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Proceedings of IEEE/IAS International Conference on Industrial Automation and Control

5-7 Jan. 1995

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  • Proceedings of IEEE/IAS International Conference on Industrial Automation and Control

    Publication Year: 1995
    Request permission for commercial reuse | PDF file iconPDF (31 KB)
    Freely Available from IEEE
  • Evolving prototype rules and genetic algorithm in a combustion control

    Publication Year: 1995, Page(s):243 - 248
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (448 KB)

    All approaches to rule-based control have relied upon a pre-classification of the state-space for their success. Given a classification of the state-space, either an individual control action or a whole set of control actions can be learnt. But quality of control is limited by the quality of the state-space classification. When no classification is specified, a more challenging problem is how to a... View full abstract»

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  • Robust stabilization of Bernoulli-Euler beam by one point feedback

    Publication Year: 1995, Page(s):249 - 256
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (408 KB)

    This paper deals with the stabilization of a distributed parameter system based on multilinear box theorem and in which some vertex type of results are possible. The system is modelled using an infinite partial fraction expansion. While the control is designed based on a truncated interval model. The advantages are: one can use well established methods of interval plant techniques like box theorem... View full abstract»

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  • An on-line method for monitoring of relative humidity using thermal sensors

    Publication Year: 1995, Page(s):7 - 11
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (252 KB)

    Relative humidity is an important process variable in many agro-based and food processing industries and continuous monitoring and control of it becomes necessary. There are a numbers of direct reading type measuring techniques using variable parameter sensors. Many attempts have also been made to measure relative humidity on-line with the classical concept of wet and dry bulb psychrometer. With t... View full abstract»

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  • Aspects of fuzzy logic in controller design

    Publication Year: 1995, Page(s):83 - 88
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (388 KB)

    Fuzzy logic is a systematic mathematical formulation for investigating and characterizing the different types of uncertainties. This paper presents the concept of representing uncertainties in membership diagram and forming the fuzzy rules (fuzzification) specifically for the basic design of controller. The fuzzification is carried out with eleven linguistic values. A defuzzification approach deve... View full abstract»

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  • Constrained model predictive control: an experimental study

    Publication Year: 1995, Page(s):257 - 262
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (324 KB)

    Constrained model predictive control (CMPC) has become increasingly popular in process industries in recent years owing to its optimization and constraint handling capabilities. This type of strategy features several aspects not commonly encountered in traditional advanced controls. Success with CMPC will be enhanced by an in-depth understanding of the underlying concepts. Training in CMPC therefo... View full abstract»

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  • Microcontroller based efficiency-maximization for a brushless doubly-fed machine pump drive

    Publication Year: 1995, Page(s):377 - 381
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (332 KB)

    A 60 HP brushless doubly-fed machine (BDFM) pump drive is to replace a wound rotor induction machine (WRIM) drive in a local waste-water treatment plant. This paper discusses a simple, microcontroller based search algorithm to maximize the efficiency of the BDFM pump drive. The algorithm minimizes the total input power that is supplied to the drive at any speed and load condition. This algorithm c... View full abstract»

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  • Registration and projection of multiple overlapping images on 3D structures

    Publication Year: 1995, Page(s):13 - 18
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (564 KB)

    A system that can integrate small pieces of images (taken from a close range) into a composite 3D surface, is developed. The device, along with 3D position/orientation estimation equipment, can be used in different environments for inspection tasks. For example, inspection of hulls of ships anchored at a bay, or examination of interior of pipes and tanks. Experimental results are presented, valida... View full abstract»

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  • Application of fuzzy control to a high-speed discrete event system

    Publication Year: 1995, Page(s):89 - 94
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (420 KB)

    Among the literature on optimal control of discrete event systems (DES), few works have been done using fuzzy control. In this paper, a high-speed discrete event system is considered. It is made up of a set of multi-inputs single-output processes. Owing to the nature of the available information (binary vectors), a hierarchical fuzzy controller is proposed to control this system. This controller c... View full abstract»

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  • A new controller for efficient wave power generation

    Publication Year: 1995, Page(s):357 - 363
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (380 KB)

    Based on the stator current control of induction machine, a new current control scheme is developed for making the peak power to average power ratio of the wave power feeding in to the mains around unity. The proposed scheme is realised using an AC voltage controller. The induction machine operates both in motor and generating modes. Both simulation and test results have been presented View full abstract»

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  • Parallel structured network for solving balanced realization problems

    Publication Year: 1995, Page(s):263 - 267
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (216 KB)

    Given a state space description of a linear system, the balanced realization problem is to find a similarity transformation for the state variables. This transformation must transfer both the system energy matrix and the output energy matrix into diagonal form. In this paper a novel parallel structured network (PSN) is constructed to solve this problem. The three possible forms of realization, whi... View full abstract»

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  • Characteristics of a brushless doubly-fed machine in current-fed mode of operation

    Publication Year: 1995, Page(s):143 - 148
    Cited by:  Papers (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (344 KB)

    This paper discusses the development of a current-forced model for a brushless doubly-fed machine (BDFM). The current-forced model is analyzed both in dynamic as well as in steady-state operating conditions. The simulated characteristics of the BDFM under dynamic operating conditions are presented using the parameters of an existing 5-HP laboratory prototype machine. Comparisons are shown between ... View full abstract»

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  • Frequency dependent load chipping in as a demand side management (DSM) tool-concept and issues

    Publication Year: 1995, Page(s):383 - 388
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (352 KB)

    Load curve shape modification in electric power system is a major demand side management objective, achieved by extensive use of “time of the use” and such other tariffs. This paper describes a different approach to achieve the same objective by adapting concept of “frequency for the use”, aided by appropriate tariff strategy. Administration of this new demand side manageme... View full abstract»

