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Filtering by: Creator Wallace, Joe D. Remove constraint Creator: Wallace, Joe D. Advisor Wallace, Alan K. Remove constraint Advisor: Wallace, Alan K.

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  • Performance and parameter prediction of large synchronous machines from physical dimensions

    Creator:
    Heberle, David D.
    Abstract:
    A project funded by the Southern California Edison (SCE) Company, Research Center of Irwindale, California, has supported the development of a performance and parameter prediction software program for use during the refurbishment of large synchronous machines, turbine generators, and synchronous condensers. The computer program was developed for SCE to allow...
    Resource Type:
    Masters Thesis
    Full Text:
    machines from physical dimensions AN ABSTRACT OF THE THESIS OF David D. Heber le for the degree of

  • Dynamic modeling, simulation and stability analysis of brushless doubly-fed machines

    Creator:
    Li, Ruqi
    Abstract:
    A brushless doubly-fed machine (BDFM) is a single-frame, self-cascaded induction machine capable of operating in both the induction and the synchronous modes. This thesis presents some important advances concerning dynamic modeling, simulation and analysis of the BDFM. Initially, a two-axis model and its associated parameters are developed and calculated. The...
    Resource Type:
    Dissertation
    Full Text:
    Approved: Dr. AlanK Wallace A brushless doubly-fed machine (BDFM) is a single-frame, self- cascaded

  • Preliminary studies on a magnetic elevator for solids (MES)

    Creator:
    Ranawake, Udaya A.
    Abstract:
    The thesis describes the preliminary studies on a laboratory model of a magnetic elevator intended as part of a system for circulating magnetic materials in chemical reactors. A multiple coil laboratory model, controlled by computer, was designed and constructed. Current measuring transducers were used to monitor system performance and study...
    Resource Type:
    Masters Thesis
    Full Text:
    Solids (MES) Redacted for Privacy Abstract approved : vi Alan K. Wallace The thesis describes the

  • General pole number model for the brushless doubly-fed machine

    Creator:
    Boger, Michael S.
    Abstract:
    The Brush less Doubly-Fed Machine (BDFM) has the potential to be a more cost effective replacement for conventional induction or synchronous machine drives. The BDFM has two stator windings: a power winding and a control winding. An electronic power converter of variable voltage and frequency is connected to the control...
    Resource Type:
    Masters Thesis
    Full Text:
    professor, Alan Wallace, who has helped guide my efforts and allowed me to concentrate on my work and

  • Design procedure for brushless doubly-fed machine used as a limited speed-range pump drive

    Creator:
    Alajmi, Abdulhadi M.
    Abstract:
    The continuing desire of industry to further improve process efficiency, through tighter control and energy conservation, has prompted users to pay closer attention to Adjustable Speed Drives (ASDs). The conventional ASDs consist of induction or synchronous motors controlled by power electronic controllers through the adjustment of supply frequency and line...
    Resource Type:
    Masters Thesis
    Full Text:
    approved : Alan K. Wallace The continuing desire of industry to further improve process efficiency

  • Passively controlled variable-speed generator system

    Creator:
    Bathon, Tobias Siegfried
    Abstract:
    This thesis presents both an analysis and simulations of a passively controlled variable-speed generator system, which can be applied for renewable energy sources such as wind turbines. Parallel connected passive/external resistors and inductors are connected to the slip rings of a wound rotor induction machine to provide an acceptable speed...
    Resource Type:
    Masters Thesis
    Full Text:
    System. Abstract approved: -- \"'//,-? Alan K. Wallace This thesis presents both an analysis and

  • Investigation, analysis and design of the linear brushless doubly-fed machine

    Creator:
    Seifkhani, Farroh
    Abstract:
    This thesis covers the efforts of the design, analysis, characteristics, and construction of a Linear Brush less Doubly-Fed Machine (LBDFM), as well as the results of the investigations and comparison with its actual prototype. In recent years, attempts to develop new means of high-speed, efficient transportation have led to considerable...
    Resource Type:
    Masters Thesis
    Full Text:
    : K. Wallace This thesis covers the efforts of the design, analysis, characteristics, and

  • Prediction of brushless DC drive performance considering non-sinusoidal parameter variations and asymmetrical operating conditions

    Creator:
    Spee, Rene
    Abstract:
    A highly flexible numerical simulation model for the performance prediction of brushless dc drives is presented, which is capable of investigating unbalanced and asymmetrical operating conditions as well as drives with non-ideal parameters. Numerical speed-up procedures allow for the investigation of pulse-width modulated (PWM) drives using a personal computer. Experimental...
    Resource Type:
    Dissertation
    Full Text:
    K. Wallace A highly flexible numerical simulation model for the performance prediction of

  • Development of a 300 Hp regenerative motor and generator test facility

    Creator:
    Lewis, Timothy M. (Timothy Michael)
    Abstract:
    A 300 hp motor and generator testing facility is being completed at Oregon State University. The testing center is the largest independent testing facility west of the Mississippi River. This regional resource center will incorporate state-of-the-art features that set it apart from other testing facilities. An induction machine with a...
    Resource Type:
    Masters Thesis
    Full Text:
    Regenerative Motor and Generator T t Facility. Abstract Approved: Wallace A 300 hp motor and generator

  • Three-dimensional finite element design procedure for the brushless doubly fed machine

    Creator:
    Thompson, Brenda E.
    Abstract:
    Brushless Doubly Fed Machines (BDFM) have potential advantages in variable speed generation and adjustable speed drive applications. The most significant of these advantages is a reduction in the power electronic converter rating, and therefore a reduction in overall system cost. Presently, efforts are being directed at optimizing the design of...
    Resource Type:
    Masters Thesis
    Full Text:
    . Wallace Brush less Doubly Fed Machines (BDFM) have potential advantages in variable speed generation and