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2000 Canadian Conference on Electrical and Computer Engineering. Conference Proceedings. Navigating to a New Era (Cat. No.00TH8492)

7-10 May 2000

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  • 2000 Canadian Conference on Electrical and COmputer Engineering [front matter]

    Publication Year: 2000, Page(s):i - xxxix
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    Freely Available from IEEE
  • Author index

    Publication Year: 2000, Page(s):xxxiv - xliii
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    Freely Available from IEEE
  • Trajectory tracking for robot using variable structure control

    Publication Year: 2000, Page(s):1123 - 1127 vol.2
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (345 KB)

    Based on the theory of variable structure system (VSS), a practical control system design for the trajectory control of robotics systems is presented. The variable structure control algorithm is determined from an approximate two-dimensional linear plant model, obtained by identification of the system used in the experimentation. In the application, the control of a three-link robot SCARA is consi... View full abstract»

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  • Modelling and thermal regulation of a group of electronic components

    Publication Year: 2000, Page(s):1138 - 1142 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (496 KB)

    This article presents a thermal controller of a group of electronic components. The system considered is based on a PCB. An equivalent electric model of the group of components is developed and validated by numerical simulations in the Flotherm program. The controller is composed of a linear corrector of PD (proportional derivative) type and a fuzzy logic controller. View full abstract»

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  • Numerical modeling and simulation of saturated unbalanced electromechanical transients of self-excited induction generators

    Publication Year: 2000, Page(s):1147 - 1151 vol.2
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (388 KB)

    The paper presents a generalized unified electromechanical current and flux models of self-excited induction generators. A k-factor saturation method is used to account for magnetic saturation in previous models. The neutral connection of the machine is also included. Numerical modeling of self-excited induction generator unbalanced transients according to machine grounding systems is proposed. To... View full abstract»

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  • Comparison of the speed estimation by an adaptive observer and by a dynamic neural network observer for an asynchronous machine

    Publication Year: 2000, Page(s):1197 - 1201 vol.2
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (488 KB)

    The article compares and characterises two nonlinear state observers for estimating the rotation speed of an asynchronous machine. The first is a deterministic adaptive observer based on dynamic modelling. The second is a dynamic neural net observer. A comparison is made of the dynamics, the convergence, the stability, the robustness and the ease of implementation of each observer. Finally, the si... View full abstract»

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  • A new approach to the evaluation of power system reliability

    Publication Year: 2000, Page(s):769 - 773 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (384 KB)

    This paper deals with a new approach to the reliability evaluation of transmission systems including substations and interconnections. The approach to transmission planning reliability in terms of system security which was defined as the ability of the system to withstand adverse events the catalogue of which constituted the design criteria. In some respects, this deterministic approach contains m... View full abstract»

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  • Power system reliability in a deregulated environment

    Publication Year: 2000, Page(s):765 - 768 vol.2
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (328 KB)

    At the present time, the deterministic approach to transmission reliability has not been able to incorporate the effect of simultaneous power transactions on system adequacy or the effect of system security on the feasibility of power transactions. In this paper, a probabilistic approach to analyze the security of power transactions under random trading has been developed based on a region-wise ap... View full abstract»

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  • Probability distribution evaluation of distribution system reliability indices using a time sequential simulation technique

    Publication Year: 2000, Page(s):760 - 764 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (480 KB)

    The time varying nature of system load and interruption cost in a distribution system affects both the mean values and the probability distributions of the system reliability indices. This paper presents a time sequential Monte Carlo simulation technique to evaluate the reliability indices and their probability distributions. The means and standard deviations of reliability indices for a test syst... View full abstract»

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  • Design and real implementation of adaptive notch filter

    Publication Year: 2000, Page(s):625 - 629 vol.2
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (376 KB)

    A real time scheme to track the frequencies of multiple sinusoids in a noisy waveform is proposed. The problem of estimating the frequencies is formulated as that of adapting the parameters of a notch filter so that the mean-squared prediction error is minimized. To overcome the computational complexity, an improved adaptation scheme is proposed based on estimating one frequency at a time and is c... View full abstract»

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  • A sender-initiated resource reservation mechanism over Diffserv networks

    Publication Year: 2000, Page(s):670 - 674 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (476 KB)

    The integrated service (Intserv) architecture provides the Internet the ability of delivering end-to-end QoS to applications over heterogeneous networks. Existing approaches for providing Intserv require routers to manage per flow states and perform per flow operations. Such a network raises the scalability concerns when the network size or flow number is very big. The differentiated services (Dif... View full abstract»

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  • Adequacy evaluation of interconnected systems with an AC/DC link using an equivalent approach

    Publication Year: 2000, Page(s):755 - 759 vol.2
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (352 KB)

    A technique designated as the equivalent approach is introduced in this paper to determine the reliability indices of interconnected systems consisting of AC/DC links. System reliability studies of an interconnected system containing a DC link involve detailed modeling of the DC transmission line followed by analysis of the overall interconnected system in which the DC link is an integral element.... View full abstract»

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  • Investigation of imperfect inter-cell synchronization in multi-carrier DS-CDMA wireless communications

    Publication Year: 2000, Page(s):1072 - 1076 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (296 KB)

    This paper discusses the sensitivity of imperfect inter-cell synchronization on the performance of multi-carrier direct sequence code division multiple access (MC DS-CDMA) for wireless communications. Time synchronization is derived from global position system (GPS) signal. However, the timing offset occurs that consists of timing error of GPS signal delay and propagation delay. The main problem w... View full abstract»

