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Taylor-Lie series를 이용한 원자로 점 동특성 방정식의 일차홀드 이산화
박유진(Yujin Park),정길도(Kilto Chong) 제어로봇시스템학회 2012 제어로봇시스템학회 합동학술대회 논문집 Vol.2012 No.7
Various numerical methods are studied to solve the point kinetics equations in nuclear dynamics. However the point kinetics equation has stiffness problem. So it is difficult to obtain accurate results. In this paper, we proposed a method based on the Taylor-Lie series method under the First order hold (FOH) assumption. To evaluate the performance of presented method, the procedure is tested using multi input signals. By applying the method to the equation, we can resolve the stiffness problem.
강영두(Youngdoo Kang),정충희(Choong-Heui Jeong),정길도(Kilto Chong) 대한전기학회 2008 대한전기학회 학술대회 논문집 Vol.2008 No.10
In the case of unauthorized individuals, systems and entities or process threatening the instrumentation and control systems of nuclear facilities using the intrinsic vulnerabilities of digital based technologies. those systems may lose their own required functions. The dis loss of required functions of the critical systems of nuclear facilities may seriously affect the safety of nuclear facilities. Consequently, digital instrumentation and control systems, which perform functions important to safety, should be designed and operated to respond to cyber threats capitalizing on the vulnerabilities of digital based technologies. To make it possible. the developers and licensees of nuclear facilities should perform appropriate cyber security program throughout the whole life cycle of digital instrumentation and control systems. Under the goal of securing the safety of nuclear facilities. this paper presents the KINS' regulatory position on cyber security program to remove the cyber threats that exploit the vulnerabilities of digital instrumentation and control systems and to mitigate the effect of such threats. Presented regulatory position includes establishing the cyber security policy and plan, analyzing and classifying the cyber threats and cyber security assessment of digital instrumentation and control systems.