Evaluation Tests of Event Identification Method Using Neural Network at Kashiwazaki Kariwa Nuclear Power Station Unit No. 4
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概要
- 論文の詳細を見る
An event identification method using a neural network has been evaluated in an on-line environment during the plant startup test at Unit No.4 Plant in the Kashiwazaki Kariwa Nuclear Power Station. In the method, the neural network identifies the event from the change pattern of analog data, such as reactor pressure signals, and then the result is confirmed or similar events are discriminated using digital data, such as valve open signals. Before the test the neural network is trained for the events causing a reactor scram by using analysis results. <BR>For the test the method is incorporated into a prototype of the alarm handling system which is connected to the plant facilities. Five kinds of analog data are acquired and eight sampled data from each, namely a total of 40 data, are input to the neural network after normalization. The results show that the load rejection, the turbine trip and the main steam isolation valve closure events are correctly identified from 9 kinds of subject events, regardless of the difference between the trained analysis results and the recognized plant data. This is owing to the data sampling and normalization methods as well as the robustness of the neural network.
- 社団法人 日本原子力学会の論文
- 1996-05-25
著者
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Wada Toshiyuki
Kashiwazaki Kariwa Nuclear Power Plant Construction Office Tokyo Electric Power Co.
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Arita Setsuo
Power & Industrial Systems R&d Division Hitachi Ltd.
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Ohga Yukiharu
Power & Industrial Systems R&d Division Hitachi Ltd.
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Ohga Yukiharu
Power & Industrial Systems R & D Division Hitachi Ltd.
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FUKUZAKI Takaharu
Power & Industrial Systems R&D Division, Hitachi, Ltd.
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TANIKAWA Naoshi
Hitachi Works, Hitachi, Ltd.
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TAKANO Yoshiyuki
Omika Works, Hitachi, Ltd.
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SHIRATORI Shinobu
Kashiwazaki Kariwa Nuclear Power Plant Construction Office, Tokyo Electric Power Co.
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Tanikawa Naoshi
Hitachi Works Hitachi Ltd.
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Takano Yoshiyuki
Omika Works Hitachi Ltd.
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Shiratori Shinobu
Kashiwazaki Kariwa Nuclear Power Plant Construction Office Tokyo Electric Power Co.
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Fukuzaki Takaharu
Power & Industrial Systems R&d Division Hitachi Ltd.
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ARITA Setsuo
Power & Industrial Systems R & D Division, Hitachi, Ltd.
関連論文
- Development of a Method of Selecting Important Alarms for Nuclear Power Plants
- Evaluation Tests of Event Identification Method Using Neural Network at Kashiwazaki Kariwa Nuclear Power Station Unit No. 4