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Interface Design for Monitoring and Recovering Critical Safety Functions in APR1400 Control Room

IFAC Proceedings Volumes 2001年第16期34卷 505-511页

作者： Huhn Kim Tae Y. Song Dong-Han Ham Wan C. Yoon Young C. Shin Department of Industrial Engineering Korea Advanced Institute of Science and Technology 373-1 Kusung-dong Yusong-gu Taejon 305-701 South Korea. Man-Machine Interface Design Team Korea Electric Power Research Institute 103-16 Munji-dong Yusong-gu Taejon South Korea. Software Quality Evaluation Center Electronics and Telecommunications Research Institute 161 Kajong-dong Yusong-gu Taejon 305-600 South Korea.

The advanced human-machine interface (HMI) in nuclear power plants provides an information environment that supports the operators' burdensome cognitive tasks. Safety function status check (SFSC), one of such tasks, can benefit from well-designed information aid. This paper describes an interface design for supporting the operator's SFSC task as an element of HMI for Advanced power Reactor 1400 (APR1400) of Korea. A prototype interface scheme for the SFSC task was developed based on the task analysis on APR1400 HMI and an evaluation of existing plants. The interface consists of three hierarchical levels of information: the goal tree including safety functions and their success paths, the flow structure of the success paths, and the system's topological structures related to the success paths. The interface is expected to have advantages in terms of cognitive information processing, which are currently being verified through systematic evaluations under diverse contexts and will be accordingly improved.

关键词： Safety Function Status Check Critical Function Monitoring System Critical Safety Function Success Path Operator Aiding Human-Machine Interface

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More accurate modelling of earthing systems transient behaviour

More accurate modelling of earthing systems transient behavi...

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International Conference on Telecommunications Energy (INTELEC)

作者： L. Grcev D. Hristov Elektrotehnicki fakultet University St Cyril and Methodius Skopje Macedonia Power Engineering Software and Technology Skopje Macedonia

Two computer models for analysis of transient behaviour of earthing systems based on the electromagnetic theory have been developed. The computer models are based on different mathematical models and different numerical techniques are applied. The first goal of the analysis is to compute the longitudinal current distribution in the earthing electrodes. Then once the currents are determined, other parameters of interest such as near fields, voltages, leakage currents, impedance, etc. may be determined by further calculations. In this paper the emphasis is given to computation of the induced overvoltages in circuits placed near the earthing systems in case of lightning. Comparison with the previous, more simplified computer models, shows that new models predict much greater induced transient voltages.< >

关键词： Grounding Electromagnetic transients Transient analysis Mathematical model Voltage Predictive models Electromagnetic modeling Electromagnetic analysis Distributed computing Current distribution

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power-SYSTEM VOLTAGE CONTROL BY DISTRIBUTED EXPERT SYSTEMS

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IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS 1990年第3期37卷 236-240页

作者： MATSUDA, S OGI, H NISHIMURA, K OKATAKU, Y TAMURA, S Artificial Intelligence Technology Department Computer and Communication Research Center Tokyo Electric Power Company Limited Japan Systems and Software Engineering Laboratory Toshiba Corporation Japan

A case study of the application of a distributed control scheme to a power system control is presented. In addition, an investigation has been conducted into voltage control. Combined injection of VAr-compensating devices controlled by distributed expert systems has been proposed as a measure to maintain voltage stability in a power system under heavy loading conditions. A simulation study has been carried out by using five workstations that represent a power system and four VAr-compensating devices. The results demonstrate the effectiveness of the proposed system for voltage recovery.< >

关键词： power system control power systems Voltage control Expert systems power system stability power system simulation Distributed control power system measurements Control systems power measurement

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Singularity in the positive Hall coeffcient near pre‐onset temperatures in high‐Tc superconductors

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AIP Conference Proceedings 1990年第1期213卷 247-252页

