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
  • Efficient algorithms for the design of optimal neurocontrollers

    Publication Year: 1995, Page(s):335 - 340
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (324 KB)

    The paper investigates the use of faster variants of back propagation to speed up Nguyen and Widrow's method (1990) of designing feedback controllers. The investigation shows that the basic method itself is impractical and so speeding up is not worthwhile View full abstract»

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  • The control of dynamical systems by neural networks

    Publication Year: 1995, Page(s):341 - 346
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (572 KB)

    In this paper the use of neural networks for the control of dynamical systems is considered. Both identification and feedback control aspects are discussed as well as the types of system for which neural networks can provide a useful technique. Multilayer perceptron and radial basis function neural network types are looked at, with an emphasis on the latter. It is shown how basis function centre s... View full abstract»

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  • A method for designing digital multivariable industrial controller

    Publication Year: 1995, Page(s):347 - 350
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (228 KB)

    A new method is proposed for designing cascade rational controllers for linear discrete time multivariable industrial systems using output feedback. The method is based on the principle of approximate model-matching as opposed to exact model-matching design procedures. A newly defined set of parameters called the approximate generalised time moments (AGTM) are used in the design procedure. The AGT... View full abstract»

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  • Programmable controllers for special control applications in rolling mills

    Publication Year: 1995, Page(s):173 - 177
    Cited by:  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (384 KB)

    Programmable controllers were originally evolved as programmable logic controllers to be used solely for replacement of hardwired logic schemes. In the course of time the PLC hardware has become more powerful and programmable controllers are taking their designated place deservingly in the upper range automation systems and handle some of the special control functions which were hitherto being exe... View full abstract»

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  • A novel grid interface for wind-driven grid-connected induction generators

    Publication Year: 1995, Page(s):373 - 376
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (196 KB)

    Establishment of 125 MW windfarms provided necessary thrust to harnessing renewable energy sources in India. Grid interfacing systems for any windfarms needs careful planning to assess its steady state impact on grid regarding voltage, power factor, and active reactive power losses. This paper presents a novel scheme to improve the performance of grid connected wind-driven induction generators by ... View full abstract»

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  • Application of fuzzy logic based self-tuning control

    Publication Year: 1995, Page(s):109 - 114
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (336 KB)

    A novel form of fuzzy self-tuning control is proposed which is based around the concept of two coupled sub-algorithms for plant estimation and control. Whilst model based approaches have been applied to a variety of industrial systems, the analytical techniques employed in such approaches may be inappropriate for plant that exhibits nonlinear and rapidly varying dynamic response characteristics an... View full abstract»

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  • PC based data acquisition and monitoring system for synchronous machines

    Publication Year: 1995, Page(s):195 - 197
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (160 KB)

    This paper describes the PC based data acquisition and monitoring system for synchronous machines. The experimental set-up is a demonstrating unit which gives the students an insight as to how a PC based system operates. This set-up is very useful in electrical machines, controls and instrumentation laboratories View full abstract»

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  • Motion control of a mobile robot with an onboard manipulator

    Publication Year: 1995, Page(s):351 - 356
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (428 KB)

    Navigation and control of autonomous vehicles with onboard manipulator systems are currently being investigated for intelligent manufacturing applications. A multilayer neural network controller which feedback linearizes a mobile base with an onboard arm is presented. Feedback linearization using neural networks is used to take into account the complete dynamics with non-holonomic constraints. The... 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 burner management system for utility boilers-a DCS solution

    Publication Year: 1995, Page(s):179 - 183
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (288 KB)

    This paper describes the design of burner management system (BMS) based on distributed digital control (DDC) for large utility boilers. The BMS system is responsible for the safety of the furnace and boiler. The system protects personnel and machinery from unsafe condition in furnace, and it helps the operator in safe operation, startup, and shutdown of the boiler. DDC for BMS is implemented using... View full abstract»

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  • Neural networks in robotics and control: some perspectives

    Publication Year: 1995, Page(s):451 - 456
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (604 KB)

