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IEEE International Conference on Industrial Technology (ICIT)

作者： A.P. Tiwari B. Bandyopadhyay Bhabha Atomic Research Centre Reactor Control System Design Section Mumbai India Systems and Control Engineering Indian Institute of Technology Bombay Mumbai India

The paper presents the design of spatial control system of a large pressurized heavy water reactor (PHWR) with the constraint that the closed loop system be stable even if one output sensor has failed. Linear state models are obtained corresponding to the normal operating condition and different failure modes of the reactor. Each model is found to possess two time scale property. Application of a standard singular perturbation approach decouples the fast varying modes which are ignored to eliminate the stiffness. Thus a reduced model is obtained for each operating mode of the reactor. Convex programming is used to search for an output injection gain which stabilizes all reduced models simultaneously. This output injection gain is then realized simultaneously in all operating modes by a controller based on periodic output feedback.

关键词： Fault tolerant systems control systems Inductors Power distribution Power system modeling Output feedback State feedback Sensor systems Fission reactors Detectors

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A design method of an adaptive PI controller for a positioning mechanism with stand

A design method of an adaptive PI controller for a positioni...

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IEEE Conference on control Technology and Applications (CCTA)

作者： K. Sato K. Watanabe H. Honda R. Oguro Department of Advanced Systems Control Engineering Graduate School of Saga University Saga Japan Research Laboratory Motor Drives Research Section Yaskawa Electric Corporation Fukuoka Japan

We consider an adaptive PI controller for a positioning mechanism with stand. To control the position of a moving table with vibration suppression of the stand, derivation of the motion equation of the whole system and identification of the physical parameters are very important. However, in previous researches, conventional PI control methods have been applied to the positioning control and the design parameters depend heavily on the physical parameters of the controlled system. To cope with this problem, we apply the adaptive PI control strategy to that system and show the effectiveness of our method, compared to the conventional strategy.

关键词： Design methodology Programmable control Adaptive control Pi control Fasteners Vibration control Gears Couplings Motion control Equations

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Open-distributed SCADA system for the okutataragi power station and substation

Open-distributed SCADA system for the okutataragi power stat...

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Waterpower Conference 1999 - Hydro's Future: Technology, Markets, and Policy, Waterpower 1999

作者： Nishi, Minori Yamamoto, Jun Kokado, Toshitsugu Ohga, Yukiharu Uchida, Tomonobu Tokai District Office Kansai Electric Powei Co.Inc. 27-14 2-chome Izumi Higashi-ku Nagoya 46l-8540 Japan New Business Development Dept Kansai Tclecornmurucalion Technology Co. Ltd. Office of Human Resource Development l-9-3-chonie. Awajimachi yuou-ku Osaka 541-0047 Japan Hydro Section Office of Power System Engineering and Operation Kansai Electric Power Co. Inc. 3-22 3-chome Nakanoshima Kita-ku Osaka 530-8270 Japan Power and Industrial Systems R and D Division Hitachi Ltd. 7-2-1 Omika-cho Hitachi-shi Ibaraki-ken 319-1221 Japan Power Systems Information and Control Division Hiiachi Ltd. 6 Kanda-Surugadai 4-chome Chiyoda-ku Tokyo 101-8010 Japan

ISBN: (纸本)0784404402

The total supervisory control and data acquisition (SCADA) system has been developed for the Okutataragi Pumped Storage Power Station and its substation. The system applies an open distributed client-server computer architecture and the state-of-the-art man-machine devices, such as a large mimic displays and CRTs with mouse operation. It also includes the following operator support functions: a fault tree based operator guidance function, a bearing temperature prediction function, and a vibration monitoring function. The SCADA system has been put into commercial operation where its superior capabilities have allowed the entire power station and its substation to be run by only two operators. Copyright © 2014 ASCE.

关键词： SCADA systems

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CVT Ratio Optimization for Minimal System Losses in Passenger Cars *

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IFAC Proceedings Volumes 1998年第1期31卷 125-130页

作者： M.A. Mussaeus A.F.A. Serrarens F.E. Veldpaus Eindhoven University of Technology Fac. of Mechanical Engineering Section Systems & Control P.O. Box 513 5600 MB Eindhoven The Netherlands

In this paper, a synergetic approach is presented towards the minimization of driveline losses, without adapting the hardware of the subsystems. Instead, setpoints for engine and transmission ratio are generated by numerical optimization of system efficiency. This strategy will be applied to a driveline model of a passenger car consisting of an internal combustion engine, a torque converter, a Continuously Variable Transmission (CVT), a final reduction gear and a differential gear. By simulations and experiments it is shown that the strategy, implemented in a Driveline Management System (DLM), results in considerable fuel savings.

