Industry Applications Conference, 1996. Thirty-First IAS Annual Meeting, IAS '96., Conference Record of the 1996 IEEE

6-10 Oct. 1996

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  • Conference Record of the 1996 IEEE Industry Applications Conference Thirty-First IAS Annual Meeting

    Publication Year: 1996, Page(s):i - xxxiv
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    Freely Available from IEEE
  • Development of medical mask utilizing electrostatic gradient force

    Publication Year: 1996, Page(s):2044 - 2047
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (300 KB)

    First Page of the Article
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  • Conference Author Index

    Publication Year: 1996, Page(s):2585 - 2589
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  • A voltage sag study in a large industrial distribution system

    Publication Year: 1996, Page(s):2372 - 2377 vol.4
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (380 KB)

    The method of fault positions has been used to study the post-fault voltage sags in the supply to a large chemical industry plant. The main concern is faults in the on-site distribution systems. The during-fault and post-fault voltages have been simulated by using the PSCAD/EMTDC package. A comparison with a measured sag has been made, showing good agreement. The simulation results taught us that ... View full abstract»

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  • Thermionic arc breakdown

    Publication Year: 1996, Page(s):2162 - 2168 vol.4
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    A model for thermionically induced breakdown is developed which predicts the voltage levels experienced in low-voltage discharges. The scheme requires the establishment of a continuum of electron emission across the primary discharge gap but the effective discharge initiation length must be small. The source of electrons must initially be independent of the discharge itself, being activated prior ... View full abstract»

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  • The phenomenon of electrode polarization in dielectrophoresis

    Publication Year: 1996, Page(s):2008 - 2014 vol.4
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    A theoretical model is set up to examine the question: are the results of dielectrophoretic measurements influenced by the frequency response of the diffuse double layer in the low frequency region (<100 Hz)? Within the constraints or the model and assumptions made in this paper our results show that under the typical electrolyte concentrations that are used in experiments the frequency respons... View full abstract»

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  • Voltage sag coordination for reliable plant operation

    Publication Year: 1996, Page(s):2366 - 2371 vol.4
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (680 KB)

    This paper offers techniques to coordinate sensitive electric equipment with predicted or measured voltage sag characteristics. The techniques far predicting voltage sag characteristics have already been developed and proposed for Chapter 9 of the Gold Book. This paper describes the coordination techniques and another section that are planned for inclusion in Chapter 9. The techniques provide a di... View full abstract»

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  • Analysis of arc spot ignition on cold lamp electrodes

    Publication Year: 1996, Page(s):2155 - 2161 vol.4
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1208 KB)

    The ignition of arc discharges in lamps does not proceed straightforwardly in many cases. The discharge remains in the state of a glow discharge since the formation of an arc spot at the cold cathode does not take place. To investigate the arc spot ignition on cold cathodes under defined conditions, a special experimental setup was developed. An arc ignited between horn electrodes in a clean argon... View full abstract»

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  • Application of travelling wave field technique for handling cohesive powders

    Publication Year: 1996, Page(s):2002 - 2007 vol.4
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (584 KB)

    The main objective of this research is to study the transport phenomena of cohesive powders using travelling wave field technique. This technique has been successfully utilised for transporting and separating noncohesive materials in many applications. In the literature only a limited attention has been paid to the transport of cohesive powder materials using this technique. Cohesive powders are g... View full abstract»

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  • New control strategies for longwall armored face conveyors

    Publication Year: 1996, Page(s):2520 - 2527 vol.4
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (744 KB)

    This paper investigates a new control approach for longwall armoured face conveyors (AFCs) using variable speed induction motor drives (VSDs). Traditionally AFCs have used fixed speed or two speed motors, with various mechanical solutions employed to try and solve the problems that this causes. The VSD approach to the control problem promises to solve all the significant problems associated with t... View full abstract»

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  • Navigation and control of continuous mining systems for coal mining

    Publication Year: 1996, Page(s):2473 - 2479 vol.4
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (700 KB)

    One of the US Department of Energy, Pittsburgh Research Center (PRC) mine safety and health research programs is developing technology that will allow remote-controlled operation of mechanized equipment normally used in underground room-and-pillar coal mining, thereby permitting workers to be located away from the hazardous coal extraction area (the face). As part of this program, advanced machine... View full abstract»

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  • Transition engineering

    Publication Year: 1996, Page(s):2557 - 2562 vol.4
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (524 KB)

    To solve the problems of upgrading existing systems and processes in various industries from concept and design to installation and startup, methods have been developed and techniques created to minimize the interruptions, outages and downtime associated with these upgrades. In some cases, no outages are experienced or needed because of these transition engineering techniques. Through the use of d... View full abstract»

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  • Value-based distribution system reliability planning

    Publication Year: 1996, Page(s):2359 - 2365 vol.4
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (628 KB)

    Society is becoming increasingly dependent on a cost-effective reliable electric power supply. Unreliable electric power supplies can be extremely costly to electric utilities and their customers. Predictive reliability assessment combines historical outage data and mathematical models to estimate the performance of specific network and system configurations [e.g., IEEE Std. 493-1990]. This paper ... View full abstract»

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  • Analysis and design of current-fed push-pull resonant inverters-cold cathode fluorescent lamp drivers

    Publication Year: 1996, Page(s):2149 - 2152 vol.4
    Cited by:  Papers (19)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (280 KB)

