METHOD TO CONTROL ELECTRIC STARTER GENERATOR FOR GAS TURBINE ENGINES

摘要

A gas turbine engine starting system including an electric start generator (ESG) free of temperature sensors and configured to provide torque to a gas turbine engine. A fuel metering module is configured to provide a quantity of fuel to the gas turbine engine, and an electronic control system (ECS). The ESG includes a plurality of subcomponents. The ECS is configured to predict a future temperature of the ESG, predict that at an ongoing start or an uninitiated start will be unsuccessful, and provide the prediction that at an ongoing start or an uninitiated start will be unsuccessful to an operator. The prediction of the future temperature of the ESG is based on a plurality of historical ESG thermal trending information and an input ambient temperature. The prediction that at an ongoing start or an uninitiated start will be unsuccessful is based on the future temperature of the ESG.

主权项

1. A gas turbine engine starting system comprising:
an electric start generator (ESG) free of temperature sensors and configured to provide torque to a gas turbine engine, wherein the ESG comprises a plurality of subcomponents; a fuel metering module configured to provide a quantity of fuel to the gas turbine engine; and an electronic control system (ECS) that:
determines a future temperature of the ESG based on a plurality of historical ESG thermal trending information and an input ambient temperature;determines whether at least one of an ongoing start and an uninitiated start will be unsuccessful, wherein the determination of whether at least one of the ongoing start and the uninitiated start will be unsuccessful is based on the future temperature of the ESG; andindicates the determination of whether at least one of the ongoing start and the uninitiated start will be unsuccessful to an operator.