关键词： Automotive control Continuously variable transmission Engine efficiency Management systems Minimization

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Batch size optimization of a furnace and pre-clean area by using dynamic simulations

Batch size optimization of a furnace and pre-clean area by u...

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IEEE/SEMI Conference and Workshop on Advanced Semiconductor Manufacturing

作者： H.J.A. Rulkens E.J.J. Van Campen J. Van Herk J.E. Rooda Production control department Philips Semiconductors MOS4YOU Netherlands Furnace Section Philips Semiconductors MOS4YOU Netherlands Section Systems Engineering Eindhovan University of Technology Netherlands

A dynamic simulation model is a powerful and fast tool to analyze existing production situations and to optimize the performance by evaluating alternative scheduling rules. This paper presents such an analysis and optimization for a furnace and pre-clean area of a wafer fab. The design of a dynamic model is described. Furthermore, experiments are described that illustrate the influence of a minimum batch size scheduling rule. For a specific production situation, the minimum batch sizes per furnace process which optimize cycle time are determined.

关键词： Furnaces Semiconductor device modeling Production Dynamic scheduling Process design Analytical models Performance analysis Dispatching Customer satisfaction Fabrication

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Indoor and outdoor frequency measurements for MM-waves in the range of 60 GHz

Indoor and outdoor frequency measurements for MM-waves in th...

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IEEE Conference on Vehicular Technology (VTC)

作者： D.M. Matic H. Harada R. Prasad Telecommunication & Traffic-Control Systems Group Department of Electrical Engineering Delft University of Technnology Delft Netherlands Broadband mobile communication section Yokosuka Radio Communications research centre Communication Research Laboratory Ministry of Posts and Telecommunications Japan

Using a spectrum analyzer and synthesized signal generator, several measurements for the frequency-domain characterization of the radio channel in the 60 GHz band were performed. In the experiments, a carrier wave (CW) was swept with a constant amplitude across the 100 MHz band, centered around 59.9 GHz. The channel frequency response was measured at the receiver side. The results can be used for the design of an OFDM (orthogonal frequency division multiplex) system. The measurement environments were a corridor and a big college room in a high-rise office building (indoor) and a parking site and a grassfield at the side of that building (outdoor). The spectrum samples were taken in each of the environments. From such samples, it is possible to calculate the Rice parameter k and the path loss coefficients. It was necessary to the develop an appropriate measurement analysis, stemming from the fact that the spectrum analyzer gives no information on the phase, only amplitude. Measurement analysis method and results are explained.

关键词： Frequency measurement Spectral analysis Buildings Signal synthesis Signal generators Frequency domain analysis Performance evaluation Frequency response Receivers OFDM

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Computer-controlled equipment testing: Speed, accuracy and improved analysis

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NAVAL ENGINEERS JOURNAL 1998年第1期110卷 207-215页

作者： Smith, JJ Greene, WC John J. Smith is a senior field engineer with the Electrmics Systems Division (ESD) of TRACOR System Technologies Inc. As the technical supervisor fm the Impact and Feasibility Studies group of the E nginemang Department he provides engineering support to the Ships Communication Systems Operation Branch Naval Air Warfare Center Aircraft Division Patuxent River St. Inigoes Maryland. This support entails the integration of radio communication systems on USS Arleigh Burke (DDG 51)-class AEGIS destrqvers and special engineering projects. During 23 years of Naval service as an electronics technician he sewed as electronics division officer for the repair division (R-4) on board USS Ghore (AS IS) homeported in La Maddalena Sardinia. His last duty station was NAVCOMSTA Roosevelt Road Puerto Rico where he sewed as muster chief-in-charge of electronic communications repair the island-wide communications quality control chiel the contract administrator to the operations and maintenance contractor supporting Mystic Star transmitter and receiver facilities for Air Fme One communications the Naval transmitter station and 16 interconnecting remote mimowave sites. Wilhemina C. Greene is a Supervisory Electronics Engineer with the Combatant Engineering and Integration Section at NAWCAD. As the team leader directs the effots of Civilian and contractors personnel responsible for delivering a fully integrated and tested Radio Communication Systems for surfme cmnbatant ships. The team also pvovida the Nay's only system level training on RCS for all AEGIS Pre-Communits. As part ofthis eflort she is responsible for the operation and maintenance of the Satellite Production Test Centq a facility housing the RCS test beds. Ms. Greene has over 20 years of government service 13 years on the AEGIS RCS program. She has a BSEE degree from Tennessee State University.