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  • Automatic identification of filled pauses in spontaneous speech

    Publication Year: 2000, Page(s):620 - 624 vol.2
    Cited by:  Papers (2)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (496 KB)

    Practical speech recognizers must accept normal conversational voice input (including hesitations). However, most automatic speech recognition work has concentrated on read speech, whose acoustic aspects differ significantly from speech found in actual dialogues. Hesitations, of which the most frequent are filled pauses, are common in natural speech, yet few recognition systems handle such disflue... View full abstract»

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  • Scene abrupt change detection

    Publication Year: 2000, Page(s):880 - 883 vol.2
    Cited by:  Papers (3)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (256 KB)

    This paper introduces a new method for video scene change detection. The proposed method utilizes the luminance histogram twice difference in order to determine the dynamic threshold needed to evaluate the break. The adaptive determination of the threshold, minimizes the number of incorrect decisions leading to a robust and accurate determination of the actual scene break. The method is simple, co... View full abstract»

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  • Performance testing methodologies for ATM traffic management mechanisms

    Publication Year: 2000, Page(s):664 - 669 vol.2
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (640 KB)

    Maximizing bandwidth utilization and providing performance guarantees in the context of the multimedia networking are two incompatible goals. The heterogeneity of the multimedia sources calls for the effective control schemes to satisfy these diverse quality of service requirements. These include traffic control at the source ends and the effective scheduling schemes at the switches. The discussio... View full abstract»

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  • Predicting bulk electricity system performance indices

    Publication Year: 2000, Page(s):750 - 754 vol.2
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (348 KB)

    This paper illustrates the past performance indices utilized in the Canadian Electricity Association, Electric Power System Reliability Assessment protocols and proposes a procedure to represent predictive indices in a similar form. This procedure is illustrated using a small educational test system designated as the RBTS and the IEEE Reliability Test System (IEEE-RTS) View full abstract»

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  • How to put your course on the Web

    Publication Year: 2000, Page(s):1207 - 1211 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (412 KB)

    This paper describes the use of Web oriented tools in the design of an instructional Web site, along with techniques for preparing technical content and administrative information for on-line viewing, printing in standard notes format, and slide projection. The example used is based on the author's experience delivering courses in electric machines and power circuits over the past four years View full abstract»

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  • Performance of coded multi-rate CDMA systems

    Publication Year: 2000, Page(s):1068 - 1071 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (268 KB)

    CDMA techniques are becoming more and more popular for high speed wireless multimedia network. For network flexibility, multi-rate CDMA has been proposed and studied; in these works, no coding is considered. This paper presents an analysis of multi-rate CDMA using convolutional codes. The results show that the bit error rate (BER) is greatly improved when coding is used in combination with a sprea... View full abstract»

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  • Analysis and comparison of passive & active harmonic suppression filters in distribution systems

    Publication Year: 2000, Page(s):615 - 619 vol.2
    Cited by:  Papers (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (356 KB)

    In typical distribution systems, the proliferation of nonlinear loads results in deterioration of the power quality. Standards such as the IEEE-519 are imposing harmonic limits for end users and utility systems. Passive filters have been commonly applied to limit the flow of harmonic current in distribution systems. However they introduce resonance in the power system. They also tend to be bulky, ... View full abstract»

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  • Multichannel multipoint distribution service system synchronization using global positioning system clock

    Publication Year: 2000, Page(s):875 - 879 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (360 KB)

    Timing and synchronization are critical in the design of any digital communications system. A communication system being studied. The multichannel multipoint distribution services (MMDS), requires a robust synchronization in order to be able to transmit a high speed data stream and to ensure data integrity. In the absence of SONET and SDH, a precise frequency from the global positioning system (GP... View full abstract»

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  • Internet flow blocking probability calculation

    Publication Year: 2000, Page(s):659 - 663 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (352 KB)

    A queuing analysis based on Internet traffic measurements is provided. First a finite-size Pareto queuing model for the heavy-tailed behavior of Internet flow traffic is presented. The derivation of the flow blocking probability with a finite buffer based on Internet flow traffic is provided. The flow blocking probability is given as a function of the buffer size, system load and parameter α... View full abstract»

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  • An evaluation of optical switch architectures utilizing wavelength converters

    Publication Year: 2000, Page(s):1008 - 1013 vol.2
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (504 KB)

    Due to the current costs of the optical network components, ways are being sought to maximize the benefits of optical networks while minimizing costs. Wavelength conversion has been studied as a way to improve efficiency in all-optical networks. A network utilizing wavelength conversion can minimize the number of wavelengths it employs, reducing the complexity and cost. This paper looks briefly at... View full abstract»

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  • A generalized approach to the protection of modern power systems

    Publication Year: 2000, Page(s):745 - 749 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (356 KB)

    This paper describes a knowledge-based system for the analysis and design of the protection a system element or group of elements such as a substation. The structure of the knowledge-based system is based on an object-oriented approach in order to manipulate and reuse the functions and protection algorithms. Given the input requirements, the knowledge-based system will propose a protection system ... View full abstract»

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  • Internal fault simulation in synchronous machines

    Publication Year: 2000, Page(s):1202 - 1206 vol.2
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (324 KB)

    This paper describes a synchronous machine model that can be used to simulate internal fault waveforms for power system protection studies. The need to develop the machine model in the direct phase domain is explained and a method to calculate the inductances involving the faulty windings is outlined using a four pole lap wound machine. The machine equations are then solved using a suitable numeri... View full abstract»

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