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Industry Applications, IEEE Transactions on

Issue 2 • Date March 1986

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Displaying Results 1 - 25 of 27
  • Table of contents

    Publication Year: 1986 , Page(s): c1 - 205
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    Freely Available from IEEE
  • IEEE Industry Applications Society

    Publication Year: 1986 , Page(s): c2
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    Freely Available from IEEE
  • Industrial Control Committee-Some Perspectives

    Publication Year: 1986 , Page(s): 206 - 209
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    Freely Available from IEEE
  • Stray Voltage: Sources and Solutions

    Publication Year: 1986 , Page(s): 210 - 215
    Cited by:  Papers (6)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (2383 KB)  

    Stray voltage is caused by voltage drop and ground faults and may have its origin on the primary electrical distribution system or on the customer's secondary electrical system. The rms value of the neutral-to-earth voltage along a primary distribution line may be at a value of zero some distance from the substation depending on the condition of the conductor resistances, grounding resistances, an... View full abstract»

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  • High-Frequency Induction Hardening with Controlled Capacitors-Discharge Pulse-Operation Processes

    Publication Year: 1986 , Page(s): 216 - 222
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (3107 KB)  

    Induction hardening processes with power pulses obtained by means of capacitors-discharge high-frequency generators are discussed. The process is characterized by high-power densities and heating times on the order of some tens or hundreds of milliseconds together with cooling rates obtained by self-quenching without the use of auxiliary means. The possibility of obtaining the most favorable trans... View full abstract»

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  • A Simulation Study of Singular Value Decomposition for Controlled Plant Identification

    Publication Year: 1986 , Page(s): 223 - 229
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    A methodology is presented for the adaptive control of a single-input single-output system using the numerically stable method of singular value decomposition (SVD) for identification. This methodology is suitable for industrial applications where the plant parameters change slowly compared to the plant dynamics. A procedure is included for automatically identifying situations where the results of... View full abstract»

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  • The Effect of External Electrostatic Field Orientation on Aerosol Filtration by Granular Filters

    Publication Year: 1986 , Page(s): 230 - 234
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (2311 KB)  

    The separation of fine aerosol particles by a packed granular-bed filter, enhanced by external electrostatic fields, was studied experimentally and theoretically. The filtration efficiencies of charged and neutralized aerosols were measured for external fields aligned with the air flow, transverse to the flow, and opposite to the flow. Theoretical models of electrostatically enhanced granular-bed ... View full abstract»

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  • A Technique for Pressure Measurement in the Active Electrical Zone of a Wire-Cylinder Electrostatic Precipitator

    Publication Year: 1986 , Page(s): 235 - 239
    Cited by:  Papers (2)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1569 KB)  

    Probe techniques are discussed which have proven useful in the measurement of the current induced pressure distribution in the active electrical zone of a wire-cylinder electrostatic precipitator. The cylindrical electrode configuration is somewhat unique in that the pressure distribution is exactly known in the case of negligible axial flow and thus provides a check on the experimental technique.... View full abstract»

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  • A Technique for Increasing Power Transistor Switching Frequency

    Publication Year: 1986 , Page(s): 240 - 243
    Cited by:  Papers (6)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1381 KB)  

    The use of bipolar transistors in high-frequency power conversion applications is often limited by device storage time. Storage time is related to saturation effects in the power transistor, and an example is shown of the application problem caused by excess storage time in a single-phase inverter operated at variable load. The general principle of reducing storage time by quasi-saturated operatio... View full abstract»

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  • DC to DC Converters with High-Frequency AC Link

    Publication Year: 1986 , Page(s): 244 - 254
    Cited by:  Papers (5)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (5548 KB)  

    The properties of a dual thyristor are advantageously used for the development of very high-efficiency dc-dc converters. A new device named ``dual thyristor'' having static and dynamic characteristics dual to that of a thyristor has been recently reported. The development aspects of a dual thyristor based high-efficiency dc-dc converter with an intermediate ac link using a high-frequency inverter ... View full abstract»

