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2007 Thirty-Ninth Southeastern Symposium on System Theory

4-6 March 2007

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Displaying Results 1 - 25 of 85
  • [Front cover]

    Publication Year: 2007, Page(s): C1
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  • Copyright page

    Publication Year: 2007, Page(s): ii
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  • General Chair's Message

    Publication Year: 2007, Page(s): iii
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  • Conference Committee

    Publication Year: 2007, Page(s): iv
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  • SSST Steering Committee Members

    Publication Year: 2007, Page(s): v
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  • A Brief History of the Southeastern Symposium on System Theory (SSST)

    Publication Year: 2007, Page(s): vi
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  • Previous Host Universities for the SSST

    Publication Year: 2007, Page(s):vii - viii
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  • [Breaker page]

    Publication Year: 2007, Page(s): ix
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  • [Sessions listing]

    Publication Year: 2007, Page(s):xi - xvi
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  • [Breaker page]

    Publication Year: 2007, Page(s): xvii
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  • Modeling, Identification and Control of an Under Actuated Inertial Wheel Pendulum

    Publication Year: 2007, Page(s):1 - 5
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (4538 KB) | HTML iconHTML

    This work describes the modeling and identification of the parameters of an actual under actuated pendulum that uses an inertial wheel to produce the torque that moves the pendulum arm. The results are validated using a prototype constructed in the System and Control Laboratory at Hope College. This mechanical system is a useful tool for teaching and research. This paper describes the parameter id... View full abstract»

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  • On the Development of an Enhanced Optical Mouse Sensor for Odometry and Mobile Robotics Education

    Publication Year: 2007, Page(s):6 - 10
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (6700 KB) | HTML iconHTML

    This paper focuses on the development of a sensing module, testing methodology and set of experiments for the use of an optical mouse chip as an odometer in mobile robotics, including in an educational setting at the undergraduate level. The test bed includes an integrated microprocessor, mounting board and lens system designed to overcome the basic height to surface and speed limitations on the o... View full abstract»

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  • The Sea-Scout: A Novel Multi-Mode Autonomous Vehicle

    Publication Year: 2007, Page(s):11 - 15
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (6224 KB) | HTML iconHTML

    In this paper, we present preliminary results from an undergraduate research project involving the analysis and design of a lightweight multimode vehicle capable of driving on solid ground, swimming on the surface of the water, and easily transitioning between the two. Locomotion in and out of the water is provided by paddlewheels on each side of the vehicle. The physical design of the robot optim... View full abstract»

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  • Swarn Manipulation Of An Unactuated Surface Vessel

    Publication Year: 2007, Page(s):16 - 20
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (4923 KB) | HTML iconHTML

    This paper investigates the utilization of a swarm of autonomous tug boats to manipulate an unactuated vessel (i.e., barge or disabled vessel). Specifically the objective is to design a control strategy for each craft such that the combined effort of the swarm manipulates the unactuated vessel into a desired position and orientation under the constraints that the tugs can only exert a pushing forc... View full abstract»

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  • Gait Design and Modeling of a 12-Tetrahedron Walker Robot

    Publication Year: 2007, Page(s):21 - 25
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (4859 KB) | HTML iconHTML

    This work describes the use of a simulating walking robot to model the tetrahedron walker robots being developed at NASA/Goddard Space Flight Center. As a contribution to the gait generation and motion control of the tetrahedron walker robots, a concept has been formulated to implement in the case of choreographic designed gaits. This work is part of the contribution of this Hope College team to t... View full abstract»

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  • Flocking for Heterogeneous Robot Swarms: A Military Convoy Scenario

    Publication Year: 2007, Page(s):26 - 31
    Cited by:  Papers (1)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (5212 KB) | HTML iconHTML

    In this paper we apply a popular flocking control algorithm to a heterogeneous swarm of robots. The flocking controller contains separation, cohesion and velocity matching terms and has been shown to converge properly in the case of homogeneous swarms. The swarm models a military convoy unit with supply vehicles, defenders, and attackers. Each class of vehicle possesses different maneuvering capab... View full abstract»

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  • Small Signal Stability of an Unregulated Power System

    Publication Year: 2007, Page(s):32 - 36
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (5257 KB) | HTML iconHTML

