×

Method for controlling fuel splits to gas turbine combustor

  • US 7,593,803 B2
  • Filed: 03/16/2007
  • Issued: 09/22/2009
  • Est. Priority Date: 11/20/2003
  • Status: Expired due to Fees
First Claim
Patent Images

1. A method for adjusting a base fuel split schedule for a gas turbine combustor comprising:

  • a. determining a corrected target turbine exhaust temperature based on a compressor pressure condition;

    b. determining a first corrected temperature adjustment to the corrected target exhaust temperature based on at least one parameter of a group of parameters consisting of compressor inlet pressure loss and turbine exhaust back pressure;

    c. determining a second corrected temperature adjustment to the corrected target exhaust temperature based on a nitrogen oxide (NOx) limiting requirement and the base fuel split command;

    d. determining an adjusted corrected target exhaust temperature based on the first corrected temperature adjustment and the second corrected temperature adjustment;

    e. determining an uncorrected adjusted target exhaust temperature based on a temperature of a discharge of a compressor of the gas turbine and the adjusted corrected target exhaust temperature;

    f. determining a temperature difference between the uncorrected adjusted target exhaust temperature and an uncorrected target exhaust temperature selected from a combustor temperature leveling algorithm, andg. applying the temperature difference to generate an adjusted fuel split schedule.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×