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

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  • Control of high-performance AC power supplies using adaptive digital filters

    Publication Year: 2002, Page(s):1207 - 1212 vol.4
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (590 KB)

    This paper investigates the use of adaptive digital. filters for improving the performance of the inverter stage control of AC power supplies. In the proposed solution a conventional multi-loop control is used in order to ensure a fast dynamic response due to step load changes and a feedforward control based on adaptive filters is used in order to reduce the output voltage distortion in steady-sta... View full abstract»

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  • Harmonic and interharmonic impact of DTC-based induction motor drives on 3-wire network

    Publication Year: 2002, Page(s):1201 - 1206 vol.4
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (617 KB)

    The paper deals with the impact on the 3-wire feeding network of induction motor drives using direct torque control (DTC). Harmonic and interharmonic content of line currents is evaluated with reference to high-power drives (about 1 MW) with IGBT-voltage source inverter (VSI). The most common kinds of DTC algorithms are considered, and their performances both on motor-side and line-side are compar... 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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  • AC locomotive conversion systems without heavy transformers: is it a practicable solution?

    Publication Year: 2002, Page(s):1172 - 1177 vol.4
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (593 KB)

    All actual AC locomotives have an onboard line transformer to reduce line voltages to levels suitable to power electronic devices and to guarantee galvanic insulation to the on board equipment. Unfortunately, such a transformer is heavy, expensive and represents one of main reasons why traction vehicles often exceed the targets for weight and dimensions. Two innovative conversion systems have been... View full abstract»

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  • Modeling and electronic control of a lighting system

    Publication Year: 2002, Page(s):1229 - 1234 vol.4
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (517 KB)

    In the paper, the dynamic model of a lighting system is taken into account and control strategies for controlling the amplitude of the load voltages and for minimizing the neutral current are presented. All the main components of the electronic system (supply, autotransformer, rectifier, capacitive filter, inverter, etc.) have been modeled in detail by using a graphical modeling technique named Po... View full abstract»

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  • A predictive control technique for PWM-rectifier in vector controlled induction motor drives

    Publication Year: 2002, Page(s):1196 - 1200 vol.4
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (471 KB)

    In the paper, an optimized control technique of an active front-end is described with reference to induction motor drives with a voltage source inverter combined with an active voltage source rectifier. Both the motor-side and line-side PWM power converters employ IGBTs as switching devices. Based on a simplified analytical solution of the system mathematical model in a discrete digital control, a... 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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  • Finite integration technique numerical modeling for EMC and signal integrity problems

    Publication Year: 2002, Page(s):1404 - 1409 vol.4
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (746 KB)

    Because it costs to solve electromagnetic compatibility (EMC) problems late in the development process, new methods have to predict the electromagnetic (EM) behavior of an equipment at the design stage. This proposal seems to be quite hard to solve because of the number of factors that influence the EM field. In this paper a software code based on the finite integration technique in time domain (F... 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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  • Design considerations on the low-voltage MOSFET applications to wheelchair drive systems

    Publication Year: 2002, Page(s):1166 - 1171 vol.4
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (625 KB)

    The paper deals with the application of MOSFETs, as switching devices, in a low-voltage power converter, which is devoted to an electric-driven wheelchair. The characteristics of the MOSFETs have a major impact on the whole performances of the drive system. The used devices are out of the traditional cell-structure MOSFETs, and they present interesting characteristics due to the advanced design ru... View full abstract»

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  • Selective active filters using repetitive control techniques

    Publication Year: 2002, Page(s):1223 - 1228 vol.4
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (611 KB)

    This paper proposes a repetitive-based controller for active power filters, which compensates selected current harmonics produced by distorting loads. The approach is based on the measurement of line currents and performs the compensation of selected harmonics using a closed-loop repetitive-based control scheme. Compared to conventional solutions, this approach allows full compensation of selected... View full abstract»

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  • Quantitative and robust direct digital control for an LBDCM driven positioning stage

    Publication Year: 2002, Page(s):1190 - 1195 vol.4
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (547 KB)

    The direct digital positioning control for a linear brushless DC motor (LBDCM) driven positioning stage with quantitative and robust performance is studied in this paper. An experimental LBDCM drive is first established, and its dynamic model is estimated from measurements. To handle the command tracking and load regulation position control problems simultaneously, a two-degrees-of-freedom (2DOF) ... 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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  • Linear voltage regulator susceptibility to conducted EMI

