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Industrial Electronics, 2002. ISIE 2002. Proceedings of the 2002 IEEE International Symposium on

2002

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Displaying Results 1 - 25 of 68
  • A new complex recurrent neural network equalizer for data communication

    Publication Year: 2002, Page(s):1271 - 1275 vol.4
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (511 KB)

    A new modified version called decision feedback complex recurrent neural network equalizer (DFCRNNE) is proposed with the study of complex recurrent neural network adaptive equalizer (CRNNE). Based on DFCRNNE, a modified real time recurrent learning (CRTRL) algorithm is developed. Simulation results show that DFCRNNE has better performance than the CRNNE based on traditional CRTRL algorithm in com... View full abstract»

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  • UPQC compensation strategy and design aimed at reducing losses

    Publication Year: 2002, Page(s):1264 - 1270 vol.4
    Cited by:  Papers (15)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (635 KB)

    After showing how the UPQC is able to-compensate for network voltage variations through different operating strategies, one such strategy is proposed whose aim is to limit the total losses of the device. An estimate was made of the extent of the losses of converters as a function of the DC section voltage and of the maximum injectable voltage from the injection transformer and, subsequently, with ... View full abstract»

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  • A 1.5 V CCII-based tunable oscillator for portable industrial applications

    Publication Year: 2002, Page(s):1341 - 1345 vol.4
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (428 KB)

    In this paper a low-voltage CCII-based tunable oscillator is presented. The circuit makes use of new first and second generation current conveyors, designed to operate at typical supply voltages as low as 1.5 V, the minimum being 1.2 V. SPICE simulations, performed by 0.5 μm CMOS process from ALCATEL-MIETEC, well confirm the theoretical analysis. In particular, CCI and CCII models have been tak... View full abstract»

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  • ESD in electronic equipment: coupling mechanisms and compliance testing

    Publication Year: 2002, Page(s):1382 - 1385 vol.4
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (412 KB)

    The paper analyses several ways for an electrostatic discharge (ESD) to produce an effect on electronic equipment. In particular, they are classified into direct and indirect coupling mechanisms, also following the standard rules for compliance testing. A direct coupling arises when the discharge occurs on the equipment enclosure or on cables, that penetrating the shield, lead the ESD current on P... View full abstract»

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  • Comparison of current control techniques for PWM rectifiers

    Publication Year: 2002, Page(s):1259 - 1263 vol.4
    Cited by:  Papers (12)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (426 KB)

    This paper presents current control techniques for three phase PWM rectifiers. A three different solutions for a current regulation techniques are presented. The synchronous PI current controller (CC) which becomes a standard solution in industrial applications is compared with two others techniques: resonant CC and artificial neural network based CC which can be an interesting alternative for cur... View full abstract»

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  • Challenges in mixed-signal integrated system design for industrial applications

    Publication Year: 2002, Page(s):1335 - 1340 vol.4
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (694 KB)

    This paper illustrates some difficult aspects of mixed-signal CMOS integrated circuit design. Limitations coming from coupling between digital and analog blocks are discussed., and a simple method to simulate the effects coming from nonideal biasing of different chip regions is presented. Experimental results on test chips validate the proposed approach. View full abstract»

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  • Comparison of direct current control techniques for a three-phase shunt active power filter

    Publication Year: 2002, Page(s):1217 - 1222 vol.4
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (395 KB)

    This paper deals with a comparative study of the performance of three direct current control techniques applied to a three-phase shunt active power filter. The three considered techniques are: (i) direct current control (DCC) based on a PI regulator; (ii) DCC based on a sliding mode control (SMC); and (iii) DCC based on a SMC combined with a one step ahead prediction (SMC-P). These three regulator... View full abstract»

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  • New supply chain-concept based on coupling point inventory planning

    Publication Year: 2002, Page(s):1358 - 1363 vol.4
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (629 KB)

