By Topic

IEEE Transactions on Industrial Electronics and Control Instrumentation

Issue 3 • Aug. 1980

Filter Results

Displaying Results 1 - 25 of 25
  • Comparison of a Local Linearization Algorithm with Standard Numerical Integration Methods for Real-Time Simulation

    Publication Year: 1980, Page(s):129 - 132
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (835 KB)

    The local linearization algorithm is presented as a possible numerical integration scheme to be used in real-time simulation. A second-order nonlinear example problem is solved using different methods. The local linearization approach is shown to require less computing time and give significant improvement in accuracy over the classical second-order integration methods. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Design and Application of a Microprocessor PID Predictor Controller

    Publication Year: 1980, Page(s):133 - 137
    Cited by:  Papers (20)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1131 KB)

    A digital PID predictor controller is designed and implemented in a microprocessor. The general purpose system controller described permits the use of integer arithmetic for efficient operation with minimum throughput delay time. The stability of the system is investigated and a normalized chart for the selection of the control coefficients for a class of applications is developed. The controller ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Motor Thermal Protection by Continuous Monitoring of Winding Resistance

    Publication Year: 1980, Page(s):137 - 141
    Cited by:  Papers (47)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1230 KB)

    Simple practical techniques which sense ac line current afford protection of motor windings for many applications. A more complete protection system is described which continuously monitors average winding resistance and hence temperature by means of an easily applied dc injection technique. No additional motor connections are required. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • An Application of Distributed Computer Control of Railroad

    Publication Year: 1980, Page(s):141 - 146
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1474 KB)

    There are three generations of railroad control: 1) early electromechanical control; 2) central computer control; and 3) distributed computer control. In the second-generation, tracks were divided into numbers of track sections and applications had been aimed toward detecting individual track section as to whether or not there is a train on the track and dispatching necessary information to trains... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Stability Analysis of Induction Motor Drives Using Phase-Locked Loop Control System

    Publication Year: 1980, Page(s):147 - 155
    Cited by:  Papers (27)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1810 KB)

    This paper presents the analysis of an induction motor drive using a phase-locked loop speed control system. A linear continuous model of the drive is developed and the system response is analysed using conventional root locus techniques. Various compensating ``filters'' and feedback signals are considered and the need for addition of derivative feedback is shown. A sampled data model is used to s... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Application of RF Circuit Design Principles to Distributed Power Converters

    Publication Year: 1980, Page(s):156 - 164
    Cited by:  Papers (70)  |  Patents (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (5875 KB)

    The application of RF circuit design principles to high-frequency power converters is described. Compared to conventional converter design, emphasis is placed on obtaining sinusoidal-type waveforms (instead of rectangular-type waveforms) to minimize device switching time requirements and alleviate transforming requirements. A 25-W 48-V to 5-V dc-to-dc converter design using a 5-MHz switching frequ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Stability Analysis of a Thyristor DC-DC Converter

    Publication Year: 1980, Page(s):165 - 168
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (691 KB)

    Stability of a dc-dc converter where the average value of the output voltage is maintained constant is investigated. Simplified equations are developed for the average value of the output during sampling periods. The converter is modeled as a chopper pulsewidth modulated (CPWM) system and stability conditions are derived. By simulation, the accuracy of the results is verified. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A Microprocessor-Based Current Controller for SCR-DC Motor Drives

    Publication Year: 1980, Page(s):169 - 176
    Cited by:  Papers (10)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1838 KB)

    A new current controller for a three-phase full-wave silicon controlled rectifier (SCR) bridge, supplying a separately excited armature-controlled dc motor driving an inertial load is developed. The controller operates in two modes, one applicable when the motor armature current is continuous, the other when it is discontinuous. The current controller is then used in speed or position control of a... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Comparison of Multiple-Output DC-DC Converters Using Cross Regulation

    Publication Year: 1980, Page(s):176 - 189
    Cited by:  Papers (37)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2955 KB)

    A new multiple-output dc-dc converter is analyzed, in which the cross regulation is performed by the energy-storage reactor as well as the transformer. The steady-state and the dynamic characteristics of this converter are compared both theoretically and experimentally with those of the conventional one composed of the step-up-down type circuit. As the results of comparative analysis, it is reveal... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • An On-Line System for Identifying the Angular Orientation of a Class of Engineering Components

    Publication Year: 1980, Page(s):189 - 196
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1995 KB)

    This paper describes the principle of operation and the development of a system for on-line identification of the angular orientation of a class of ``flat'' objects-the class of objects whose angular orientation can be uniquely determined by examining the features of the exterior profile or silhouette. The laboratory system described herein makes use of a digitized image of the component produced ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A Microprocessor-Based PLL Speed Control System Converter-Fed Synchronous Motor

    Publication Year: 1980, Page(s):196 - 201
    Cited by:  Papers (10)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1367 KB)

    A microprocessor-based digital phase-locked loop (PLL) speed control system of a self-controlled synchronous motor fed by a current source inverter is presented. The hardware and software structures of the system are shown in detail. Sophisticated methods for synthesizing PLL control systems are proposed. Experimental results demonstrate the validity of the proposed methods. The minimum maintenanc... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Harmonic Reduction in Inverters by Use of Sinusoidal Pulsewidth Modulation

    Publication Year: 1980, Page(s):201 - 207
    Cited by:  Papers (15)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1531 KB)

