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Canadian Journal of Electrical and Computer Engineering

Issue 4 • Date Nov. 1990

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Displaying Results 1 - 12 of 12
  • Canadian Journal of Electrical and Computer Engineering - Front cover

    Publication Year: 1990, Page(s): c1
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  • Inside front cover

    Publication Year: 1990, Page(s): c2
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  • Table of contents

    Publication Year: 1990, Page(s): 1
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  • An intelligent self-improving control strategy and its microprocessor-based implementation for application to a hydro-turbine governing system

    Publication Year: 1990, Page(s):130 - 138
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3019 KB)

    The intelligent self-improving control strategy, containing a controller with variable structure and parameters, a knowledge base and a detector/identifier, has been developed and implemented on a multiprocessor-based system. A digital emulator was built to test the control strategy. The proposed control strategy has been applied to a hydro-turbine governing system. Test results show that the prop... View full abstract»

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  • McMaster University: Research openings at the Communications Research Laboratory

    Publication Year: 1990, Page(s): 139
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  • A procedure for estimating the overall system worth associated with generating unit refurbishment

    Publication Year: 1990, Page(s):140 - 148
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2205 KB)

    Quantitative reliability evaluation is an important element in power system planning and operation and the indices generated can be used to make a wide variety of planning decisions. The paper presents a comprehensive and basic approach to recognizing the impacts of generating unit unavailability on expected energy production costs, expected failure costs and capacity costs. The procedure is energ... View full abstract»

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  • Structural and parametric estimation of turboalternators using minimal implementation of step responses

    Publication Year: 1990, Page(s):149 - 157
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3084 KB)

    A method to achieve a discrete minimal realization of the synchronous machine from step responses is proposed. It is based upon a singular decomposition of the Hankel matrix associated with these empirical observations and it is therefore, an extension of the classical Ho-Kalman (1965) algorithm. The strategies are discussed for the determination of the order of the machine with respect to the des... View full abstract»

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  • Soft switching choppers: A study by the equivalent soft switching cell method

    Publication Year: 1990, Page(s):158 - 166
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1774 KB)

    The switching cell concept was first introduced and used in order to study the micro-phenomena involved in the switching process; parasitics' influence, switching losses, snubbers, soft switching principle and so on. The authors demonstrate that the switching cell can also be a very efficient tool in the study of various converter topologies. As examples, two soft switching cells that can be used ... View full abstract»

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  • Overload and voltage control of power systems by line switching and generation rescheduling

    Publication Year: 1990, Page(s):167 - 173
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3779 KB)

    Presents of fast mathematical technique for solving security related problems in the steady-state operation of a power system. Both thermal overloads of transmission elements and nodal voltage violation problems are dealt with. In order to minimize the increase in operating costs, priority is given to the rescheduling of the network topology; however, the real and reactive power generation outputs... View full abstract»

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  • Calculation of phasor fields around A.C. transmission lines using temporal and spatial complex variables

    Publication Year: 1990, Page(s):174 - 179
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1054 KB)

    The field variables (potentials and induced voltages, electric and magnetic fields) in the neighborhood of AC transmission lines are periodic functions of time and can be represented by phasors or temporal complex variables. At the same time, the point in space can be represented by a position vector, a spatial complex variable, and the field quantity as a function of that spatial complex variable... View full abstract»

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  • [Back inside cover]

    Publication Year: 1990, Page(s): c3
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  • [Back cover - [advertisement]]

    Publication Year: 1990, Page(s): c4
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Aims & Scope

The role of the Canadian Journal of Electrical and Computer Engineering is to provide scientific and professional activity for its members in Canada, the CJECE complements international journals and will be of particular interest to anyone involved in research and development activities in the field of electrical and computer engineering.

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Meet Our Editors

Editor-in-Chief
Dr. Shahram Yousefi
Dept. of Electrical and Computer
     Engineering
Queen's University