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

fYear

2005

fDate

24-25 Dec. 2005

Firstpage

1

Lastpage

6

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

H^infin 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;

fLanguage

English

Publisher

ieee

Conference_Titel

9th International Multitopic Conference, IEEE INMIC 2005

Conference_Location

Karachi

Print_ISBN

0-7803-9429-1

Electronic_ISBN

0-7803-9430-5

Type

conf

DOI

10.1109/INMIC.2005.334399

Filename

4133414