作者： G. C. Vezzoli M. F. Chen F. Craver B. M. Moon A. Safari T. Burke W. Stanley U.S. Army Materials Technology Laboratory Materials Science Branch Watertown Massachusetts 02172 Rutgers University Departments of Electrical Engineering and Ceramic Science Busch Campus Piscataway New Jersey 08854 Pulsed Power Center US Army Electronics Technology and Devices Laboratory Fort Monmouth New Jersey 07703 Pulsed Power Center US Army Electornics Technology and Devices Laboratory Fort Monmouth New Jersey 07703 Decision Software Cambridge Massachusetts 02139

Hall measurements using continuous extremely slow cooling and reheating rates as well as employing eqiulibrium point‐by‐point conventional techniques reveals a clear anomally in RH at pre‐onset temperatures near Tc in polycrystalline samples Y1Ba2Cu3O7 and Bi2Sr2Ca2Cu3O10. The anomaly has the appearance of a singularity of Dirac‐delta function which parallels earlier work on La1−xSrxCuO4. Recent single crystal work on the Bi‐containing high‐Tc superconductor is in accord with a clearcut anomaly. The singularity is tentatively interpreted to be associated (upon cooling) with initially the removal of positive holes from the hopping conduction system of the normal state such as from the increased concentration of bound virtual excitons due to increased exciton and hole lifetimes at low temperature. Subsequently the formation of Cooper pairs by mediation from these centers (bound‐holes) and/or bound excitons) may cause an ionization of these bound virtual excitons thereby re‐introducing holes and electrons into the conduction system at Tc.

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Automated Electric power Management and Control for Space Station Freedom

Automated Electric Power Management and Control for Space St...

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Intersociety Conference on Energy Conversion engineering (IECEC)

作者： J.L. Dolce P.A. Mellor J.A. Kish Electrical Systems Division Lewis Research Center NASA USA Software Engineering Office Lewis Research Center NASA USA Power Technology Division Lewis Research Center Lewis Research Center NASA USA

A comprehensive automation design is being developed for Space Station Freedom's electric power system. A joint effort between NASA's Office of Aeronautics and Space technology and NASA's Office of Space Station Freedom, it strives to increase station productivity by applying expert systems and conventional algorithms to automate power system operation. An integrated approach to the power system command and control problem is defined and used to direct technology development in: diagnosis, security monitoring and analysis, battery management, and cooperative problem-solving for resource allocation. The prototype automated power system is developed using simulations and test-beds.

关键词： Energy management Automatic control Space stations Space technology power system simulation power system security power system management Productivity power system analysis computing Automation

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OPTIMUM DESIGN OF VERTICAL power MOSFET WITH THICK DRAIN OXIDE.

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Electronics and Communications in Japan, Part II: Electronics (English translation of Denshi Tsushin Gakkai Ronbunshi) 1987年第8期70卷 68-79页

作者： Ueda, Daisuke Takagi, Hiromitsu Kano, Gota Kuroda, Keiji Member Semiconductor Research Laboratory Matsushita Electronics Corporation Takatsuki Japan 569 Diasuke Ueda received B.S. and M.S. in Electronics Engineering from Kyushu Institute of Technology in 1977 and 1979 respectively. He joined Matsushita Electric in 1979. He has been engaged in the development of power FET's. Nonmember Keiji Kuroda received B.S. in Physics and M.S. in Nuclear Engineering from Kyoto University in 1978 and 1980 respectively. Joined Matsushita Electric in 1980. Engaged in developments of semiconductor CAD software and device simulation. Hiromitsu Takagi received B.S. and M.S. in Electronics Engineering from Osaka-Furitsu university in 1971 and 1973 respectively. Joined Matsushita Electric in 1973. Engaged in research of functional IC devices compound IC devices and ultra-high density IC devices. Ph.D. Kyoto Research Laboratory Matsushita Electronics Corporation Kyoto Japan 601 Gota Kano received B.S. in Electrical Engineering from Osaka University in 1961 and joined Matsushita Electric. Engaged in R&D of high-speed bipolar discrete devices high-speed bipolar ICs GaAs FET/ICs and semiconductor lasers. Ph.D. and author of Semiconductor Devices and Applications and Recent Compound Semiconductor Handbook.

