METHOD FOR REGULATING POWER OF A GAS-TURBINE GENERATOR SYSTEM

摘要

The invention relates to the field of effecting control upon engines, in particular to regulating power of a gas-turbine generator system used, e.g., in gas-turbine locomotives, hybrid locomotives, etc. The technical effect of the proposed invention is provision of rather quick regulation of electric power of the gas turbine generator system according to the locomotive operating modes and a load curve of this system in a wide range of turbine rpm as well as use of the gas turbine generator system as the power unit of a locomotive with an electric traction drive, which will result in raising reliability and efficiency of the locomotive operation. This technical effect is achieved due to that a control signal for the fuel metering unit actuator is formed by an electronic engine control system (EECS) on the basis of processing of a signal from a turbine rpm sensor and a design value of the generator active electric output power, and, according to a locomotive operating mode, the system power is preset by the operators controller, a preset power value is compared to a real power calculated value which is obtained according to measured values of current, as rectified by a traction rectifier, and voltage, an obtained difference is taken as the basis for forming a control signal for the fuel metering unit actuator in order to provide a certain turbine rpm and a control signal for a current regulator supplying energy to the generator excitation winding in accordance with the load curve of the gas turbine generator system.