Systematic parameter estimation method for multi-reactor one-machine nuclear power station

The invention discloses a systematic parameter estimation method for a multi-reactor one-machine nuclear power station, which is used for discussing the estimability of mechanism model parameters and the reliability level of an estimation result based on the links of parameter sensitivity analysis, experimental design, uncertainty quantification, reliability evaluation and the like by starting from the requirements of implementing uncertain parameter calibration and model correction. And the ill-conditioned parameter estimation problem is effectively solved through parameter subset selection. According to the method, an estimator test method combining uncertainty quantization and reliability evaluation is adopted, parameters with large estimation variance and high correlation degree are reduced when necessary, and parameter estimation and parameter subset selection are recursively implemented to ensure that an optimal to-be-estimated parameter subset and a reliable estimation result are obtained. The method h