Lower limit for limit block 1” (fuel -0.1 “Limit limit). Upper limit for limit block 1” (fuel 1.5 “Limit limit). Combustor time (s). 0.01 Tc Speed governor constant. 25 W Speed governor constant. 0 X Speed governor constant. 0.05 Y Speed governor constant. 1 Z Fuel system time constant (s). 0.4 τFS Compressor discharge volume time constant (s). 0.2 τCP Table .2: Parameters for Notional Twin-Shaft Gas Turbine Model Parameter Description Default Value Source positioner constant. 1 a Valve positioner constant. 0.05 b Valve positioner constant. 1 c No-load fuel parameter. 0.2 kflma No-load fuel parameter (1- 0.8 kflmb kflma). Engine speed request function slope. 0.25 kEFR1 Engine speed request function intercept. 0.75 kEFR2 Acceleration limit (pu/s). 0.01 Acceleration control integral gain. 100 ki-α Lower limit for limit block 1” (fuel -0.1 “Limit limit). Upper limit for limit block 1” (fuel 1.5 “Limit limit). Combustor delay time (s). 0.01 Tc Speed governor constant. 25 W Engine speed governor constant. 30 WE Speed governor constant. 0 X Engine speed governor constant. 1 XE Speed governor constant. 0.01 Y Engine speed governor constant. 1 YE governor constant. 1 Z Engine speed governor constant. 0 ZE Time constant for engine shaft dynamics (s). 8 τIg Fuel system time constant (s). 0.4 τFS
Lower limit for limit block “Limit 1” (fuel limit). -0.1 Upper limit for limit block “Limit 1” (fuel limit). 1.5 Tc Combustor time (s). 0.01 W Speed governor constant. 25 X Speed governor constant. 0 Y Speed governor constant. 0.05 Z Speed governor constant. 1 τFS Fuel system time constant (s). 0.4 τCP Compressor discharge volume time constant (s). 0.2 Table .2: Parameters for Notional Twin-Shaft Gas Turbine Model Parameter Description Default Value Source a positioner constant. 1 b Valve positioner constant. 0.05 c Valve positioner constant. 1 kflma No-load fuel parameter. 0.2 kflmb No-load fuel parameter (1- kflma). 0.8 kEFR1 Engine speed request function slope. 0.25 kEFR2 Engine speed request function intercept. 0.75 Acceleration limit (pu/s). 0.01 ki-α Acceleration control integral gain. 100 Lower limit for limit block “Limit 1” (fuel limit). -0.1 Upper limit for limit block “Limit 1” (fuel limit). 1.5 Tc Combustor delay time (s). 0.01 W Speed governor constant. 25 WE Engine speed governor constant. 30 X Speed governor constant. 0 XE Engine speed governor constant. 1 Y Speed governor constant. 0.01 YE Engine speed governor constant. 1 Z governor constant. 1 ZE Engine speed governor constant. 0 τIg Time constant for engine shaft dynamics (s). 8 τFS Fuel system time constant (s). 0.4
notional-system-report-two-rev18.docx