    We propose a new supply chain concept based on coupling point inventory planning method. This method is used for repetitive products at the coupling point (CP), and is combined with the margin stock ratio. This method plans the formulaic necessary inventory under the demand fluctuation, and calculates the re-order quantity. The formulaic necessary inventory is planned by the lead-time of the suppl... View full abstract»

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  • Simplified evaluation of power bus resonances on fully populated high speed digital PCBs

    Publication Year: 2002, Page(s):1376 - 1381 vol.4
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (566 KB)

    The ever increasing clock rate and bandwidth of the digital signals, running on today's printed circuit boards, have forced more attention to be paid to study the resonances of the planes distributing the power to the active devices on the board. Simple simulation models have to be developed, so that no deep theoretical knowledge and costly simulation tools are asked of the designers for the analy... View full abstract»

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  • Practical considerations concerning the interleaved transition mode single-stage ballast

    Publication Year: 2002, Page(s):1065 - 1070 vol.4
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (648 KB)

    The aim of this paper is to present a novel single-stage interleaved ballast focusing on practical design aspects like: key current expression, overall losses, harmonic analysis of the differential-mode EMI current and preheating ballast function. A new preheating method is; also presented. A PSPICE model is used to perform the analysis. View full abstract»

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  • Evaluation of insulation systems for IGBT PWM inverter-fed low-voltage induction motors

    Publication Year: 2002, Page(s):1154 - 1159 vol.4
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (633 KB)

    The development of advantageous power electronic switching devices such as insulated gate bipolar transistors (IGBTs) has made it possible for the inverter to realize high frequency switching operation and the effective performance of pulse-width modulated (PWM) inverters for driving induction motors. On the other side, the high dv/dt of IGBT PWM inverters appears across the first few turns of win... View full abstract»

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  • Optimal modulation strategy for active front-end inverter feeding induction motors

    Publication Year: 2002, Page(s):1253 - 1258 vol.4
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (544 KB)

    Torque ripple in inverter fed induction motors is a critical problem if high switching frequency cannot be achieved because of the drive power rating or when switching losses must be kept low. In that case, the torque ripple minimisation should be one of the goals of the control strategies. The paper presents a PWM technique that can be used to minimise the steady state torque ripple of variable s... View full abstract»

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  • Electrodes' erosion in a liquid medium [US lithotriptor]

    Publication Year: 2002, Page(s):1289 - 1294 vol.4
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (532 KB)

    We seek by this work to tackle the problems of electrodes' durability of a lithotriptor, which is intended to break a renal calculus. These electrodes functioning in a liquid medium are made up of a composite material. However, in spite of their high prices, these electrodes bear only 3000 electric discharges corresponding to a net time utilization of approximately one hour. It is thus a question ... View full abstract»

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  • Author Index

    Publication Year: 2002, Page(s):1411 - 1417
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (336 KB)

    First Page of the Article
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  • Comparison of transient performance in a peak current-mode flyback converter

    Publication Year: 2002, Page(s):1049 - 1052 vol.4
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (370 KB)

    In this paper, the voltage regulation of a flyback converter under load transient conditions is investigated. First, the best regulation is found with an optimization algorithm which uses a cycle-by-cycle model. The predictions are then compared with the performance given by an optimized peak current-mode controlled converter. Simulation results are then provided to highlight the two different out... View full abstract»

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  • Low voltage current conveyor-based universal biquad filter

    Publication Year: 2002, Page(s):1331 - 1334 vol.4
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (369 KB)

    A 1.5 V-supply low-power consumption (1.4 mW) current-mode biquad filter using current conveyors as active elements is presented. The circuit shows one input and three different outputs, performing simultaneously low-pass, band-pass and high-pass filtering operation. The topology, which has all integrated elements with two grounded capacitors, shows low sensitivity and independent control of &omeg... View full abstract»

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  • Control method for active filters

    Publication Year: 2002, Page(s):1213 - 1216 vol.4
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (357 KB)

    A novel control method for power active filters is presented, which makes it possible to control the individual harmonics of the supply current with a closed loop without any mains voltage sensors. This method makes it possible to reduce the rating of active filters, and as a result, to reduce the cost of them, compared to the conventional control methods. View full abstract»

