報告書番号

S92002

タイトル（和文）

運転チーム行動モデル検証用プラントシミュレーションコードの開発

タイトル（英文）

Development of Plant Simulation Code for oerifying the operator team behavor model.

概要 （図表や脚注は「報告書全文」に掲載しております）

運転チーム行動モデルの妥当性をモデルのシミュレーション結果と実際の人間（被験者）の振る舞いの比較によって検討する必要がある。そこで本報告では、進展のゆるやかな複数のトラブルを実時間で模擬でき、トラブル状態を回復するための制御が行え、且つ被験者が容易にプラントの動持性を理解できる、簡略化したプラントを設計し、そのシミュレーションコードを開発する。また、運転チーム行動モデルとプラントシミュレーションコードとの間で視覚情報や操作情報のやりとりを行うＭＭＩモデルの基本設計を、人間の周辺視による視覚情報獲得能力等を考慮して行う。これらにより、時々刻々変化するプラント状態に関する情報を取り込み、認知判断を行う運転チーム行動モデルのシミュレーションが可能となる。さらに、本シミュレーションコード及び今後製作する制御盤により被験者実験が行え、運転チーム行動モデルの妥当性検討が可能となる。

概要 （英文）

Several countermeasures are devised in order to reduce incidents caused by human errors and enhance the reliability of nuclear power plants. But evaluation of the efficiency of the countermeasures depends on the subjective opinions of experts about humanfactors engineering. Therefore, a method to evaluate their efficiency has been desired. To meet the demand, this study develops the "SYBORG: Simulation System for the Behavior of the Operating Group"as a tool for evaluating the countermeasures.This report describes simplified "plant simulation code" developed as a constituent element of the SYBORG. This also describes a fundamental design of Man Machine Interface(MMI) model which interfaces the plant simulation code(the plant model)and the team behaviorsimulation system. The main results are as follows: I. Development of plant simulation code Using a non linear dynamic modeling software for continuous and discrete multirate syetem, a real time plant simulation code is developed. This code has followingfeatures.(1)This code makes it easy to connect with operation team model as an on-line system because actions like starting or stopping a pump at any time are reflected in the calculation of plant behavior.(2)It makes easy to synchronize the plant simulation code and operation team model that real time simulation, high/low speed simulation can be available by this simulation code.(3)This code can simulate the plant behavior of several abnormal events which show similar phenomena of plant behavior. This make it possible to simulate the behavior of operation team responding the events with communications and observation.(4)This code which simulates the behavior of a simplified plant gives concreterules or knowledge for plant operation, which are very important to develop the team behavior simulation system. This simulation code makes it possible to verify the operator team behavior model, comparing the simulation results to some subjective experiments. II. Fundamental design of MMI model Functional design of Man Machine Interface are done, which transmits the plant parameters and control actions by the operation team model between the plant simulation code and the operation team model, considering the information about the plant condition the operationteam model has noticed. The features of the function that MMI model has to transit the information to the operation team model are following. (1) Defining the attention attraction level depending on the display types of the information makes it possible to present the effects of type of display for acquiring visual information from control panel.(2)Monitoring what the operation team model observes makes it possible to determine the display which are in the field of vision. The human's cognitive ability of information by peripheral vision is expressed by the information in the field of vision.

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