Nuclear reactor containment vessel key parameter rapid prediction system and model construction method
A technology for predicting models and key parameters, applied in electrical digital data processing, instruments, design optimization/simulation, etc., can solve problems such as low analysis efficiency, dependence on solution accuracy, slow solution speed, etc., to achieve the effect of high prediction accuracy
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Embodiment 1
[0039] The invention is based on the LSTM time-series deep learning model, and performs high-precision rapid prediction and analysis on the transient parameters of the containment in the case of a main steam pipeline rupture MSLB accident of the passive containment cooling system. Specific operation steps such as process figure 1 shown.
[0040] (1) Set the initial input parameters
[0041] Input parameters: initial pressure inside the containment, initial liquid film coverage, cooling water flow rate, and wind speed; as shown in Table 1, the parameters selected during the demonstration implementation process in this embodiment are shown.
[0042] Table 1 Initial input parameters
[0043]
[0044] (2) Use the MSLB transient safety parameter output as the actual value
[0045] (3) Set the working condition data set in this embodiment
[0046] As shown in Table 2, it is the working condition data table set in this embodiment, in which the analysis program takes 1s as the ...
Embodiment 2
[0105] A rapid prediction system for key parameters of containment, including:
[0106] Input parameter acquisition module, where the input parameters include initial pressure in containment, initial liquid film coverage, cooling water flow rate, wind speed, etc.;
[0107] a data processing module, preprocessing the parameter data obtained by the input parameter obtaining module;
[0108] The preprocessing method is to normalize the data;
[0109] Prediction module, input the input parameter data processed by the data processing module into the LSTM rapid prediction model to obtain the predicted value; the LSTM rapid prediction model is the fast prediction model for the containment key parameters constructed in embodiment 1;
[0110] The prediction result verification module compares the predicted value with the actual value, and selects the mean square error (MSE) to evaluate the prediction effect of the model. The result checking module compares the predicted value obtaine...
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