Nuclear power plant, water level control method and system for steam generator

The invention is applied to the field of nuclear power control, which provides a nuclear power plant and steam generator water level control method and system thereof. The method includes the following steps: acquiring the parameter and equipment running status related to the steam generator water level control; outputting the operation entrance related to the steam generator water level control and the acquired parameter and equipment running status related to the steam generator water level control to a host controller interface; receiving the input steam generator water level control instruction from the operations entrance of the host controller interface, and executing the steam generator water level control operations corresponding to the steam generator water level control instruction. The inventive embodiment outputs the information related to the steam generator water level control to a same man-machine interactive interface, so that operators can intuitively, comprehensively and fast acquire paramet