Title :
Simulation of reduced order hydro turbine models to study its hydraulic transient characteristics
Author :
Kishor, Nand ; Saini, R.P. ; Singh, S.P.
Author_Institution :
AHEC, Indian Inst. of Technol., Roorkee
Abstract :
The elasticity of water column effect in penstock of a hydro power plant represents an irrational term in turbine-penstock transfer function (TF) model. In this paper, this function is reduced to an order r= 1,2,3 & 4 using H-infinity approximant method. The gate position-turbine power nonlinear steady-state characteristic is modeled for these reduced order TFs. The dynamic characteristic is determined using multi-step signal. And the time-domain and frequency-domain simulations of turbine power are presented and compared with widely known Pade approximant method
Keywords :
Hinfin control; approximation theory; elasticity; hydraulic turbines; hydroelectric power stations; power system control; power system simulation; reduced order systems; transfer functions; H-infinity approximant method; TF model; dynamic characteristic; elasticity; frequency-domain simulation; hydraulic transient characteristics; hydro power plant; nonlinear steady-state characteristic; penstock; reduced order hydro turbine models; time-domain simulation; transfer function; water column effect; Control systems; Elasticity; Frequency; H infinity control; Hydraulic turbines; Power generation; Steady-state; Time domain analysis; Torque; Transfer functions; Approximation; Hydraulic transients; Hydro plant; Water column;
Conference_Titel :
9th International Multitopic Conference, IEEE INMIC 2005
Conference_Location :
Karachi
Print_ISBN :
0-7803-9429-1
Electronic_ISBN :
0-7803-9430-5
DOI :
10.1109/INMIC.2005.334399
