Steam pressure matching method of pressurized water reactor nuclear power unit, storage medium and nuclear power station

The invention provides a steam pressure matching method of a pressurized water reactor nuclear power unit, a storage medium and a nuclear power plant, and the method comprises the following steps: S1, building a steam pressure matching monitoring system which is used for measuring, comparing and analyzing the outlet pressure of a steam generator and the front pressure of a main steam valve; s2, a steam pressure matching optimization mode is formulated, specifically, in each operation time stage, the optimal main steam pressure design point of the steam turbine is selected, and the output value of the steam turbine in the current operation time stage is maximized through the optimal main steam pressure design point; and S3, the through-flow capacity of the steam turbine is adjusted, specifically, a transformation plan corresponding to the current operation time stage is implemented on the through-flow structure of the steam turbine. According to the method, the outlet pressure of the steam generator and the fr