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Proceedings of IEEE International Conference on Industrial Technology 2000 (IEEE Cat. No.00TH8482)

19-22 Jan. 2000

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  • Fuzzy logic control of a hydraulic system

    Publication Year: 2000, Page(s):313 - 318 vol.1
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (388 KB)

    This paper presents the implementation of a fuzzy logic controller on an automated machine for mechanical processing of salmon. The prototype machine, as developed in The Industrial Automation Laboratory, is an innovative and automated version of a fish cutting machine. It is able to considerably reduce wastage of fish meat during processing, by automatically adjusting the position of the blade of... View full abstract»

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  • Neural network based fabric classification and blend composition analysis

    Publication Year: 2000, Page(s):231 - 236 vol.1
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (340 KB)

    Fabric classification plays an important role in the textile industry. Fabrics classification and determining the blend composition involves tedious work and time consumption. Knowledge based systems like artificial neural networks may be successfully employed to over come such problems. In this paper, a method is presented to classify and determine blend composition using neural networks. By inpu... View full abstract»

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  • A decentralized adaptive stabilizer based on minimal control synthesis algorithm for a multi-machine power system

    Publication Year: 2000, Page(s):307 - 312 vol.1
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (404 KB)

    In this paper, a new approach to decentralized adaptive stabilization using a minimal control synthesis algorithm for a multimachine power system is proposed. This controller uses proportional plus integral type adaptation to satisfy the hyperstability conditions for taking care of parameter changes of the system. The stabilization signals are synthesized at the excitation input of each machine su... View full abstract»

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  • A fully interconnected neural network approach and its applications in image processing

    Publication Year: 2000, Page(s):225 - 230 vol.1
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (748 KB)

    In previous works, backpropagated neural networks (BPNN) have been applied successfully in the spectral estimation and in the spatial resolution improvement of remotely sensed low resolution images using data fusion techniques. Besides, other types of learning algorithms have been proved their validity in image denoisification, enhancement and classification. Moreover, the time required in the lea... View full abstract»

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  • Intelligent processing of time series using neuro-fuzzy adaptive genetic approach

    Publication Year: 2000, Page(s):141 - 146 vol.1
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (520 KB)

    An intelligent approach is proposed for processing of time series based on a neuro-fuzzy network and an adaptive genetic algorithm (AGA). A chaotic time series data is used for network training because the trained network should be applied for forecasting of chaotic time series. A simple technique is used to measure the convergence speed of the GA, which in turn determines the probability values o... View full abstract»

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  • EMI mitigation in power electronic circuits operating at high power factor

    Publication Year: 2000, Page(s):267 - 271 vol.1
    Cited by:  Papers (1)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (296 KB)

    A quasi-resonant boost stage has been inserted at the front end of a power converter to improve the input side power factor, reduce the switching losses as well as reducing the EMI. The maid idea is to show the superiority of quasi-resonant boost stage over the hard-switched boost stage with respect to performance indices such as the power factor, switching losses and EMI. An optimized design has ... View full abstract»

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  • MIMO D-T system identification using subspace based methods

    Publication Year: 2000, Page(s):296 - 300 vol.1
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (356 KB)

    This paper presents a MIMO system identification algorithm based on calculating Markov parameters directly from available input-output data. The identification algorithm discussed in the paper can be considered as a version of the subspace model identification schemes. In selecting a state space model corresponding to input-output data, the algorithm makes use of recently introduced concept of pse... View full abstract»

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  • Output feedback compensator design for higher order discrete system via reduced model

    Publication Year: 2000, Page(s):101 - 106 vol.1
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (412 KB)

    In this paper a method is presented to design an output feedback compensator for a higher order discrete time system via its reduced order model. The advantages of the method are two fold: first is, the states are not required for feedback and secondly when the compensator is placed in the closed loop with the higher order system it guarantees the closed loop stability. The method is simple and ca... View full abstract»