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  • Realization of a New Inverter Circuit for Direct Photovoltaic Energy Feedback into the Public Grid

    Publication Year: 1986 , Page(s): 255 - 258
    Cited by:  Papers (10)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1932 KB)  

    A new regulated utility interactive inverter for direct photovoltaic energy feedback to the mains has been realized. A modulated buck converter converts the photovoltaic dc current to a rectified 50-Hz sine wave current, and the following self-commutated half-bridge generates a 50-Hz sine wave current, which is fed into one phase of the public power grid. This nonclassical inverter needs only thre... View full abstract»

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  • Analysis of the Effect of Source Voltage Fluctuations on the Power Factor in Three-Phase Controlled Rectifiers

    Publication Year: 1986 , Page(s): 259 - 266
    Cited by:  Papers (15)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1866 KB)  

    The effect of source voltage fluctuations on the harmonics and the power factor is analyzed for a six-pulse line-commutated converter. Exact expressions are derived for currents in the filter network and the ac supply lines as a function of the size of a series inductor in the LC type low-pass filter connected to a resistive load. The harmonics are calculated according to a method which is unortho... View full abstract»

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  • High-Performance PWM Frequency Changers

    Publication Year: 1986 , Page(s): 267 - 280
    Cited by:  Papers (20)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (3657 KB)  

    Besides the ability to change the frequency and amplitude of output voltages a high-performance frequency changer (FC) should produce sinusoidal output voltages and sinusoidal in-phase input currents and allow bidirectional power flow. The Venturini FC meets all these requirements but has some deficiencies which affect its practicality. Three kinds of improved FC's¿a new direct FC and its special... View full abstract»

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  • A New Microcomputer Controlled Modulator for PWM Inverters

    Publication Year: 1986 , Page(s): 281 - 285
    Cited by:  Papers (5)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (2011 KB)  

    The design of a new microcomputer controlled modulator for a pulsewidth modulated (PWM) inverter supplying a three-phase induction machine is presented. The requirements for the control of variable speed drives in general are discussed. The specifications for the PWM modulator are set out and explained. Analog and digital techniques are used in the design. All the control parameters of the modulat... View full abstract»

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  • Microprocessor-Based PWM Inverter Using Modified Regular Sampling Techniques

    Publication Year: 1986 , Page(s): 286 - 292
    Cited by:  Papers (5)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (2957 KB)  

    Pulsewidth modulation (PWM) techniques for inverter control of ac motors is becoming increasingly popular because of the number of practical advantages it offers over other techniques. Different PWM control strategies can be implemented more easily using microprocessor control. A modified microprocessor-based PWM technique incorporating linearization of the output voltage, with simultaneous reduct... View full abstract»

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  • Tuning of Field-Oriented Induction Motor Controllers for High-Performance Applications

    Publication Year: 1986 , Page(s): 293 - 297
    Cited by:  Papers (56)  |  Patents (6)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (2061 KB)  

    A tuning procedure for high-performance (e.g., axis feed type) applications of feedforward field-oriented controllers is developed and demonstrated. The theoretical basis of the procedure is explained via a novel form of dq vector diagram. This diagram displays both steady and transient states simultaneously. This format also provides substantial insight into the expected behavior of mistuned cont... View full abstract»

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  • Conduction Limits of a Three-Phase Controlled Converter in Inversion

    Publication Year: 1986 , Page(s): 298 - 303
    Cited by:  Papers (4)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1809 KB)  

    The basic six-SCR converter circuit generally used in dc motor drives can provide regenerative braking when operated in the inversion mode. When the motor is operated near rated voltage, however, troublesome commutation failures will occur unless the SCR firing delay angles are severely limited or limited as a function of motor current magnitude. The required delay angles for both light and rated ... View full abstract»

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  • High-Resistance Grounding in the Cement Industry-A User's Experience

