METHOD OF OPERATING A GAS TURBINE ENGINE

摘要

A method of operating a gas turbine engine (10) having a rotatable turbine shaft (14) with an electric machine (24) mounted to the shaft (14). The method includes providing supplemental acceleration and/or deceleration of the turbine shaft (14) of the gas turbine engine (10) through the use of the electric machine (24) operated as an electric motor and/or an electric generator, in order to avoid an undesirable engine speed range during engine operation.