Method and device for monitoring main steam temperature of thermal power generating unit and storage medium

The invention relates to the technical field of thermal power generating units, in particular to a method and device for monitoring the main steam temperature of a thermal power generating unit and a storage medium, and the method comprises the steps that a MAXSELECT macro algorithm module composed of a TRANSPORT algorithm module is adopted, a sampling value is delayed for 60 seconds at the current time T, a sampling value is delayed for 59 seconds at the time T+1, and the like, the sampling value at the T+59 moment is delayed for 1 second, and the maximum value of the current sampling value and 59 sampling values within previous 59 seconds is calculated at the T+60 moment to obtain the maximum sampling value within previous 60 seconds; delay output is carried out on the sampling value for 9 minutes, 8 minutes,..., 2 minutes and 1 minute, and a logic judgment function of the maximum value within 10 minutes is carried out; the difference value between the maximum value and the current real-time value is calcul