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Filtering by: Creator Mendenhall, Von T. Remove constraint Creator: Mendenhall, Von T. Committee Member von Jouanne, Annette Remove constraint Committee Member: von Jouanne, Annette

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  • A novel control design for a wave energy converter

    Creator:
    Schacher, Alphonse A.
    Abstract:
    Ocean wave energy is rapidly becoming a field of great interest in the world of renewable energy. Significant advancements in design and technology are being made to make wave energy a viable alternative for our growing energy demands. The two major hurdles for ocean wave energy to make a significant...
    Resource Type:
    Masters Thesis
    Full Text:
    appreciation to my professors, Annette von Jouanne, Ted Brekken, and Alan Wallace. It is their enthusiasm for

  • DC bus capacitor discharge of permanent magnet synchronous machine drive systems for hybrid/electric vehicles

    Creator:
    Jin, Lei
    Abstract:
    Permanent magnet synchronous machines (PMSMs) are widely used in electric vehicles and hybrid electric vehicles to propel the wheels. Various control strategies have been developed for PMSM drive systems to achieve both high efficiency and safe operation. In a PMSM drive system, generally the high voltage battery and the power...
    Resource Type:
    Masters Thesis
    Full Text:
    cleverness is a given gift, kindness is a choice hard to make. Thank you also to Dr. Annette von Jouanne

  • Iterative reconstruction methods of CT images using a statistical framework

    Creator:
    Delgado, Diana
    Abstract:
    Medical imaging technologies play a vital role in early diagnosis of disease by providing internal images of the human body to medical professionals. Computed Tomography (CT) is currently the most commonly used medical imaging technology because it is easy to use, detectors and scanners are constantly improving, and more importantly,...
    Resource Type:
    Masters Thesis
    Full Text:
    served on my defense committee: Dr. Annette von Jouanne, Dr. Huaping Liu and Dr. Karen Shell, your

  • Dynamic modeling and mitigation of cascading failure in power systems

    Creator:
    Song, Jiajia
    Abstract:
    Recent blackout events consistently show that a variety of mechanisms are involved in cascading outages. These cascading mechanisms are irregularly modeled and validated within the existing literature and industry practices. Understanding the relative significance of these different mechanisms is important for choosing which one(s) needs to be modeled for specific...
    Resource Type:
    Dissertation
    Full Text:
    Group at Oregon State University. Special thanks to him and Dr. Annette von Jouanne for believing in

  • 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:
    have met in Portland. I would also like to thank Dr. Annette von Jouanne, Dr. Molly Shor, and Dr

  • Wind ramp prediction

    Creator:
    Alexander, Chianna M.
    Abstract:
    The number of wind turbines and wind farms in the Pacific Northwest has increased dramatically in the past six years, which represents a significant amount of electrical generation capacity connected to the public electric grid. However, the variable nature of wind sometimes introduces excessive power, or conversely shortages, in power...
    Resource Type:
    Masters Thesis
    Full Text:
    project. I would also like to thank the members of my research group Dr. Yokochi, and Dr. von Jouanne

  • Analysis and optimal sizing of an energy storage system for wind farm applications

    Creator:
    Yen, Zuan Z.
    Abstract:
    Modern wind energy is the technology of choice with a short payback period for increasing renewable energy portfolios. Bonneville Power Administration (BPA), a United States power authority in the Pacific Northwest expects to increase their wind energy capacity from 2,000 megawatts to 6,000 megawatts within the next five years. Currently...
    Resource Type:
    Masters Thesis
    Full Text:
    research opportunities I’ve had with Dr. Ted Brekken, Dr. Annette von Jouanne, and Dr. Alex Yokochi. Their

  • The effects of ocean variability and breaking waves on wave energy converter reliability and survivability

    Creator:
    Brown, Adam
    Abstract:
    The reliability and survivability of a wave energy converter (WEC) is highly dependent on the variability and non-linearity of the ocean itself. Ocean variability occurs on many time scales. Climate variability occurs decade-to-decade, and year-to-year in the number and intensity of winter storms. Seasonal variation of wave height and period...
    Resource Type:
    Dissertation
    Full Text:
    to thank Doctors Robert Paasch, Belinda Batten, Annette von Jouanne, Solomon Yim, and Ean Amon, who

  • Development of adaptive damping power take-off control for a three-body wave energy converter with numerical modeling and validation

    Creator:
    Zhang, Zhe
    Abstract:
    The performance of the power take-off (PTO) system for a wave energy converter (WEC) depends largely on its control algorithm. This paper presents an adaptive damping control algorithm that improves power capture across a range of sea states. Validation for the numerical model was performed using data from two sources;...
    Resource Type:
    Masters Thesis
    Full Text:
    major professors, Dr. Ted Brekken and Dr. Annette von Jouanne for their guidance and support

  • Hardware and software methods to improve and accelerate the development cycle of wave energy converters

    Creator:
    Tavakoli, Mike
    Abstract:
    With the ever-increasing demand and competition for global energy resources among nations, it is essential to explore and tap into various energy sources to reduce dependency on global markets. Renewable energy sources offer a significant opportunity to create localized and stable energy supplies. Ocean wave energy can be a promising...
    Resource Type:
    Masters Thesis
    Full Text:
    express my deepest appreciation to Dr. von Jouanne, and Dr. Brekken for giving me the opportunity to be