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Turbine control device prognostics

  • US 9,926,803 B2
  • Filed: 06/28/2016
  • Issued: 03/27/2018
  • Est. Priority Date: 06/28/2016
  • Status: Active Grant
First Claim
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1. A driver communicatively coupled to a turbine control device and a turbine engine control unit (ECU), the driver comprising a memory, a processor, and instructions stored in the memory and operable when executed by the processor to cause the driver to perform operations comprising:

  • operating the turbine control device by recurrently;

    receiving a demand signal from the turbine ECU; and

    determining and transmitting a desired position to the turbine control device based on the demand signal; and

    during the operating of the turbine control device, tracking a total device travel distance over time by recurrently;

    selectively identifying actual device movement based on device position data associated with a displacement sensor monitoring the turbine control device by;

    comparing the device position data to a device movement window comprising a predetermined threshold value based on a physical characteristic of the turbine control device; and

    determining that the device position is beyond the device movement window; and

    accumulating an incremental device travel distance corresponding to the identified actual device movement with the total device travel distance.

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