Damhead Creek. After helping overcome major problems with the steam control within the turbine bypass systems at Damhead Creek CCGT, Scottish Power contracted Craig Powers to carry out a number of important control system upgrades on their Siemens Moore APACS system.

• A complete rewrite of the start up and shutdown sequencing to provide all permutations of full module and half module operation (2 Mitsubishi GTs with HRSG, one Steam Turbine). This involved the production of a test simulator/plant model to facilitate simulated plant run ups.
  
  
• Turbine Bypass Steam Pressure and Temperature Control
  
  
• Drum Level Control (3 drum system, HP/IP/LP for each of the two HRSGs)
  
  
• Revised Air Cooled Condenser Control
  
  
• Fuel Gas Supply Pressure Control
  
  
• Software review and APACS modifications to ensure compliance with grid frequency response contracts