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  • An intelligent controller for aluminium smelter potlines

    Publication Year: 1995, Page(s):55 - 60
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (584 KB)

    The control parameters for the Hall-Heroult electrolytic process to industrially produce aluminium metals are cryolite ratio, current efficiency and heat balance which are seen to be dependent on the bath resistance. In this paper, the authors present an intelligent controller based on the bath resistance process model, using the MLIAC (Multi Level Intelligent Control) architecture. The design is ... View full abstract»

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  • Feature based shape recognition using Hopfield neural network

    Publication Year: 1995, Page(s):19 - 24
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (348 KB)

    A key problem for robots is to identify the industrial parts in its workcell. Presently, robot workcells have limited flexibility because they expect objects in precise location without any part overlapping or touching. A method to recognize two dimensional objects independent of their position, orientation, size and limited occlusion using a Hopfield neural network is implemented. Features used a... View full abstract»

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  • On robustness measures and control

    Publication Year: 1995, Page(s):281 - 284
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (248 KB)

    Industrial processes are subject to disturbances and uncertainties. Robustness analysis and control are used to improve the performance of such systems. Various robustness measures are investigated in the paper for stability and performance of the perturbed system. The issues of conservatism and control for robustness are also discussed View full abstract»

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  • Quantitative synthesis for a 3×3 distillation column to achieve performance robustness

    Publication Year: 1995, Page(s):161 - 166
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (312 KB)

    In this paper, quantitative synthesis of a multivariable two-matrix-degree-of-freedom feedback system for a 3×3 distillation column with sidestreams example having significant plant parameter uncertainty, is performed. The synthesis procedure is that of multi-input multi-output (MIMO) quantitative feedback theory (QFT). From the given MIMO problem, equivalent single-loop problems are derived... View full abstract»

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  • Real time data acquisition and energy management system using distributed computer architecture

    Publication Year: 1995, Page(s):427 - 434
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (556 KB)

    The role of a computerised data acquisition and energy management system is of vital importance in order to monitor and control a large power system under real time conditions. In India the computerised load despatch centres were installed at a number of places on a regional basis in the early eighties. Since at that time the concept of open system and inter-connectivity among the equipment of dif... View full abstract»

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  • Bi-directional communication channel on the HT power line using series injection technique

    Publication Year: 1995, Page(s):401 - 404
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (216 KB)

    A scheme is proposed to facilitate remote monitoring (metering) of HT consumers from the substation. This uses the HT feeder itself as the communication medium. The feasibility of the scheme is studied through simulation and is also experimentally verified on TNA. The results obtained are presented and discussed. The scheme adopts series injection technique. The scheme proposed is different in app... View full abstract»

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  • A robust adaptive controller using fuzzy logic approach

    Publication Year: 1995, Page(s):95 - 99
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (220 KB)

    This paper deals with the synthesis of a robust adaptive controller considering the nonlinearities of SISO system. Processes such as blast furnace, cement kiln, digesters etc. are nonlinear and their order of mathematical model is not known. These processes are nonlinear to the extent that they can be controlled only by expert human operator. A fuzzy interface is introduced in this paper to model ... View full abstract»

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  • Substation automation using ART 1 based neural network

    Publication Year: 1995, Page(s):323 - 328
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (452 KB)

    In this paper we describe the design, analysis and implementation of online security assessment in substations on an alternative computational paradigm which is inherently parallel and distributed. The massively parallel and distributed nature of artificial neural network (ANN) is well suited in this respect. A site survey was conducted in a 110 KV substation of Kerala State Electricity Board, Pal... View full abstract»

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  • Fuzzy-Head: a mechanic human head robot controlled by a fuzzy inference engine

    Publication Year: 1995, Page(s):71 - 76
    Cited by:  Patents (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (336 KB)

    Fuzzy-Head is a mechanic model of a human head, considering cranial bone, lower jaw, muscles, tendons, connective tissue and skin. The positions and shapes of the lips, the jaw and the cheeks can be changed with the help of model ropes that are connected with a set of four servo-drives. The face mask may be treated as a complex nonlinear system which transforms the vectors of actual servo position... View full abstract»

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  • Energy conservation in India - challenges and achievements

    Publication Year: 1995, Page(s):365 - 372
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (740 KB)

    The gap between supply and demand of energy is continuously increasing despite huge outlay for energy sector since independence. Further, the burning of fossil fuel is resulting in greenhouse gases which are detrimental to the environment. The gap between supply and demand of energy can be bridged with the help of energy conservation which may be considered as a new source of energy which is benig... View full abstract»

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  • Microprocessor based protection of alternator against stator insulation failure

    Publication Year: 1995, Page(s):139 - 142
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (276 KB)

    A microprocessor based scheme for protection of stator winding of a large alternator has been devised for interturn, intraturn and turn to ground insulation failures. The proposed scheme protects the entire stator winding leaving no unprotected zone. The software used here is simpler in logic, but quicker in operation, without compromising reliability in any way. Complex subroutines are avoided fo... View full abstract»

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  • Direct adaptive control of nonlinear systems using a dynamic neural network

    Publication Year: 1995, Page(s):269 - 274
    Cited by:  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (464 KB)

    In this paper the development and application of a dynamic neural network called the dynamic neural processor (DNP) are discussed. The DNP is developed based on the neuro-physiological evidence that neural activity of any complexity depends upon the interaction of assembly of cells called neural subpopulations. A single subpopulation of neurons is assumed to consist of a number of similar neurons ... View full abstract»

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