    Publication Year: 2002, Page(s):1398 - 1403 vol.4
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (541 KB)

    In this paper the susceptibility of voltage regulator circuits to electromagnetic interference is analyzed by experimental measurements. This analysis highlights two different effects of EMI on this circuit, for different levels of the injected power: an offset in the regulated voltage for low-level injection and a complete circuit failure for high-level injection. Both these effects are essential... View full abstract»

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  • Stability analysis of electrical drives fed by matrix converters

    Publication Year: 2002, Page(s):1108 - 1113 vol.4
    Cited by:  Papers (17)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (536 KB)

    Input filters are usually adopted in electrical drives in order to improve the input current quality and to reduce the input voltage distortion. These filters; can determine instabilities, depending on the converter topology and drive control strategy. In this paper the stability of an electrical drive fed by a three-phase to three-phase matrix converter is analyzed considering two different input... View full abstract»

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  • Voltage regulation system design for the four-wire voltage-converter with split DC link capacitor

    Publication Year: 2002, Page(s):1091 - 1096 vol.4
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (544 KB)

    This paper presents the voltage regulation system design for the four-wire voltage converter with split DC link capacitor. The voltage regulation system is used to control the DC side voltages on a three-leg voltage source converter connected to the AC mains. It accomplishes the total DC voltage regulation and voltage sharing across capacitors. System modelling and compensators syntheses are reali... View full abstract»

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  • Self-startup of static series compensator

    Publication Year: 2002, Page(s):1306 - 1311 vol.4
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (542 KB)

    The energy-storage of the static series compensator (SSC) dictates its capability to mitigate voltage dips. Capacitors are considered the most feasible energy storage for the SSC, particularly in high power applications. However, charging techniques of such energy-storage capacitors (ESC) have not been reported in literature. This paper proposes and describes the self-charging, technique that uses... 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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  • Low noise, gain enhanced circuits for low voltage low power CMOS systems

    Publication Year: 2002, Page(s):1346 - 1351 vol.4
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (546 KB)

    Low voltage low power specifications make difficult the integration of very high gain operational amplifiers; the classic method to achieve a gain enhancement together with both an offset and a low frequency, noise reduction is a proper autozeroing, which on the other hand significantly increases the effects of the input wideband noise. In this paper, the authors introduce dynamic matching of oper... View full abstract»

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  • Design of a fault tolerant control system for a NPC multilevel inverter

    Publication Year: 2002, Page(s):1075 - 1080 vol.4
    Cited by:  Papers (17)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (623 KB)

    This paper gives a solution to implement a reconfigurable embedded controller for a NPC inverter. Redundancies in semiconductor configurations are used to enable a minimal operation with faulty power switches. The fault tolerance is obtained by the use of a particular control system architecture where modulated voltages are directly imposed and corresponding switch configurations are determined by... View full abstract»

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  • Tuning PI speed controllers for electric drives using simulated annealing

    Publication Year: 2002, Page(s):1131 - 1135 vol.4
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (438 KB)

    This paper introduces the application of a stochastic search technique, known as simulated annealing, to the problem of tuning electric drive speed controllers. Tuning by conventional analysis methods is complicated by the presence of a significant nonlinearity caused by saturation of the current controller. The nonlinearity ensures that optimum controller settings depend on the form of the input ... 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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  • Passivity based control applied to stand alone generators

    Publication Year: 2002, Page(s):1160 - 1165 vol.4
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (479 KB)

    The paper presents the study and the design of air embedded electronic control system that allows diesel engine driven stand-alone synchronous generators to operate at variable (optimum) speed. A new control strategy has been developed, based on passivity theory for the PWM inverter control and a fuzzy, logic fuel admission control system, to overcome the nonlinearity introduced into the system by... 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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  • A rotor position estimator for switched reluctance motors using CMAC

    Publication Year: 2002, Page(s):1184 - 1189 vol.4
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (582 KB)

    This paper presents an approach to the rotor position estimation in switched reluctance motors (SRMs) by using a cerebellum model articulation controller (CMAC). Previous research has shown that an artificial neural network (ANN) forms an efficient mapping structure for the nonlinear SRM. Through measurement of the flux linkages and currents for the phases, a feedforward neural network (FFNN) is a... View full abstract»

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