The invention discloses a meta-learning
Bayesian optimization prediction method for multi-
modal displacement of a tank body of a photo-
thermal power station, and the method comprises the steps: collecting the data of displacement, temperature, vibration and the like through a multi-
modal sensor, separating a displacement sequence into trend, season and residual components through STL
decomposition, and carrying out the fusion with the data of the sensor, thereby constructing a 6-dimensional spatial-temporal
characteristic matrix; a two-way LSTM-attention mechanism model is adopted,
time sequence dependence is captured in a two-way mode, and key cross-
modal features are dynamically weighted. And introducing meta-learning-guided working condition adaptive
Bayesian optimization: pre-training a meta-model by using a historical working condition to establish a mapping relationship between working condition characteristics and hyper-parameters, dynamically dividing working conditions by real-
time data, then activating a corresponding
Gaussian sub-model, initializing a search space through meta-learning prior, and optimizing hyper-parameters in combination with an adaptive acquisition function. The
test set evaluates the performance of the model through RMSE and MAPE, and finally three-way displacement real-time prediction and safety early warning are achieved. The prediction precision and the dynamic adaptability of the tank body of the photo-
thermal power station under the complex working condition are remarkably improved.