CONTROL METHOD FOR TWO-STAGE GAS MIXING TYPE TURBO-GENERATOR

PURPOSE:To provide a control method for a two-stage gas mixing type turbo- generator, which is capable of stabilizing parallel operation of the two-stage gas mixing type turbo-generator with other generators when the turbo-generator is operated in parallel with the other generators, and capable of effectively utilizing steam generated from not only an exhaust gas economizer, but an air cooler of a main engine. CONSTITUTION:This method is a control method for a two-stage gas mixing type turbo 1-generator TG which is driven by introducing high pressure steam through a governor valve 4 operated by a speed control governor 5, and by introducing intermediate pressure steam through a first gas mixing valve 6 and low pressure stream through a second gas mixing valve 24. The opening of the second gas mixing valve 24 is controlled by electric power signals corresponding to the quantity of power supply of the turbogenerator TG, and the quantity of steam is adapted to be controlled in response to and in proportion to the amount of lift of the governor valve 4 when the quantity of steam generated by an exhaust gas economizer E is insufficient.