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IEEE Transactions on Industry Applications

Issue 1 • Date Jan. 1979

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  • Table of contents

    Publication Year: 1979, Page(s): c1
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  • IEEE Industry Applications Society

    Publication Year: 1979, Page(s): c2
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  • New Officers in the Industry Applications Society

    Publication Year: 1979, Page(s):1 - 2
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  • New Fellows in the Industry Application Society

    Publication Year: 1979, Page(s):3 - 6
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  • Industry Applications Society President's Message

    Publication Year: 1979, Page(s): 7
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  • Measurement Problems in Determining the Efficiency of Thyristor-Supplied Motor Drives

    Publication Year: 1979, Page(s):8 - 13
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1683 KB)

    The reasons why simple ammeter and voltmeter measurements cannot be used to determine accurately the power flow into the armature of a dc motor supplied from a thyristor circuit are reviewed. Ratios of average to effective value of voltage are considered as an aid to determining the conditions under which approximate methods may give reasonable results. Ratios of fundamental to effective value in ... View full abstract»

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  • Analysis of a Novel Forced-Commutation Starting Scheme for a Load-Commutated Synchronous Motor Drive

    Publication Year: 1979, Page(s):14 - 24
    Cited by:  Papers (24)  |  Patents (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2431 KB)

    A load-commutated inverter synchronous motor drive system employing a simple auxiliary commutation circuit for machine startup analyzed, and results hybrid computer simulation are presented. The commutation circuit employs a single commutation capacitor connected to the neutral of the machine and two auxiliary thyristors, which are used only during machine starting. A practical operating scheme is... View full abstract»

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  • Performance Calculations of a Reluctance Motor Drive by dq Harmonlc Balance

    Publication Year: 1979, Page(s):25 - 35
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2074 KB)

    A method of analyzing the constant speed steady-state performance of a reluctance motor fed from voltages of an arbitrary waveform is presented. The solution is obtained directly from Park's equations by a time-domain harmonic balancing approach related to the method of multiple reference frames. Both synchronous and asynchronous operation can be obtained from the same theory. The method is readil... View full abstract»

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  • Dynamic Performance of Self-Controlled Synchronous Motors Fed by Current-Source Inverters

    Publication Year: 1979, Page(s):36 - 47
    Cited by:  Papers (24)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3371 KB)

    Dynamic characteristics of self-controlled synchronous motors are analyzed on the basis of the state-space method and Runge-Kutta-Gill method. As the results of this analysis, the effects of dc chokes, damper windings, and saliency of the motor on these characteristics are quantitatively clarified. Transfer function models of this type of motors are also proposed. View full abstract»

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  • Losses and Parasitic Torques in Electric Motors Subjected to PWM Waveforms

    Publication Year: 1979, Page(s):47 - 53
    Cited by:  Papers (19)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3040 KB)

    Some aspects of the theoretical performance of an electric motor, supplied by an unfiltered pulsewidth modulated (PWM) inverter are studied. The stator copper losses and the winding insulation lifetime are emphasized. An induction motor system is assumed and the creation of low-frequency parasitic torques are described. Their relative importance are estimated. It is shown that PWM supplies may hav... View full abstract»

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  • Transfer Functions of the Slip-Controlled Induction Machine

    Publication Year: 1979, Page(s):54 - 62
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3086 KB)

    The use of a feedback loop to regulate the slip frequency of an inverter-driven induction machine is viewed as replacing the normal independent control of stator frequency with independent control of slip frequency. For steady-state conditions the two modes of operation are shown to produce characteristics analogous to shunt and series dc machines. A method employing closed-form transfer functions... View full abstract»

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  • Load-Commutated Inverter/Synchronous Motor Drive Without a Shaft Position Sensor

    Publication Year: 1979, Page(s):63 - 71
    Cited by:  Papers (31)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (5417 KB)

    Synchronous motor drives are beginning to enjoy renewed popularity for certain applications such as flywheel energy storage. One of the reasons is that a synchronous motor drive can be made self-commutating so that the inverter becomes equivalent to a conventional phase-control bridge converter without large commutating components. The drive to be controlled consists of an inductor alternator coup... View full abstract»

