Index Catalog // ScholarsArchive@OSU

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

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

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

A motor-generator and supercapacitor based system for microgrid frequency stabilization

Creator:: Crispo, Richard F.
Abstract:: This research introduces an energy storage system to deliver microgrid frequency response. A doubly-fed induction generator (DFIG) and a squirrel cage induction machine (SCIM) are coupled together as a motor/generator set to deliver an immediate inertial response to a change of frequency, and an inverter and supercapacitors deliver short term...
Resource Type:: Masters Thesis

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

Methods for short-term prediction of wind speeds in the Pacific Northwest Columbia Gorge wind farm region

Creator:: Davidson, James D.
Abstract:: Variable electrical generation (VG) sources such as wind farms are an increasing percentage of total electrical generation in the Bonneville Power Administration (BPA) balancing area and are starting to impact the ability of the regional balancing authority to control the electric grid. Wind farms are not dispatchable and challenge historical...
Resource Type:: Masters Thesis

Use of a model predictive control framework for optimal control of grid scale electrical energy storage in conjunction with a wind farm

Creator:: Antonishen, Michael P.
Abstract:: Over the last decade, wind penetration in the Pacific Northwest has increased rapidly. The variable nature of this massive new resource has increased stress on the hydropower resource to the point where system limits are currently being reached. In order to cultivate continued growth of the wind energy industry both...
Resource Type:: Masters Thesis
Full Text:: . Additionally, I would like to thank Dr. von Jouanne for her guidance and Dr. Yokochi for the tough

ScholarsArchive@OSU

A novel control design for a wave energy converter

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

Iterative reconstruction methods of CT images using a statistical framework

Dynamic modeling and mitigation of cascading failure in power systems

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

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

A motor-generator and supercapacitor based system for microgrid frequency stabilization

Passively controlled variable-speed generator system

Methods for short-term prediction of wind speeds in the Pacific Northwest Columbia Gorge wind farm region

Use of a model predictive control framework for optimal control of grid scale electrical energy storage in conjunction with a wind farm

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