The optimum design of a vertical power MOSFET with thick drain oxide is described, taking into account such dc characteristics as the on-resistance and breakdown voltage. Introducing the empirical ideality of the edge-termination which determines the breakdown voltage of the device, the optimum doping density and thickness of the epitaxial layer have been determined to minimize the on-resistance. Using two-dimensional simulation to evaluate the optimum design of the device, the thickness of the drain oxide and the relationship between the layout pitch and the product of on-resistance and active area have been determined.

关键词： SEMICONDUCTOR DEVICES, MOSFET

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A COMPUTER INTEGRATED engineering SYSTEM FOR DESIGN AND LIFE-CYCLE MANAGEMENT

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NAVAL ENGINEERS JOURNAL 1986年第3期98卷 115-121页

作者： NICKODEMUS, GH YANUS, ID Irwin D. Yanusgraduated from the University of Pennsylvania with a bachelor's degree in arts and science in 1960 and a bachelor of science degree in mechanical engineering in 1961. In 1963 he received a master of science degree in mechanical engineering from Carnegie-Mellon University. Mr. Yanus is presently the manager of naval systems engineering in the Computer Aided Engineering Department of the Plant Engineering Division of Westinghouse Electric Corporation. His prior experience includes 19 years at the Bettis Atomic Power Laboratory where he performed assignments of increasing responsibility in design analysis development and procurement of nuclear reactor components for naval applications. As the manager of reactor mechanical design he was responsible for the mechanical design of theNimitzclass reactor components and control drive mechanism technology development. Mr. Yanus is a member of the American Society of Mechanical Engineers and the Society of Naval Architects and Marine Engineers. Glen H. Nickodemusgraduated from Michigan State University in 1964 with a bachelor of science degree in civil engineering. He joined the Pittsburgh-Des Moines Corporation in July of the same year. A master of science degree in civil engineering was obtained from Carnegie-Mellon University in 1973. In 1969 Mr. Nickodemus joined the Advanced Reactors Division of the Westinghouse Electric Corporation where he performed design and structural analysis functions for the development of the Fast Flux Test Facility and Clinch River Breeder Reactor Plant (CRBRP). As manager of CRBRP reactor engineering stress analysis he was responsible for the reactor vessel internals closure head control rod drivelines and miscellaneous guard vessels and head access area components. He is currently the manager of software development for the Computer Aided Engineering Department of the Plant Engineering Division. Mr. Nickodemus is a member of the American Society of Mechanical Engineers and is a registered professional engineer in Penn

This paper describes a computer integrated engineering system for design and life cycle management of weapons systems, ships and other multidisciplined systems. All engineering data are stored in a central engineering database. Individual application databases define and process information necessary for specific discipline evaluations. Interface modules between the application databases and the engineering database ensure that the entered data are complete, consistent, compatible, and in compliance with requirements. Conflicts are immediately identified and efficiently resolved. Implementation of the system improves design quality and reduces costs by minimizing the number of design iterations, reducing the effort to implement changes, providing effective storage and retrieval, and reducing the need for ship checks prior to modifications and alterations.

关键词： MILITARY engineering

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Web Information Systems and Mining 1

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丛书名： Lecture Notes in Computer Science

1000年

作者： Zhiguo Gong Xiangfeng Luo Junjie Chen Jingsheng Lei Fu Lee Wang

ISBN: (数字)9783642239717

ISBN: (纸本)9783642239700

The two-volume set LNCS 6987 and LNCS 6988 constitutes the refereed proceedings of the International Conference on Web Information Systems and Mining, WISM 2011, held in Taiyuan, China, in September 2011. The 112 revised full papers presented were carefully reviewed and selected from 472 submissions. The first volume includes 56 papers organized in the following topical sections: applications on Web information systems; applications of Web mining; distributed systems; e-government and e-commerce; geographic information systems; information security; and intelligent networked systems.