    This paper presents a new technique for harmonic reduction in inverters using sinusoidal pulsewidth modulation. In this inverter, the output wave with sinusoidal pulsewidth distribution can be kept in maximum degree of symmetry, and so it offers excellent harmonic control in comparison with any other modulation technique. Detailed analysis shows that the harmonics lower than the ninth (or the thir... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • The Analysis of Control Systems with Distributed Lag

    Publication Year: 1980, Page(s):207 - 210
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (945 KB)

    This is an extension of an earlier paper [1] dealing with the stability analysis of distributed-lag systems. Quite a few systems have been analyzed based on the dual phase-comparison technique [2]. A brief discussion of a recent paper [3] has also been included. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Power Factor of AC Controllers for Inductive Loads

    Publication Year: 1980, Page(s):210 - 212
    Cited by:  Papers (22)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (759 KB)

    A general relationship for the input power factor of ac controllers with inductive loads is derived in this paper. Its simplified form is given for the phase angle, integral cycle, and symmetrical pulsewidth modulated controllers. The latter may or may not have a freewheeling path for the load. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Analog Signal Processing for Tachometer, Accelerometer, and Torque-Speed Curve Plotting of Motors by Use of Silicon Solar Cells

    Publication Year: 1980, Page(s):213 - 218
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1411 KB)

    An optical tachometer is developed by the analog processing of the signals obtained from the silicon solar cell displacement sensors. Differentiating the speed signal, satisfactorily smooth acceleration signal is obtained by simple filtering. The torque-speed curve plotting for small motors by the application of this technique and the effects of the filtering on the plot are described. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Microprocessor-Based System for Processing Redundant Instrumentation Signals

    Publication Year: 1980, Page(s):218 - 222
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1251 KB)

    A microprocessor-based system for processing redundant instrumentation signals is proposed. The prototype of the system has been produced using general-purpose microprocessors. The system can provide a complex trip function in place of a conventional hardwired simple 2 out of 3 trip circuit. Self testing and fail safe features are included in the system. The feasibility of the system is assessed b... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Microprocessor Control of DC 3-Phase Thyristor Inverter Crcuits

    Publication Year: 1980, Page(s):223 - 228
    Cited by:  Papers (1)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3319 KB)

    The paper describes a microprocessor-orientated 50-kW direct current to three-phase variable frequency thyristor inverter which is suitable for induction machine speed and/or torque control. The microprocessor in real time analyzes speed and torque requirements, current and rotor speed feedback signals and calculates output frequency requirements. The microprocessor directly controls the main thyr... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Microprocessor Control of Position or Speed of an SCR DC Motor Drive

    Publication Year: 1980, Page(s):228 - 234
    Cited by:  Papers (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1415 KB)

    In silicon-controlled rectifier (SCR) dc motor drive control, it is desirable for a microprocessor to perform both the control law computations and the logical functions of SCR firing. However, because of their limited real-time capabilities, present-day microprocessors cannot accommodate excessively lengthy control algorithms. This paper presents a method, suitable for microprocessor implementati... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A Performance Study of Control Systems with Dead Time

    Publication Year: 1980, Page(s):234 - 241
    Cited by:  Papers (15)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1410 KB)

    This paper discusses the performance of the Smith Dead Time (SDT) controller for systems with appreciable dead time. Tuning, modeling accuracy, and the effects of parameter variations and measurement noise are all studied using a simulated second-order process with dead time. The corresponding performance of the conventional proportional plus integral (PI) controller is used as a reference for com... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A Programmable Firing Controller

    Publication Year: 1980, Page(s):242 - 246
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1186 KB)

    A digital programmable firing controller to drive solid-state power modulators is presented. The advantages over analog or hybrid systems are outlined. The simplicity, expandability, reliability, and repeatability without any channel crosstalk is stressed. Programming on line while maintaining strict waveshape symmetry is realized. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Vibrating Fluid Densimeters: A Solution to the Viscosity Problem

    Publication Year: 1980, Page(s):247 - 253
    Cited by:  Papers (3)  |  Patents (11)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1842 KB)

    The natural frequency of a resonator immerged in a fluid is density dependent. A major disadvantage of densimeters based on this principle is their poor accuracy for viscous fluids. We solve this difficulty by making an automatic control of the physical phase at which the resonator oscillates. This is done by a modulation technique which, additionally, gives the quality factor and, therefore, the ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Letters to the Editor

    Publication Year: 1980, Page(s):253 - 258
    Request permission for commercial reuse | PDF file iconPDF (2829 KB)
    Freely Available from IEEE
  • Contributors

    Publication Year: 1980, Page(s):258 - 262
    Request permission for commercial reuse | PDF file iconPDF (12393 KB)
    Freely Available from IEEE
  • For essential new data in electrotechnology, look to the source.

    Publication Year: 1980, Page(s): 263
    Request permission for commercial reuse | PDF file iconPDF (1351 KB)
    Freely Available from IEEE
  • Our IEEE periodicals have only one competitor as an information source in electrotechnology [advertisement]

    Publication Year: 1980, Page(s): 264
    Request permission for commercial reuse | PDF file iconPDF (1361 KB)
    Freely Available from IEEE

Aims & Scope

This Transactions ceased production in 1981. The current retitled publication is IEEE Transactions on Industrial Electronics.

Full Aims & Scope