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  • Towards fuzzy gain scheduling for gas turbine aero-engine systems: a multiobjective approach

    Publication Year: 2000, Page(s):81 - 86 vol.1
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (552 KB)

    This paper investigates the use of a nonconventional approach to the control of a gas turbine aeroengine. The rationale behind this study is the need to develop advanced tools and techniques that can assist in improving the performances of the system and which simultaneously enhance the flexibility of the control strategy. Here, two such methods, fuzzy logic and evolutionary algorithms, are consid... View full abstract»

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  • New energy efficient drive for 2 phase induction motor with minimum switching losses

    Publication Year: 2000, Page(s):170 - 173 vol.1
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (296 KB)

    Emerging high-volume low-power variable speed AC motor drives have the stringent requirements of low cost and compactness. Most low-power, low-performance applications use two-phase induction motors. A new control scheme is proposed for a two-phase inverter to control a two-phase induction motor in this paper. The proposed scheme is simple, cost-effective and reduces inverter switching losses sign... View full abstract»

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  • Perspectives on computational perception and cognition under uncertainty

    Publication Year: 2000, Page(s):221 - 224 vol.1
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (408 KB)

    This paper describes perspectives on computational perception and cognition under uncertainty. Humans often mimic nature in the development of machines. The human brain, particularly its faculty for perception and cognition, is the most intriguing models for developing intelligent systems. Human cognitive processes have a grant tolerance for imprecision or uncertainty. This is of great value in so... View full abstract»

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  • Fuzzy-neural computing: some advances

    Publication Year: 2000, Page(s):135 - 140 vol.1
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (328 KB)

    In this paper we give some basic principles of fuzzy neural computing using synaptic and somatic operations. We first briefly review the neural systems based upon the conventional algebraic synaptic (confluence) and somatic (aggregation) operations. Then we provide a detailed neuronal morphology based upon fuzzy logic and its generalization in the form of T-operators. For such fuzzy logic based ne... View full abstract»

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  • Line termination net for load overvoltage cancellation in medium to high power three-phase PWM VSI induction motor drives

    Publication Year: 2000, Page(s):261 - 266 vol.1
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (536 KB)

    A line termination net (LTN) suitable for overvoltage cancellation in PWM VSI induction motor (IM) drives is investigated, deriving reliable LTN sizing design criteria in the medium-to-high power range. Such an LTN concept has been successfully tested for small power IM drives, by defining analytical criteria which are of general validity. These ones here are applied to medium-to-high power drives... View full abstract»

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  • Enabling multimedia applications for factory automation

    Publication Year: 2000, Page(s):290 - 295 vol.1
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (472 KB)

    Emerging multimedia communication and processing technologies enable many factory applications. However, these technologies are advancing at a prodigious pace. Therefore, the design, management, and upgrade of these networks within this fast-paced environment represent a formidable challenge. The various enabling technologies and the standards that control their use are the subject of this paper. ... View full abstract»

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  • Robust controller design for a pressurised heavy water reactor

    Publication Year: 2000, Page(s):301 - 306 vol.1
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (324 KB)

    In this paper, a method is proposed to design a robust controller for an uncertain system using a fast output sampling technique. An LMI approach is used to design robust feedback for the uncertain system. The fast output sampling control allows the realization of the robust state feedback gain simultaneously for a family of linear models. But in practice there are two problems with exact realizat... View full abstract»

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  • Control of longitudinal dynamics of aircraft using periodic output feedback

    Publication Year: 2000, Page(s):95 - 100 vol.1
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (384 KB)

    In this paper, the problem of pole placement by periodic output feedback is presented. The poles of the discrete time control system could be assigned arbitrarily (with the natural restriction that they should be located symmetrically with respect to the real axis), provided that the number of gain changes is not less than the system's controllability index. Linearized models of aircraft are obtai... View full abstract»

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  • Operation, control and performance evaluation of parallel connected DC link series resonant inverter delivering to distributed load