关键词： Information Systems Applications (incl. Internet) Information Storage and Retrieval Database Management software engineering Data Mining and Knowledge Discovery Multimedia Information Systems

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Proceedings of the 1st Electrical Artificial Intelligence Conference, Volume 2 1

Proceedings of the 1st Electrical Artificial Intelligence Co...

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丛书名： Lecture Notes in Electrical engineering

1000年

作者： Ronghai Qu Zhengxiang Song Zhiming Ding Gang Mu Rui Xiong Li Han

ISBN: (数字)9789819640638

ISBN: (纸本)9789819640621;9789819640652

This book is the second volume of proceedings of the 1st Electrical Artificial Intelligence Conference (EAIC 2024). Artificial intelligence and low-carbon economy are two vibrant research fields in the world today. To achieve the goal of carbon neutrality not only signifies a significant transformation in the economic growth mode and a profound adjustment of energy systems but also has equally significant implications for the global economic and social transformation. In the wave of the rapid development of digital economy, artificial intelligence has become an important driving force for promoting high-quality economic and social development. In the path to the “Dual Carbon” goals, which are the “Peak Carbon Dioxide Emissions” goal and the “Carbon Neutrality” goal, artificial intelligence will play an important role especially in energy conservation and carbon reduction in the electrical field, which is worthy of in-depth exploration and research. In order to promote the deep integration of the electrical engineering and artificial intelligence, successfully achieve the "dual carbon" goals, and promote green, low-carbon, and high-quality development, the China Electrotechnical Society and relevant units jointly held the 1st Electrical Artificial Intelligence Conference in Nanjing, China, during the December 6–8, 2024. The conference invited well-known experts with significant influence in the fields of electrical engineering and artificial intelligence to jointly explore the application of artificial intelligence in the optimization design, fault diagnosis, intelligent control, and optimized operation of electrical equipment, promote the integration of artificial intelligence innovations and various application scenarios, and actively lead the trend of technological innovation. This book is not only a valuable summary of the new developments in the field, but also a useful guideline for the researchers, engineers, and graduate students.

关键词： Electrical engineering Artificial Intelligence Energy Systems power Electronics, Electrical Machines and Networks

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Proceedings of the 1st Electrical Artificial Intelligence Conference, Volume 1 1

Proceedings of the 1st Electrical Artificial Intelligence Co...

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丛书名： Lecture Notes in Electrical engineering

1000年

作者： Ronghai Qu Zhengxiang Song Zhiming Ding Gang Mu Rui Xiong Li Han

ISBN: (数字)9789819648566

ISBN: (纸本)9789819648559;9789819648580

This open access book is the first volume of proceedings of the 1st Electrical Artificial Intelligence Conference (EAIC 2024). Artificial intelligence and low-carbon economy are two vibrant research fields in the world today. To achieve the goal of carbon neutrality not only signifies a significant transformation in the economic growth mode and a profound adjustment of energy systems but also has equally significant implications for the global economic and social transformation. In the wave of the rapid development of digital economy, artificial intelligence has become an important driving force for promoting high-quality economic and social development. In the path to the “dual carbon” goals, which are the “peak carbon dioxide emissions” goal and the “carbon neutrality” goal, artificial intelligence will play an important role, especially in energy conservation and carbon reduction in the electrical field, which is worthy of in-depth exploration and research. In order to promote the deep integration of the electrical engineering and artificial intelligence, successfully achieve the "dual carbon" goals, and promote green, low-carbon, and high-quality development, the China Electrotechnical Society and relevant units jointly held the 1st Electrical Artificial Intelligence Conference in Nanjing, China during the December 6–8, 2024. The conference invited well-known experts with significant influence in the fields of electrical engineering and artificial intelligence to jointly explore the application of artificial intelligence in the optimization design, fault diagnosis, intelligent control, and optimized operation of electrical equipment, promote the integration of artificial intelligence innovations and various application scenarios, and actively lead the trend of technological innovation.

关键词： Electrical engineering Artificial Intelligence Energy Systems power Electronics, Electrical Machines and Networks

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