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# IEEE Transactions on Industrial Electronics and Control Instrumentation

## 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
| | PDF (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»

• ### Design and Application of a Microprocessor PID Predictor Controller

Publication Year: 1980, Page(s):133 - 137
Cited by:  Papers (20)  |  Patents (2)
| | PDF (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»

• ### Motor Thermal Protection by Continuous Monitoring of Winding Resistance

Publication Year: 1980, Page(s):137 - 141
Cited by:  Papers (47)  |  Patents (1)
| | PDF (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»

• ### An Application of Distributed Computer Control of Railroad

Publication Year: 1980, Page(s):141 - 146
Cited by:  Patents (1)
| | PDF (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»

• ### 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)
| | PDF (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»

• ### Application of RF Circuit Design Principles to Distributed Power Converters

Publication Year: 1980, Page(s):156 - 164
Cited by:  Papers (70)  |  Patents (9)
| | PDF (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»

• ### Stability Analysis of a Thyristor DC-DC Converter

Publication Year: 1980, Page(s):165 - 168
Cited by:  Papers (1)
| | PDF (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»

• ### A Microprocessor-Based Current Controller for SCR-DC Motor Drives

Publication Year: 1980, Page(s):169 - 176
Cited by:  Papers (10)  |  Patents (1)
| | PDF (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»

• ### Comparison of Multiple-Output DC-DC Converters Using Cross Regulation

Publication Year: 1980, Page(s):176 - 189
Cited by:  Papers (37)  |  Patents (2)
| | PDF (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»

• ### An On-Line System for Identifying the Angular Orientation of a Class of Engineering Components

Publication Year: 1980, Page(s):189 - 196
| | PDF (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»

• ### A Microprocessor-Based PLL Speed Control System Converter-Fed Synchronous Motor

Publication Year: 1980, Page(s):196 - 201
Cited by:  Papers (10)  |  Patents (1)
| | PDF (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»

• ### Harmonic Reduction in Inverters by Use of Sinusoidal Pulsewidth Modulation

Publication Year: 1980, Page(s):201 - 207
Cited by:  Papers (15)
| | PDF (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»

• ### The Analysis of Control Systems with Distributed Lag

Publication Year: 1980, Page(s):207 - 210
Cited by:  Papers (2)
| | PDF (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»

• ### Power Factor of AC Controllers for Inductive Loads

Publication Year: 1980, Page(s):210 - 212
Cited by:  Papers (22)
| | PDF (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»

• ### 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)
| | PDF (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»

• ### Microprocessor-Based System for Processing Redundant Instrumentation Signals

Publication Year: 1980, Page(s):218 - 222
Cited by:  Papers (4)
| | PDF (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»

• ### Microprocessor Control of DC 3-Phase Thyristor Inverter Crcuits

Publication Year: 1980, Page(s):223 - 228
Cited by:  Papers (1)  |  Patents (2)
| | PDF (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»

• ### Microprocessor Control of Position or Speed of an SCR DC Motor Drive

Publication Year: 1980, Page(s):228 - 234
Cited by:  Papers (10)
| | PDF (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»

• ### A Performance Study of Control Systems with Dead Time

Publication Year: 1980, Page(s):234 - 241
Cited by:  Papers (15)
| | PDF (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»

• ### A Programmable Firing Controller

Publication Year: 1980, Page(s):242 - 246
Cited by:  Papers (4)
| | PDF (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»

• ### Vibrating Fluid Densimeters: A Solution to the Viscosity Problem

Publication Year: 1980, Page(s):247 - 253
Cited by:  Papers (3)  |  Patents (11)
| | PDF (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»

• ### Letters to the Editor

Publication Year: 1980, Page(s):253 - 258
| PDF (2829 KB)
• ### Contributors

Publication Year: 1980, Page(s):258 - 262
| PDF (12393 KB)
• ### For essential new data in electrotechnology, look to the source.

Publication Year: 1980, Page(s): 263
| PDF (1351 KB)
• ### Our IEEE periodicals have only one competitor as an information source in electrotechnology [advertisement]

Publication Year: 1980, Page(s): 264
| PDF (1361 KB)

## Aims & Scope

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

Full Aims & Scope