    In recent years, ANNs have been successfully used in various applications such as system identification and control, robotics, pattern recognition and vision. One important application of ANNs is in the area of robotics. In particular, ANNs have been used to compute inverse kinematic transformations of multi-link robot manipulators. The advantage of using neural approach over the conventional inve... View full abstract»

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  • Permanent magnet torquer with temperature compensation for gyroscope used in space application

    Publication Year: 1995, Page(s):1 - 6
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (816 KB)

    This paper presents a computer-aided design and development of a high performance, passive temperature compensated permanent magnet torquer used in a dynamically tuned gyroscope (DTG). In the new scheme arrived at using finite element analysis, the direct leakage path between two permanent magnets in the torquer is primarily made use of along with the conventional shunt compensation in an optimum ... 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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  • 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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  • A neurocomputer based learning controller for critical industrial applications

    Publication Year: 1995, Page(s):43 - 48
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (396 KB)

    Because of their remarkable ability to learn nonlinear mappings from a nonexhaustive training set and generalize, neurocomputers can readily play the role of learning controllers for complex plants. Due to the parallel distributed nature of processing they introduce little time delay in the control loop. In this paper a new generalized feedforward neural network model is applied to the task of con... View full abstract»

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  • Fuzzy logic approach in a distributed plant automation system with intelligent front end controllers

    Publication Year: 1995, Page(s):115 - 120
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (364 KB)

    Fuzzy set theory is getting increasing importance in process control applications. Electronics Division of BHEL, Bangalore have developed an integrated plant automation system in distributed architecture known as “DIPAS”. The system incorporates man-machine interface, a fast local area network, 32-bit VME-based main processor and multiprocessor based all intelligent front end controlle... View full abstract»

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  • A hierarchical neural network controller for legged robots

    Publication Year: 1995, Page(s):291 - 295
    Cited by:  Papers (1)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (420 KB)

    Biological systems provide great motivation by virtue of their striking performance as an indication of what is possible. Because robots face the same physical laws and environmental constraints as those faced by biological systems in similar tasks, the solutions they use may embrace similar principles. In this context, the development of pneumatically driven rubber actuators has been a significan... View full abstract»

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  • Real time fuzzy logic speed control using conventional, assembly and simulation methods for industrial DC motors

    Publication Year: 1995, Page(s):203 - 208
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (456 KB)

    This paper describes three unique methods of efficient DC motor speed control: a simplified real time speed control approach using `C'; an Intel 16-bit microcontroller based fuzzy controller using assembly language; and using Inform fuzzy tools which allows fuzzy system design with graphical development tools including simulation and code optimization. The fuzzy controller controls the speed of th... 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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  • 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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  • 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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  • A novel adaptive vector control system for temperature compensation in induction motors

    Publication Year: 1995, Page(s):185 - 188
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (308 KB)

    A new method for the improvement of temperature variation in induction motor (IM) speed control is presented in this paper. A direct measurement of the rotor temperature is assumed. The compensation of the temperature effect is made not only by adjusting a digital filter flux model coefficients but also by calculating the on-line proportional integral (PI) controller coefficients. These correction... View full abstract»

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  • Computer aided engineering of distributed control systems

    Publication Year: 1995, Page(s):441 - 444
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (272 KB)

    For a large plant, engineering the distributed control system in the shortest possible time is extremely important. Increasingly, it is being realised that cutting down the project cycle time is the key to success in the international market place. Most companies have therefore developed computer aided tools for control systems engineering rule design. These systems are proprietary in nature. The ... View full abstract»

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  • Self-organizing neural networks for learning inverse dynamics of robot manipulator

    Publication Year: 1995, Page(s):457 - 460
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (340 KB)

    Fast and accurate trajectory tracking of a robot arm primarily depends on the knowledge of its explicit inverse dynamics model. Online learning of inverse dynamics using a supervised learning algorithm is difficult in the absence of a priori knowledge of command error. On the other hand, a self-organizing neural network employing an unsupervised learning scheme does not depend on the command error... View full abstract»

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