As shipboard radio communication systems (RCSs) become more complex and crew size continues to be reduced, the requirement for an automated, condition-based maintenance system is imperative. Personal computers can be programmed to provide full equipment testing that is capable of digital interface as well as automated and semi-automated testing of equipment that is not buss-controllable. Some of the advantages of computer-controlled equipment testing (CCET) include increased accuracy repeatability, and data-collection capability for in-depth analysis. However, the paramount advantage of CCET is speed. This paper will describe various methods of remote testing, including using a LAN, the Internet, and the telephone system. It will detail application software developed to test the Aegis-class destroyers' RCS equipment. This paper examines CCET as it is presently applied to the Aegis Board of Inspection and Survey (INSURV) support program. Additionally, the condition-based maintenance (CBM) application developed for over-the-air system testing of the Navy's UHF line-of-sight (LOS) system installed on the USS Yorktown (CG 48) as part of the Smart Ship project will be described. This paper will also describe CCET methods to use charged-coupled device (CCD) miniature cameras to read analog meters, gauges, or entire gauge boards.

关键词： Electronic ship equipment

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A simple adaptive scheme for indirect field orientation of an induction motor

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EUROPEAN TRANSACTIONS ON ELECTRICAL POWER 1997年第4期7卷 243-249页

作者： Branco, PJC [?]Paulo Jose da Costa Branco (1965) received the B.Sc. and M.Sc. degrees in Electrical Engineering from the Universidade Federal do Rio de Janeiro (UFRJ) Rio de Janeiro/Bnsil in 1988 and 1991 respectively. Since 1992 he has been an Assistant at the Department of Electrical and Computing Engineering Section of Electrical Machines and Power Electronics in the Instituto Superior Tecnico (I.S.T.). He is currently working toward the Ph.D. degree in Electrical Engineering in an application of fuzzy learning theory in the design of “intelligent” electromechanica1 systems. His majorfieldsof interest are Control of Electrical Drives mainly their rncdellization and control using fuzzy logic and neural networks energy conservation and non-linear dynamic systems. In April I992 he joined at Centro de Automictica of Universidade Tecnica de Lisboa (CAUTL) as a researchassistant and in 1993 joined to the Mechatronics Laboratory in the same university. (Instituto Superior TCcnico (I.S.T.) Department of Electrical and Computing Engineering. Section of Electrical Machines and Power Electronics Lisboflortugal Phone: +35 I 1/8417432 Fax: +3511/848 29 87 E-mail: pbranco@alfa.ist.utl.pt)

A self-adaptive scheme is described for automatically tracking the temperature and saturation-dependent rotor time constant T-r in indirect vector control. This method is based on a monitoring signal injected into the process. A cross-correlation function between the monitoring signal and the speed error indicates the T-r changes in direction (increase or decrease) and magnitude. The proposed identification algorithm presents unique characteristics: it does not use current or voltage sensors;it is not motor-parameter dependent;the amplitude of the monitoring signal can be reduced but with an increase on the speed-error sensibility to control interference in drive's performance and it works either on steady-and dynamic transient-state. it will need some load to operate but this condition is satisfied in all practical cases. Tests were conducted with a 1.2 kW four-quadrant AC drive. The adaptive indirect vector-control was implemented in a microcomputer with the motor supplied by a voltage-source inverter with current control using IGBT Experimental and simulated results using this adaptive digital scheme for different loads and values of model T-r(representing a detuned operation) are presented showing good performances.

