Nonlinear Hydro Turbine Model for Medium and Long Term Power System Stability Analysis with Sharing Long Common Tunnel

Abstract:

Based on the theoretical derivation of hydraulic coupling relationship between the hydropower units sharing long common tunnel,the non-linear hydro turbine model with sharing long diversion tunnel system is established and order-reduced in accordance with the demand of power system simulation. And according to the complex structure characteristics of surge tank,a method of correcting surge tank storage constant with surge tank structure coefficient is proposed. This hydro turbine model can reflect the influence of surge tank and sharing common tunnel in the power system long term process,the accuracy of model is proved by comparison of simulation results and actual recording data in power system.

• Periodical: Advanced Materials Research (Volumes 960-961)
• Pages: 574-579
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.960-961.574
• Online since: June 2014
• Authors: Fan Tang, Li Jie Ding, Yu Fei Teng, Wei Wei
• Keywords: Hydraulic Coupling, Hydro Turbine Model, Long Term Stability, Power System Simulation, Structure Coefficient

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