Hello Everyone.
So I work in a 210 MW Steam turbine unit. GE Xinhua OC4000 is used for Digital Electrohydraulic Governing of ST. There are two modes available for Governing, Hydraulic and DEH. Both frequency mode and load mode of operation The screen shows Control Oil pressure and Follow Oil pressure and when these two pressure are close, DEH is put to auto mode operation and Hydraulic is put on automatic tracking.
My query is:
a) is there any manual or study material available in the internet to understand the load control loop and frequency control loops of this particular control system?
b) Is there any explanatory material for the Hydraulic Auto tracking the DEH governing control oil pressure or such?
So I work in a 210 MW Steam turbine unit. GE Xinhua OC4000 is used for Digital Electrohydraulic Governing of ST. There are two modes available for Governing, Hydraulic and DEH. Both frequency mode and load mode of operation The screen shows Control Oil pressure and Follow Oil pressure and when these two pressure are close, DEH is put to auto mode operation and Hydraulic is put on automatic tracking.
My query is:
a) is there any manual or study material available in the internet to understand the load control loop and frequency control loops of this particular control system?
b) Is there any explanatory material for the Hydraulic Auto tracking the DEH governing control oil pressure or such?