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Ship habitability - Preparing for the 21st century

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NAVAL ENGINEERS JOURNAL 1997年第6期109卷 21-27页

作者： Meere, EP Grieco, L Edward P. Meere:works in the Arrangements Division of the NavSea Systems Command (SEA 03H1) and has been the Navy Habitability Program Manager for the past three years. He received a Bachelor of Science in Engineering Science from Illinois Institute of Technology in 1966. He received a Masters of Business Administration from the American University in 1977. His experience to date includes: Mathematics teacher at Prince Georges Community College for 7 years 10 years as Branch Head for Carrier and Amphibious Arrangements Project Engineer for Underway Replenishment Equipment responsible for the concept and development of the One Man Control Station. Louis R. Grieco:is a Supervisory Mechanical Engineer in the Habitability Branch of the Hull and Deck Machinery Department at the Naval Surface Warfare Center Carderock Division Philadelphia where he has been employed since 1971. He received a Bachelor of Science in Mechanical Engineering degree from Drexel University in 1979. His experience to date includes trade design and combat systems assignments at Philadelphia Naval Shipyard from 1960 to 1971 In Service Engineering Section and Branch Head for cargo/ weapons elevators conveyors torpedo handling systems habitability equipment and underway replenishment equipment and Life Cycle Manager for habitability systems. He also serves as a member of the Industrial Advisory Board at Temple University Philadelphia PA.

This paper discusses the problems identified in a FY 1995 fleet habitability survey. The survey questioned the fleet on the quality of shipboard living and working conditions and identified shortfalls in berthing, sanitary spaces, and food service systems that influence crew morale, safety, and ultimately mission effectiveness. Existing habitability programs, new initiatives and responses to the survey problems, plus a few quality of life ideas for the 21st century, are outlined.

关键词： Warships

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Typhon: A weapon system ahead of its time

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NAVAL ENGINEERS JOURNAL 1997年第4期109卷 53-62页

作者： Gussow, M Milton Gussow:is a principal staff engineer at The Johns Hopkins University Applied Physics Laboratory where he is involved in joint warfare analysis and engineering systems assessment. He is a distinguished graduate of the U.S. Naval Academy (1949) and holds a B.S.E.E. degree from the Naval Postgraduate School (1956) and an M.S. degree from M.I. T. (1957). He retired in 1967 as a commander in the US. Navy having served in surface combatants and as a weapons engineering specialist. He had tours at the Bureau of Naval Weapons as section head of the Typhon Weapon Control System Office of Naval Research as the Guided Missile and Astronautics officer and at headquarters Naval Material Command as the ordnance logistics officer He was senior vice president for product development at the McGraw-Hill Continuing Education center Mr Gussow is the author of a McGraw- Hill textbook on basic electrical engineering circuits and techniques. He has taught courses in electrical engineering and operations research at The George Washington University The American University and the School of Advanced international Studies at TheJohns Hopkins University. Mr Gussow is the director of the Systems Assessment Group for the Strike Surface and Antiair Warfare Committee of the National Security Industrial Association (NSIA). He is the author of more than seventy-five technical papers and monographs and his interests include multiwarfare analysis wargaming information management and international relations. He is a member of Sigma Zi Sigma Gamma Tau ASNE and IEEE. Mr. Gussow is listed in Who's Who in Science and Engineering and in American Education for 1996–1997.

A popular question posed is, ''Where did the Aegis weapon system come from?'' Like any system, it had to have a beginning. This article purports to describe a predecessor system called Typhon, that contributed essentially to the successful development of Aegis. The story began in the late 1950s. Typhon was conceived by the Navy as an integrated weapon system to defeat the air threats of the 1970s. It consisted of: 1) a single radar system for search, acquisition, tracking, and missile guidance with multiple beams and instantaneous beam switching, able to operate in the presence of heavy countermeasures;2) a single weapon direction system to handle two complementary missile types, capable of handling multiple intercepts and integrated with the Naval Tactical Data System/Combat Information Center;3) a long-range and medium-range missile;and 4) launching systems for missiles. The heart of the system was the multifunction Typhon radar, which represented a quantum leap in beam forming and switching and signal processing techniques. Contract work for the development, fabrication, and test of the Typhon radar and missile began in 1960 and lasted until 1965. This article recounts the personal experiences of the author during those exciting and innovative years in the development of Typhon.

关键词： Marine missiles

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