Steam turbine and steam turbine control method

The invention provides a steam turbine and a control method of the steam turbine, the steam turbine comprises a cylinder, the cylinder is provided with a first accommodating cavity, a second accommodating cavity and a rotating shaft, in the embodiment of the invention, a through-flow assembly in the steam turbine at least comprises two sections: a first through-flow assembly and a second through-flow assembly, the containing cavities where the two through-flow assemblies are located are provided with the first inlet and the second inlet correspondingly, the first inlet and the second inlet can be selectively opened according to the flow of steam introduced into the steam turbine, and therefore the flow path of the steam in the through-flow assemblies can be changed along with power changes; the steam turbine can obtain ideal through-flow area and optimal through-flow efficiency under various powers, and the steam turbine can operate efficiently within a wide power range. 本发明提供了一种汽轮机及汽轮机的控制方法，包括汽缸，汽缸具有第一容纳腔、第二