    Publication Year: 1986 , Page(s): 304 - 309
    Cited by:  Papers (4)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (3746 KB)  

    The use of properly applied high-resistance grounding, with a method of tracing and locating the first fault, offers many advantages to the electrical power system including suppression of transient overvoltages, continued operation on the first ground fault, fast tracing of the first ground fault, and minimizing flash hazard. These benefits along with first-hand experience with a 480-V distributi... View full abstract»

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  • The Use of Load Flow Programs for Cement Plant Design and Modifications

    Publication Year: 1986 , Page(s): 310 - 323
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (4206 KB)  

    Load flow is the terminology describing the flow of power, both real and reactive, from sources such as generators and/or utility connections through all of the available paths to the load's consuming energy. Each load flow study calculates the kilowatt and kilovar flows through the various branches of a power system and determines the system operating voltage levels for a specific set of operatin... View full abstract»

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  • New Control Strategies for Raw Mix Preparation

    Publication Year: 1986 , Page(s): 324 - 329
    Cited by:  Papers (3)  |  Patents (2)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (2049 KB)  

    Control of raw mix composition in many cement plants is poor due to the inadequacy of conventional sampling and analysis systems. Potential sampling errors and delays in sampling and analysis prevent plant operators from taking effective and timely control actions. A new type of analysis system based on prompt gamma neutron activation analysis (PGNAA) permits elemental analysis of bulk solids in n... View full abstract»

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  • Increased Cement Grinding Efficiency by Using High-Efficiency Separators

    Publication Year: 1986 , Page(s): 330 - 337
    Cited by:  Papers (1)  |  Patents (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (4235 KB)  

    High-efficiency classifiers improve the grain size distribution of the finished cement and reduce grinding power requirements. Theoretical calculations indicate potential power savings of up to one-third at the main mill motor when applying high-efficiency classifiers instead of conventional separators at a cement fineness of 15 percent residue at 0.030 mm. The most commonly used separators of con... View full abstract»

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  • The Use of Carbon Monoxide and Other Gases for Process Control

    Publication Year: 1986 , Page(s): 338 - 344
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (2179 KB)  

    The application of the analysis of trace gas emissions downstream of the process dust filters in a precalciner kiln as the means of controlling the air-fuel ratio is described. This application eliminated the need for a high-temperature probe in the kiln as the kiln excess-air requirement is determined and controlled based on carbon monoxide, nitrogen oxide, and sulfur dioxide concentrations downs... View full abstract»

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  • Application of New Drive Systems for Plate Mill Drives

    Publication Year: 1986 , Page(s): 345 - 351
    Cited by:  Papers (6)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (2336 KB)  

    Recently, certain plans have been made to replace existing motors with the objective of achieving controlled rolling in Japanese plate mills. Application of ac drive systems, which are making rapid progress, can be considered for these plans. A comparison of conventional dc motors, brushless dc motors, and vector-controlled induction motors fed by cycloconverters (cycloconverter IM's) is introduce... View full abstract»

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  • Performance and Test Criteria for DC Fuses in Coal Mine Applications

    Publication Year: 1986 , Page(s): 352 - 359
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (3001 KB)  

    A comprehensive study was made of dc system parameters in coal mines to recommend performance and test criteria for dc fuses. Field tests were conducted in ten coal mines in which transients were initiated on the dc system from which the parameters of the dc mine electrical power system could be determined. Data processing was done to fit an exponential curve to the field waveforms. From this data... View full abstract»

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  • Coupling of Mine Grounds to Surface Grounds

    Publication Year: 1986 , Page(s): 360 - 364
    Cited by:  Papers (7)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1765 KB)  

    The mining industry in the United States is unique in utilizing a separate mine ``safety ground'' for the working area of the mine which is kept isolated from other ground systems used to ground lightning arrestors, static lines, or equipment frames in surface substations. It is kept isolated from the other grounds to prevent potentials which appear on these grounds as the result of lightning acti... View full abstract»

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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

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Carlton E. Speck