    Small signal stability is the ability of the power system to maintain synchronism under small perturbations. Such perturbations occur continuously on the system because of the small variations in load and generation where the system continuously adjusts itself to changing conditions. Restoring forces acting on the machines help them to maintain stable conditions. The system must be able to operate... View full abstract»

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  • Determination of Spinning Reserve Deployment using an Extended Economic Dispatch to Include Line Flow Limits and Primary Frequency Regulation

    Publication Year: 2007, Page(s):37 - 41
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3986 KB) | HTML iconHTML

    This paper presents an economic and secure approach for rescuing frequency runaway after the loss of a generator unit using economic dispatch of primary reserve subject to frequency deviation and network constraints. The rapid primary frequency regulation reserve will be dispatched in an economic and secure manner as not to violate the transmission lines limits after the loss of a large generator ... View full abstract»

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  • Dynamic and Steady State Analysis of Boost Rectifier Supplying Voltage Sensitive Loads

    Publication Year: 2007, Page(s):42 - 46
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (4164 KB) | HTML iconHTML

    The modeling of boost rectifiers supplying linear and constant voltage loads has been given adequate attention up till now. However, the modeling of this type of rectifiers supplying voltage sensitive loads has not been properly addressed. This paper therefore focuses on the dynamic and steady state analysis of this type of rectifier system. The model equations for this type of rectifier system bo... View full abstract»

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  • Approximation of Generator Coherency Based on Synchronization Coefficients

    Publication Year: 2007, Page(s):47 - 51
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (5783 KB) | HTML iconHTML

    Dynamically coupled or coherent groups of generators are likely to occur between strongly connected generators connected to the system through weak or strained transmission lines. Establishing which machines in a system are dynamically coupled has shown to be helpful in identifying coherent areas for aggregation, providing insights into system stability, and for showing potential stability limits.... View full abstract»

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  • Analysis of DC Power Systems Containing Multiple Induction Motor-Drive Loads

    Publication Year: 2007, Page(s):52 - 57
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (5879 KB) | HTML iconHTML

    An analytical method used for conducting a power flow analysis on a DC power system containing multiple motor-drive loads is presented. The method is fast, simplistic, easy to implement, and produces results that are comparable to software packages such as PSPICE and Simulink. The method presented utilizes a simplified model of a voltage source inverter-fed induction motor that is based on the ste... View full abstract»

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  • Advanced Image Processing Techniques for Maximum Information Recovery

    Publication Year: 2007, Page(s):58 - 62
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (5816 KB) | HTML iconHTML

    Some radio frequency and optical sensors collect large-scale sets of spatial imagery data whose content is often obscured by fog, clouds, foliage and other intervening structures. Often, the obstruction is such as to render unreliable the definition of underling images. There are several typical mathematical methods used in image processing to remove interferences from images to include spectral m... View full abstract»

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  • Diagonal Recurrent Neural Network as an On-line Identifier for a Cold Flow Circulating Fluidized Bed

    Publication Year: 2007, Page(s):63 - 67
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3789 KB) | HTML iconHTML

    Circulating fluidized beds (CFB) are widely used in energy industries for increasing the efficiency and reducing environment pollution. CFB modeling and identification have significant importance for operation optimization. Owing to the nonlinear nature of CFB operation, online CFB modeling and identification are highly desirable so that the model can adjust itself according to the change of CFB o... View full abstract»

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  • Autoregressive Modeling of Layered Multi-Medium for EM Signal Processing

    Publication Year: 2007, Page(s):68 - 70
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2109 KB) | HTML iconHTML

    The authors present four lattice models of materials useful in describing multi-medium. The models are based on the coupled first order partial differential equations describing right-going and left going electromagnetic waves. Time variations are transformed out. Both scattering and transmission lattices for forward and backward spatial difference result from discrete versions of the wave equatio... View full abstract»

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  • An Image Processing Approach for Surface Characterization of the Foam Patterns

    Publication Year: 2007, Page(s):71 - 75
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (5644 KB) | HTML iconHTML

    This paper presents a technique for the detection and analysis of the surface characterization of foam patterns used in the lost foam casting process. The number of gaps (defects) among the beads on the pattern surface is used as the quality estimator, since the surface defects are the main cause of micro fatigue cracks in castings. The foam patterns images obtained have poor contrast and contain ... View full abstract»

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