Method for evaluating heat energy storage scale and optimized operation in thermal power plant

The invention relates to the technical field of optimized operation of a combined heat and power generation system, in particular to a method for evaluating the scale and optimized operation of a heat energy storage device in a thermal power plant, which comprises the following steps: S1, obtaining three descriptive parameters according to historical thermal load data of the combined heat and power generation plant, and estimating an approximate value of heat energy storage capacity and a lower limit value of charging/discharging power; s2, according to the heat energy storage capacity approximate value and the charging/discharging power lower limit value, a combined heat and power generation plant optimization operation model is adopted, and the unit minimum operation cost is screened; and S3, according to the minimum operation cost, performing economic evaluation by adopting a financial evaluation model to obtain decision reference data. In order to facilitate the understanding of the short-term operational