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Filtering by: Creator Wallace, Joe D. Remove constraint Creator: Wallace, Joe D. Degree Field Electrical and Computer Engineering Remove constraint Degree Field: Electrical and Computer Engineering

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  • Use of multiple loop model for brushless doubly fed machine rotor design

    Creator:
    Kemp, Alson R.
    Abstract:
    The Brushless Doubly Fed Machine (BDFM) is receiving attention as a candidate for use in adjustable speed drives (ASDs) and variable speed generators (VSGs). With a large percentage of a drive or generator system's cost due to power electronics content, considerable research has been conducted to find drives in which...
    Resource Type:
    Masters Thesis
    Full Text:
    of Multiple Loop Model for Brushless Doubly Fed Machine Ro Design Abstract approved: A Wallace

  • Testing and modeling of the single-phase Written-Pole Motor

    Creator:
    Chis, Lucian
    Abstract:
    A relatively new development in the electric machines field has been the written-pole technology, of which the latest product is the large single-phase electric motor, the single phase Written-Pole Motor (WPM). The WPM is a synchronous, permanent-magnet single-phase motor having a weak rotor cage for start-up which in addition exhibits...
    Resource Type:
    Masters Thesis
    Full Text:
    Written-Pole Motor Abstract approved. Alan Wallace A relatively new development in the electric

  • 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