    The current-fed push-pull resonant inverter provides a good solution for cold cathode fluorescent lamp (CCFL) drivers. However, to implement such a circuit, effective analysis and design procedures are needed. This paper presents a design-oriented analysis for the current-fed push-pull resonant inverter for CCFL applications. Approximate analysis techniques yield useful equations for the resonant ... View full abstract»

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  • Direct electrostatic levitation and propulsion of silicon wafer

    Publication Year: 1996, Page(s):1994 - 2001 vol.4
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (732 KB)

    A new type of contact-less wafer manipulator, featuring “direct electrostatic levitation and propulsion of silicon wafer” (DELP-SW), has been successfully developed. The novel aspect of this manipulator is that a silicon wafer can be directly levitated and driven via electrostatic forces. In this paper, a brief review of basic principles is presented. This is followed by a description ... View full abstract»

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  • An energy conversion and integration methodology for end-user groups in deep level mines

    Publication Year: 1996, Page(s):2492 - 2498 vol.4
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (552 KB)

    Energy models are powerful tools for studying energy problems. A model that represents an end-user group very accurately, can be very complicated. The purpose of this paper is to show how energy conversion models that represent end-user groups in a deep level mine with an acceptable accuracy, without being too complicated or seating unacceptable errors, are created. Simplifying assumptions are mad... View full abstract»

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  • Linear synchronous motor propelled hoists for mining applications

    Publication Year: 1996, Page(s):2514 - 2519 vol.4
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (508 KB)

    The idea of using linear synchronous motors (LSMs) to propel ropeless elevators is extended to the South African mining industry, where ultra-deep shafts are to be sunk to mine at depth of 4000 m and greater. A small prototype is designed and constructed to test the feasibility of the proposed hoisting system, and a position and speed control algorithm is implemented to show that accurate control ... View full abstract»

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  • Upgrading the protection of industrial-sized generators using digital technology

    Publication Year: 1996, Page(s):2283 - 2290 vol.4
    Cited by:  Patents (1)
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    This paper presents the reasons why industrial generator owners should consider upgrading the electrical protection of their generators to meet today's standards. It specifically outlines the risks assumed in five functional areas where 20+ year old generator protection is inadequate. These areas include: negative sequence (unbalanced current) protection, sensitive stator ground fault protection, ... View full abstract»

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  • A guidance sensor for continuous mine haulage

    Publication Year: 1996, Page(s):2465 - 2472 vol.4
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (736 KB)

    A major research program to reduce hazard exposure of miners with computer-assisted mining equipment was initiated by the US Bureau of Mines. One application involves the manual process of extracting and hauling coal where operators, in the tight confines of a mine, can be struck or caught by mobile machinery. The approach to remedy this problem uses a guidance system on the haulage equipment so t... View full abstract»

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  • Particle trajectories and collection efficiency of submicron particles on a charged spherical collector

    Publication Year: 1996, Page(s):2036 - 2047 vol.4
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (652 KB)

    The paper presents a numerical algorithm for simulating the trajectories of charged dust particles moving horizontally in the vicinity of free falling, oppositely charged liquid droplets. The trajectories are calculated in three-dimensional space which shows limiting collision trajectories of the particles and the precipitation space to be determined. The air drag, electrical and gravitational for... View full abstract»

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  • Real time simulator for the runout table of hot strip mills

    Publication Year: 1996, Page(s):2547 - 2554 vol.4
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (652 KB)

    In a hot strip mill, the strip is cooled by spraying water from top and bottom on the runout table (ROT), before the strip is coiled. The desired mechanical properties and metallurgical structure of the strip is achieved by controlling the cooling rate and temperature of the strip on the ROT. This paper describes a novel real time simulator for ROTs. The simulator has been implemented in parallel ... View full abstract»

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  • Test results from high intensity discharge lamps with current supplied at 50 Hz, 400 Hz and modulated between 15 and 35 kHz

    Publication Year: 1996, Page(s):2225 - 2230 vol.4
    Cited by:  Papers (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (516 KB)

    In this paper, test results on commercial available high pressure sodium (HPS) and metal halide lamps supplied with current at different frequencies are discussed. These results are useful for discharge lamps with electronic ballasts. These lamps show acoustic resonances, so that certain frequencies must be avoided in the supply current. Measurements were carried out at input power and light outpu... View full abstract»

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  • An integrated design approach of hybrid compensation systems

    Publication Year: 1996, Page(s):2348 - 2355 vol.4
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (612 KB)

    This paper describes an integrated design approach of hybrid compensation systems, including passive filters and thyristor-switched capacitors and inductors. The approach, which is valid even for nonlinear and unbalanced loads fed by unsymmetrical and distorted supply voltages, relies on a load identification method by means of parallel passive impedances. Applying the same method also to passive ... View full abstract»

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  • A micromachined DEP cell filtration device

    Publication Year: 1996, Page(s):1932 - 1939 vol.4
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (684 KB)

    Perfusion culturing of mammalian cells is both a cost effective and efficient method for maintaining high density cultures for the production of important therapeutic proteins. Continuous operation of such cultures requires the presence of a cell separation device capable of retaining viable cells while allowing dead cells to be removed from the reactor. This paper examines the development of a mi... View full abstract»

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  • Single-stage dimmable electronic ballast with unity power factor

    Publication Year: 1996, Page(s):2141 - 2148 vol.4
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (624 KB)

    A new single-stage dimmable electronic ballast with unity power factor is introduced in this paper. The proposed circuit which is the integration of a buck-boost power converter and a half-bridge series resonant parallel loaded inverter is developed by substituting the synchronous switch for the active switches in the two-stage power converter. With the plasma model for the lamp, the analysis of t... View full abstract»

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