Microprocessor Based Controller for Complex Turbine Systems PUBLIC ACCESS

[+] Author Affiliations
James Trombley, Walter M. Mathias, Craig Curtis

Woodward Governor Company, Fort Collins, CO

Paper No. 83-GT-168, pp. V002T04A001; 5 pages
  • ASME 1983 International Gas Turbine Conference and Exhibit
  • Volume 2: Aircraft Engine; Marine; Microturbines and Small Turbomachinery
  • Phoenix, Arizona, USA, March 27–31, 1983
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-7952-8
  • Copyright © 1983 by ASME


The increasing complexity of control system requirements has led to the use of microprocessor based controllers on gas turbine systems. For this automotive turbine system, precise temperature controlled accelerations and modulating clutch spools demanded complex schedules and tight control of system non-linear behavior. The control system also monitors turbine performance and START/STOP requirements.

The control system hardware consists of a single string controller, fitted with auxiliary overspeed and temperature monitors. Eight proportional integral derivative (P ID) loops are run concurrently to control the fuel and clutch valves, as well as the schedules, logic and monitoring functions. The control functions are scheduled to run every 20 to 160 milliseconds, as a function of their bandwidth requirements.

System diagnostics are also provided, allowing rapid service of the system when shutdowns occur.

Copyright © 1983 by ASME
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