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  • DSP based high efficiency SR drive with precise speed control

    Publication Year: 2002, Page(s):1125 - 1130 vol.4
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (556 KB)

    The switched reluctance drive is known to provide good adjustable speed characteristics with high efficiency. However, higher torque ripple and lack of the precise speed control are drawbacks. These problems lie in the fact that SR drive is not operated with an mmf current specified for dwell angle and input voltage. To have precise speed control with a high efficiency drive, SIR drive has to cont... View full abstract»

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  • Decision-making strategies for decentralized production planning and scheduling

    Publication Year: 2002, Page(s):1352 - 1357 vol.4
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (505 KB)

    Decision-making strategies for production planning and scheduling problems in production systems which consist of several plants are studied. First, the authors formalize a way of representing a problem by introducing two kinds of models: a physical model and an information model. The physical model is used for simulating the process of manufacturing activities, while the information model is used... View full abstract»

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  • Measurements of spectral distribution of EMI emissions from adjustable speed drives of induction motors

    Publication Year: 2002, Page(s):1392 - 1397 vol.4
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (668 KB)

    Adjustable speed drives (ASDs) are widely used in office buildings, hospitals, private residences, and modern electric vehicles. The electromagnetic interference (EMI) noise produced by ASDs may affect proper operation of various electronic systems. At the University of Wyoming, an intensive study of EMI emissions from ASDs has been completed. A system under test (SUT) assembled for this work incl... View full abstract»

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  • An application of a simulation tool using a multifictional modeling method to logistics field

    Publication Year: 2002, Page(s):1370 - 1375 vol.4
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (628 KB)

    We developed a supply chain simulation tool using a multi-functional modeling method which easily defines a complicated whole supply chain in 5 kinds of partial model. This tool was applied to real supply chain data, and by the simulation ability of the tool was evaluated. View full abstract»

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  • A novel constant-frequency hysteresis current control of PFC converters

    Publication Year: 2002, Page(s):1059 - 1064 vol.4
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (541 KB)

    A novel adaptive-hysteresis (nearly) constant-frequency current control technique for single-phase switchmode rectifiers operating in continuous conduction mode is presented. It is based on cycle-by-cycle hysteresis calculator, which generates the hysteresis window that will keep the switching frequency in a very narrow band centered around programmed average value. The accuracy remains excellent,... View full abstract»

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  • Improved speed control for a casting drum drive

    Publication Year: 2002, Page(s):1136 - 1141 vol.4
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (828 KB)

    This paper addresses the issue of speed holding capability for a casting drum drive used in a high-quality film production process. The quality of the product is reduced by film profile variations, which are caused by changes in the casting drum speed, resulting from: forces transmitted through the film, mechanical imbalance of the drum, backlash in gearboxes, and torque ripple from the electric d... View full abstract»

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  • A position sensorless motion control system of reluctance synchronous motor with direct torque control

    Publication Year: 2002, Page(s):1148 - 1153 vol.4
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (639 KB)

    This paper presents an implementation of position sensorless motion control system of reluctance synchronous motor (RSM) drives with direct torque control (DTC) for a industrial servo drive system. The control system consists of stator flux observer, rotor position/speed/torque estimator, two hysteresis band controllers, an optimal switching look-up table, IGBT voltage source inverter, and TMS320C... View full abstract»

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  • A supercapacitor-based power conditioning system for power quality improvement and uninterruptible power supply

    Publication Year: 2002, Page(s):1247 - 1252 vol.4
    Cited by:  Papers (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (564 KB)

    A power conditioning system (PCS) which uses a supercapacitor bank as energy storage device is proposed as a viable solution for improving the quality and the reliability of the electric energy supply. Several tasks can be performed at the same time, such as reactive power compensation, current harmonic reduction, and smoothing of pulsating loads. Moreover, the PCS can operate as uninterruptible p... View full abstract»

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