Abstract
Numerical simulation and stability analysis of an islanded power network comprising 40 MW of hydropower, 20 MW of wind power, and 60 MW of gas-fired power plants are investigated. First, the modeling of each power plant is fully described. The wind farm is modeled through an aggregated model approach of 10 wind turbines of 2 MW and comprises a stochastic model of wind evolution with wind gust. The hydraulic power plant comprises the upstream reservoir, a 1,000 m gallery, a surge tank, the 500 m-long penstock feeding a low-specific-speed pump turbine and connected to the downstream tank through a 70 m-long tailrace water tunnel. The model of gas-fired power plant includes an upstream rotating compressor coupled to a downstream turbine and a combustion chamber in-between. To predict the performance of the gas turbine engine, both at design and off-design conditions, performance maps are integrated in the modeling. Then, the capability of the hydraulic power plant to compensate wind power variations or load rejections is investigated using the EPFL simulation software SIMSEN to perform time domain simulation of the entire mixed islanded power network. This study shows the evolution of the response time of the hydraulic part as function of the penstock length and highlights the influence of the hydraulic layout on the power system stability. The dynamic performances of such hydraulic power plants are of highest interest for improving stability of mixed islanded power network, but require reliable simulation model of the entire network for safety and optimization purposes.
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Abbreviations
- A :
-
Cross-sectional area [m2]
- a :
-
Wave speed [m/s]
- C :
-
Hydraulic capacitance [m2]
- C inf :
-
Wind velocity [m/s]
- D :
-
Diameter [m]
- g :
-
Gravity [m/s2]
- f :
-
Frequency [Hz]
- H :
-
Head [m]
- L :
-
Hydraulic inductance [s2/m2]
- N :
-
Rotational speed [1/min]
- Q :
-
Discharge [m3/s]
- R :
-
Hydraulic resistance [s/m2]
- Re :
-
Reynolds number [-]
- R ve :
-
Viscoelastic resistance [s/m2]
- y :
-
Guide vanes opening [-]
- T :
-
Torque [Nm]
- λ :
-
Local loss coefficient [-]
- μ :
-
Dynamic viscosity [Pa s]
- μ′ :
-
Expansion viscosity [Pa s]
- ν :
-
Specific speed [-]
- ρ :
-
Density [kg/m3]
References
Wiik, J., Gjerde, J.O., Gjengedal, T. (2000). Impacts from large scale integration of wind farms into weak power systems. IEEE.
Nicolet, C., Vaillant, Y., Kawkabani, B., Allenbach, P., Simond, J.-J., Avellan, F. (2008). Pumped storage units to stabilize mixed islanded power network: A transient analysis, proceedings of HYDRO. Ljubljana.
Wylie, E. B., & Streeter, V. L. (1993). Fluid transients in systems. Englewood Cliffs: Prentice Hall.
Nicolet, C., Alligné, S., Kawkabani, B., Koutnik, J., Simond, J.J., & Avellan, F. (2009). Stability study of Francis pump-turbine at runaway. 3th IAHR International Meeting of the Workgroup on Cavitation and Dynamic Problems in Hydraulic Machinery and Systems.
Nicolet, C., Greiveldinger, B., Hérou, J.-J., Kawkabani, B., Allenbach, P., Simond, J.-J., et al. (2007). High-order modeling of hydraulic power plant in islanded power network. IEEE Transactions on Power Systems, 22(4), 1870–1880.
Slootweg, J. G., De Haan, S. W. H., Polinder, H., & Kling, W. L. (2003). General model for representing variable speed wind turbines in power system dynamics simulations. IEEE Transactions on Power Systems, 18(1), 144–151.
Godfrey, K. (1991). Design and application of multifrequency signals. Computing and Control Engineering Journal, 2(4), 187–195.
Keating, E.L. (1993). Applied combustion. In M. Dekker, Inc., New York.
Turns, S. R. (1996). An introduction to combustion. New York: Mc Graw-Hill.
Inage, S. (2009). Prospects for large-scale energy storage in decarbonised power grids. International Energy Agency, OECD/IEA, Paris.
Boyce, MP. (2006). 2.0 Axial-flow compressors, The gas turbine handbook. Houston: NETL.
Walsh, P. P., & Fletcher, P. (2004). Gas turbine performance (2nd ed.). Oxford: Blackwell.
Acknowledgments
The authors would like to thank Swisselectric Research and the Energy Program of The Ark and the Foundation for Innovation of Valais Canton, for their financial support.
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Landry, C., Nicolet, C., Giacomini, S., Avellan, F. (2014). Influence of the Hydraulic System Layout on the Stability of a Mixed Islanded Power Network. In: Gourbesville, P., Cunge, J., Caignaert, G. (eds) Advances in Hydroinformatics. Springer Hydrogeology. Springer, Singapore. https://doi.org/10.1007/978-981-4451-42-0_26
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DOI: https://doi.org/10.1007/978-981-4451-42-0_26
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