    Publication Year: 2000, Page(s):370 - 375 vol.1
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (528 KB)

    DC link series resonance (DCLSR) is a new concept in power conversion and in specific to DC to AC conversion using IGBT. In this work, the operation and control strategies of parallel connected inverters delivering to common/distributed load are investigated. The DC-coupled control of link current from output voltage and load enables the parallel connected inverters to share the load power proport... View full abstract»

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  • Design and analysis of electro optic sensor by finite element method

    Publication Year: 2000, Page(s):12 - 17 vol.1
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (312 KB)

    The paper presents design, development, and analysis of electro-optic sensor by using FEM. The electro-optic effect (Pockels effect) has been used for measurement of voltage of variable frequency where a lithium-niobate crystal, sandwiched between electrodes undergoes a change in its refractive index when subjected to applied voltage. Change in refractive index is converted to a corresponding chan... View full abstract»

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  • An improved performance resonant AC-DC converter

    Publication Year: 2000, Page(s):284 - 289 vol.1
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (432 KB)

    The performance of a CLL type resonant AC/DC converter has been presented in this paper. It has been shown that, within the desired load range, the converter operates in the lagging power factor mode. A new control scheme to control the output DC voltage and to shape the input AC current is developed. The controller is practically implemented and a major improvement in the input current waveform h... View full abstract»

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  • System identification: from frequency response to soft computing

    Publication Year: 2000, Page(s):76 - 80 vol.1
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (476 KB)

    This paper presents a brief survey of the classical methods of system identification and their shortcomings. It also presents the advances made using tools from artificial intelligence, and discusses the directions for future work utilizing the advances made in soft computing. View full abstract»

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  • A two-switch AC-to-DC converter-large-signal analysis, simulation and experimental results

    Publication Year: 2000, Page(s):164 - 169 vol.1
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (424 KB)

    Large signal transient analysis of a two-switch, soft-switching, single-stage AC-to-DC power converter using discrete time domain analysis approach is presented. Analysis is used to predict the behavior of the converter for step changes in load and supply voltages. Theoretical results are verified by PSPICE simulation and experimental results. View full abstract»

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  • Application of neural nets for modelling partial discharge phenomenon

    Publication Year: 2000, Page(s):215 - 220 vol.1
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (452 KB)

    The classical approach to modelling is a quasiempirical relationship based on experiments on single artificial voids of well defined geometry. Such methods restrict the validity to the range of inputs considered. Keeping all this in view, this work attempts to apply an artificial neural network (ANN) for the modelling in order to exploit flexibility of ANN modelling with a short time for developme... View full abstract»

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  • A fuzzy logic controller based indirect field-oriented induction motor drive system

    Publication Year: 2000, Page(s):359 - 364 vol.1
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (328 KB)

    The paper presents simulation and experimental results obtained from an indirect fuzzy vector controlled induction motor drive under varying operating conditions like step change in speed command and step change in torque command. The superiority of fuzzy controller over conventional controllers in handling nonlinear system such as an induction motor has been effectively demonstrated by comparing ... View full abstract»

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  • Passive target tracking by unscented filters

    Publication Year: 2000, Page(s):129 - 134 vol.1
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (388 KB)

    Tracking of multiple targets by using only the bearing information is an important problem in passive sensing scenarios such as passive sonar or infrared seeker applications. In this paper, a new algorithm is presented to adaptively estimate the DOAs of multiple moving targets when linear equispace array (LES) is used for making the measurements. These algorithms are based on the differential MUSI... View full abstract»

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  • Life enhancer for SPV power systems [solar photovoltaics]

    Publication Year: 2000, Page(s):258 - 260 vol.1
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (140 KB)

    In this paper, the authors report the results of tests on small stand-alone solar photovoltaic (SPV) power systems. The systems were monitored regularly to determine the application specific effect on the systems with an emphasis on battery behavior. The performance of a life enhancer is extremely satisfactory. View full abstract»

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