9. (In Chinese).
Xiao M, Liang Z-f. Analysis on the forced oscillation failure in china southern power grid and its handling measures. South Power Syst Technol. 2012;6(2):51–4. (In Chinese).
Tian S-f, Shi Z-j, Yan L-t. Study of valve overlapping of steam turbine control system. Turbine Technol. 2008;50(6):448–50. (In Chinese).
Li J-b, Liu F-p. Optimization for the flow characteristic function of turbine valves and the influences on safe and economic operation. Electr Power. 2008;41(12):50–3. (In Chinese).
Xu Y-h, He R-m, Han Z-y. The cause analysis of turbine power disturbance inducing power system low frequency oscillation of resonance mechanism. Proc CSEE. 2007;27(17):83–7. (In Chinese).
Dong C, Yun L, et al. Research on the properties of forced oscillations caused by turbine’s periodic disturbance. Power Syst Clean Energy. 2012;28(4):35–41. (In Chinese).
Kundur P. Power system stability and control. Beijing: China Electri Power Press; 2002. p. 485–507.
IEEE Committee Report. Dynamic models for steam and hydro turbines in power system studies. IEEE Trans Power Appar Syst. 1973;92(6):1904–15.
IEEE Working Group on Prime Mover and Energy Supply Models for System Dynamic Performance Studies. Dynamic models for fossil fueled steam units in power system studies. IEEE Trans Power Syst. 1991;6(2):753–61.
Tian Y-f, Guo J-y, Liu Y-q, et al. A mathematical model of reheat turbine for power grid stability calculation. Power Syst Technol. 2007;31(5):39–44. (In Chinese).
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2015 Springer International Publishing Switzerland
About this paper
Cite this paper
Tan, J. (2015). Simulation Analysis of Impacts of Flow Characteristics on Power Oscillation. In: Wang, W. (eds) Proceedings of the Second International Conference on Mechatronics and Automatic Control. Lecture Notes in Electrical Engineering, vol 334. Springer, Cham. https://doi.org/10.1007/978-3-319-13707-0_35
Download citation
DOI: https://doi.org/10.1007/978-3-319-13707-0_35
Published:
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-13706-3
Online ISBN: 978-3-319-13707-0
eBook Packages: EngineeringEngineering (R0)