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IEEE Transactions on Control Systems Technology

Issue 2 • Mar 1996

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Displaying Results 1 - 10 of 10
  • Optimal Popov controller analysis and synthesis for systems with real parameter uncertainties

    Publication Year: 1996, Page(s):200 - 207
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (732 KB)

    Robust performance analysis plays an important role in the design of controllers for uncertain multivariable systems. Recent research has investigated the use of absolute stability criteria to develop less conservative analysis tests for systems with linear and nonlinear real parameter uncertainties. This note extends previous work on optimal ℋ2 performance analysis using the Popov criterion ... View full abstract»

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  • Effects of torsional dynamics on nonlinear generator control

    Publication Year: 1996, Page(s):125 - 140
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1340 KB)

    The performance of a feedback-linearizing control for excitation control of a synchronous generator is investigated with respect to unmodeled dynamics of both the turbine generator unit and the transmission network. It is found that certain types of dynamics that were not modeled during the design of the control enter in a manner that does affect the performance of the control, but that preserves ... View full abstract»

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  • Active noise cancellation in ducts using internal model-based control algorithms

    Publication Year: 1996, Page(s):163 - 170
    Cited by:  Papers (19)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (528 KB)

    A feedback control algorithm based on the internal model principle is proposed to solve the active noise control (ANC) problem in ducts. Because of its infinite open-loop gain at selected frequencies, the controller is able, at the cancellation speaker position, to block noise transmission of these frequencies. In other words, the speaker acts like a totally reflective boundary. Stability analysis... View full abstract»

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  • A fuzzy-Gaussian neural network and its application to mobile robot control

    Publication Year: 1996, Page(s):193 - 199
    Cited by:  Papers (49)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (520 KB)

    A fuzzy-Gaussian neural network (FGNN) controller is described by applying a Gaussian function as an activation function. A specialized learning architecture is used so that membership function can be tuned without using expert's manipulated data. As an example of the application, a tracking control problem for the speed and azimuth of a mobile robot driven by two independent wheels is solved by u... View full abstract»

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  • A sliding-mode approach to fuzzy control design

    Publication Year: 1996, Page(s):141 - 151
    Cited by:  Papers (67)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (856 KB)

    This study develops a method for fuzzy control design with sliding modes in which robustness is inherent. Fuzzy control is formulated to become a class of variable structure system (VSS) control. Sliding modes are used to determine best values for parameters in fuzzy control rules, thereby robustness in fuzzy control can be improved. A switching manifold is prescribed and the phase trajectory is d... View full abstract»

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  • An analysis of the destabilizing effect of daisy chained rate-limited actuators

    Publication Year: 1996, Page(s):171 - 176
    Cited by:  Papers (50)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (520 KB)

    The response of a rate-limited actuator will lag behind a rapidly changing command. This lag may destabilize the closed-loop system. When multiple actuators are arranged in a daisy chain this effect can be significantly worse. The cost of daisy chaining, in terms of lost stability margin, is estimated analytically and numerically. A comparison of a simple daisy chain with a simple “cooperati... View full abstract»

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  • Failure diagnosis using discrete-event models

    Publication Year: 1996, Page(s):105 - 124
    Cited by:  Papers (327)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1676 KB)

    Detection and isolation of failures in large, complex systems is a crucial and challenging task. The increasingly stringent requirements on performance and reliability of complex technological systems have necessitated the development of sophisticated and systematic methods for the timely and accurate diagnosis of system failures. We propose a discrete-event systems (DES) approach to the failure d... View full abstract»

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  • Nonlinear control of optical fiber diameter variations

    Publication Year: 1996, Page(s):152 - 162
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (992 KB)

    This paper presents a simulation-based investigation of nonlinear control of optical fiber diameter variations. A model of the fiber drawing process is presented and model reference control (MRC) and quasi-nonlinear control (QNC) systems are developed, based on a nonlinear dynamical model of the fiber drawing process. Results of numerical simulation indicate that the control schemes developed in t... View full abstract»

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  • Nonlinear control of synchronous servo drive

    Publication Year: 1996, Page(s):177 - 184
    Cited by:  Papers (33)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (652 KB)

    The complete control design for a permanent magnet synchronous (PMAC) motor, derived from the input-output linearization, is presented in the paper. The motor model, written in the rotor's d-q coordinates, is nonlinear with respect to the state variables and linear in the control. The input-output linearization makes it possible to write the motor's model in Brunovski decoupled canonical form whic... View full abstract»

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  • Control loop performance monitoring

    Publication Year: 1996, Page(s):185 - 192
    Cited by:  Papers (59)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (712 KB)

    Control loop monitoring can be used to improve the performance of processes in industry. The monitoring tools presented are concerned with reducing the output variance of regulation loops. As a result, three different estimators are used to determine the minimum achievable output variance, the time delay and the static input-output relationship of the process. These three properties can be used to... View full abstract»

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The Ohio State University
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