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  • Development of a Modulation Strategy for a PWM Inverter Drive

    Publication Year: 1979, Page(s):72 - 79
    Cited by:  Papers (43)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2117 KB)

    When induction motors are driven by electronic inverters, the applied voltage waveforms are quite nonsinusoidal. The fundamental component of the current is controlled by the load. The harmonic currents are limited principally by the motor leakage inductance and are independent of load. These harmonic currents can lead to increased motor heating and to increased peak currents. In addition, the mod... View full abstract»

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  • Choices of Jacketed or Bare Concentric Neutral Cable for Effective Grounding and Corrosion Control

    Publication Year: 1979, Page(s):80 - 84
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1728 KB)

    New types of underground corrosion have been experienced following widespread use of direct-buried cables for electric power distribution at 7.2/12.47 and 14.4/24.9kV. Alternatives that should be considered in selecting types of cable and corrosion control measures for underground electric facilities are discussed. The choices are examined in light of the permanence of other buried metal connected... View full abstract»

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  • Converters for Supplying Pulsed Power Loads

    Publication Year: 1979, Page(s):85 - 91
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2288 KB)

    There is a growing need for supplying repetitive pulsed power loads of increasing magnitudes up to several hundred megawatts or more in areas of radar, lasers, high-energy physics experiments and thermonuclear fusion. The nature of such loads can be expected to be as diverse as their applications. The pulsed power demands and corresponding reactive volt-amperes requirements are undesirable from th... View full abstract»

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  • Equivalence in Harmonics Between Cycloconverters and Bridge Converters

    Publication Year: 1979, Page(s):92 - 99
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2589 KB)

    The similarity between a six-pulse three-phase cycloconverter operating in the circulating current-free mode and a six-pulse three-phase bridge converter is discussed analytically with regard to the rms value and the harmonics of the respective output voltages. A method is presented for calculating the rms voltage of a family of sideband frequencies which are generated in the output voltage of the... View full abstract»

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  • Electrostatic Hazards Associated with Powder Handling in Silo Installations

    Publication Year: 1979, Page(s):100 - 103
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2088 KB)

    Pneumatic delivery and general movement of powdered products inevitably results in some degree of charge separation between the product and its containing walls. Unlike electrostatic charging associated with high-velocity pumping of insulating liquids, where addition of an antistatic additive is a standard means of quenching the charge, the situation is a little more difficult to control with powd... View full abstract»

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  • Elimination of Electrostatic Charging in Punctured Aerosol Cans

    Publication Year: 1979, Page(s):104 - 108
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (4126 KB)

    A hazard situation during normal can-filling operations on pressure-packed container products is described. Under certain conditions and with certain products, accidental damage to the container resulted in charge separation between the container and the product being expelled under pressure. The cause of electrostatic charge separation was investigated, together with identification of the product... View full abstract»

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  • Automatic Discharger Systems for Refueling

    Publication Year: 1979, Page(s):109 - 114
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1842 KB)

    Some novel approaches to the problem of electrification of hydrocarbon fuels are examined. Some earlier workers' results are discussed, and the shortcomings of existing theories are highlighted. A requirement for new and improved instrumentation is identified. Two fully instrumented fueling installations which have been constructed at Southampton for experiments on static hazards are described. An... View full abstract»

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  • IEEE copyright form

    Publication Year: 1979, Page(s):115 - 116
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Aims & Scope

The scope of the IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS includes all scope items of the IEEE Industry Applications Society, that is, the advancement of the theory and practice of electrical and electronic engineering in the development, design, manufacture, and application of electrical systems, apparatus, devices, and controls to the processes and equipment of industry and commerce; the promotion of safe, reliable, and economic installations; industry leadership in energy conservation and environmental, health, and safety issues; the creation of voluntary engineering standards and recommended practices; and the professional development of its membership.

Full Aims & Scope

Meet Our Editors

Editor-in-Chief
Thomas A. Nondahl
t.nondahl@ieee.org