US 11,658,594 B2
System and method to detect low speed in a gas turbine generator
Boris Henry Rocha Mercado, Queretaro (MX); Jorge Fabian Soria Ortiz, Queretaro (MX); Hector Javier Herrera, Houston, TX (US); John Thanh Nguyen, Humble, TX (US); Nam Thanh Tran, Tomball, TX (US); Joel Keith Trombley, Houston, TX (US); and Randall John Kleen, Channelview, TX (US)
Assigned to General Electric Company, Schenectady, NY (US)
Filed on Oct. 21, 2019, as Appl. No. 16/658,772.
Prior Publication US 2021/0119561 A1, Apr. 22, 2021
Int. Cl. H02P 9/08 (2006.01); F01D 15/10 (2006.01); F01D 17/06 (2006.01); F02D 31/00 (2006.01); F03D 7/04 (2006.01); G05B 13/04 (2006.01); H02P 101/25 (2016.01)
CPC H02P 9/08 (2013.01) [F01D 15/10 (2013.01); F01D 17/06 (2013.01); F02D 31/001 (2013.01); F03D 7/045 (2013.01); G05B 13/04 (2013.01); F05D 2220/76 (2013.01); G05B 2219/2619 (2013.01); H02P 2101/25 (2015.01); H02P 2201/03 (2013.01)] 15 Claims
OG exemplary drawing
1. A control system for a power generation system comprising a generator coupled to a turbine via a shaft, comprising:
a memory storing instructions; and
a processor coupled to the memory and configured to execute the instructions, wherein when the instructions are executed, cause the processor to:
receive a direct current (DC)-link voltage from an automatic voltage regulator (AVR), wherein the AVR is configured to control voltage characteristics of the generator;
determine a speed of the generator based on the DC-link voltage; and
determine if the generator has stopped based on the speed of the generator.