The main steam isolation valve is the key equipment to ensure the safe operations of nuclear power plants,and its quick-clos-ing time is one of the most important performance indicators for measuring the driving device of the main steam isolation valve.In or-der to realize the fast estimation of the quick-closing time of the main steam isolation valve,the regression analysis technology is intro-duced based on the results of the system simulation of the driving device,and a prediction model of the quick-closing time is proposed,which provides reference for the domestic research and development.Based on the system simulation results of the main steam isolation valve drive device,the prediction model of single/double channel closing time is established,and the reliability and accuracy of the pre-diction model are verified by the test data.The results show that the proposed prediction model can accurately predict the single/double channel closing time,and the prediction error of single channel closing time is less than 5.86％,and the average prediction error is 2.82％.The prediction error of dual-channel closing time is not greater than 5.80％,and the average prediction error is 2.77％.
关键词
主蒸汽隔离阀/驱动装置/快关时间/预测模型/回归分析
Key words
Main Steam Isolation Valve/Driving Device/Quick-Closing Time/Prediction Model/Regression Analysis
维普
万方数据