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Volume 33 Issue 5
Mar.  2025
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ZHOU Yong, ZHANG Li. Analysis of Operators’ Diagnosis Tasks Based on Cognitive Process[J]. Nuclear Power Engineering, 2012, 33(5): 69-75.
Citation: ZHOU Yong, ZHANG Li. Analysis of Operators’ Diagnosis Tasks Based on Cognitive Process[J]. Nuclear Power Engineering, 2012, 33(5): 69-75.

Analysis of Operators’ Diagnosis Tasks Based on Cognitive Process

  • Received Date: 2011-07-15
  • Rev Recd Date: 2012-06-25
  • Available Online: 2025-03-08
  • Diagnosis tasks in nuclear power plants characterized as high-dynamic uncertainties are complex reasoning tasks.Diagnosis errors are the main causes for the error of commission.Firstly,based on mental model theory and perception/action cycle theory,a cognitive model for analyzing operators’ diagnosis tasks is proposed.Then,the model is used to investigate a trip event which occurred at crystal river nuclear power plant.The application demonstrates typical cognitive bias and mistakes which operators may make when performing diagnosis tasks.They mainly include the strong confirmation tendency,difficulty to produce complete hypothesis sets,group mindset,non-systematic errors in hypothesis testing,and etc.

     

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