Abstract
Higher thermal efficiency and operational flexibility are required for next generation thermal plants to reduce CO_2 emission and cope with the increase of power by renewable energy which is changeable depending on the weather. The Advanced Humid Air Gas Turbine (AHAT) system is expected to meet these requirements. The system concept and cycle performance of the AHAT system were verified by operation tests of a 3MW-class test plant and a 40MW-class pilot plant so far. However, the operational flexibility of the system has not been clarified sufficiently by experiment or calculation. Therefore, we develop the dynamics simulation model of the system and analyze the load response characteristics in this paper.
