Abstract

According to the thermal economic characteristics and primary frequency modulation characteristics of the thermal power unit’s variable working conditions, the nozzle distribution steam turbine unit is taken as the research object to meet the primary frequency modulation capacity and reduce the unit heat consumption rate. The influence of the valve position on the economics of the unit and the primary frequency modulation capability is used to provide a richer adjustment basis for the technical and economic comparison between different operating modes of the unit, and the obtained sliding pressure running curve can meet the requirements of primary frequency regulation of the power grid. The throttling loss generated during the operation of the unit is minimized, and the optimal configuration between the grid operation and the power economy is realized.

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