Recent content by drmsrmurty

Guess: D = 32.5 Temperature; E and A: density and valve flow coefficient;

The block appears to be a calculation module for steam flow rate through a valve. Steam flow rate is proportional to square root of differential pressure DP in the figure shown as input from another module. D,E,A are the fixed values used in the formula for flow rate. Without knowing the...

Pl see attachment (in 2 pages) in block diagram form.

Assume isolated operation. Droop mode is proportional control. Control action goes on till mechanical power matches with load keeping frequency reference fixed. Isochronous mode is integral control. Control action goes on till frequency matches with the fixed reference frequency. Above refers...

A Gas turbine generator (GTG) is either synchronized to a grid or connected an isolated load. Under grid connected operation, generator output is gradually increased by increasing the fuel flow till rated value. Once synchronized to a grid , frequency (or speed) does not change. If generator...

In any Control System, there are some adjustable parameters provided for tuning the performance ( like Proportional, Integral and Derivative gains in a PID Controller). They are usually referred as "Control constants"

Generator will continue to be connected to load. Turbine control can take care. In the rare event when control fails, under frequency relays etc can act and protect machine.

When load increases from 2.5 MW to 5 MW, speed/ frequency starts falling and control system responds to increase fuel input so that generation can increase to 5 MW to match that of new load. At settling time speed/frequency however does not return to predisturbance value due to "droop"...

Initial steam pressure control Mode: MW is controlled by Boiler and Steam pressure is maintained by Turbine Controls. Limit Pressure Control Mode: Normally Load Controller maintains TG power output and boiler controller maintains steam pressure. But when pressure falls to a preset value...

Are the Two GTs operating in parallel?

Sorry for coming in late. I am the author of the article referred by you. If you still have some questions I will clarify.