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Filtering by: Committee Member Cotilla-Sanchez, J. Eduardo Remove constraint Committee Member: Cotilla-Sanchez, J. Eduardo Academic Affiliation Electrical Engineering and Computer Science Remove constraint Academic Affiliation: Electrical Engineering and Computer Science

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  • Monte Carlo Tree Search with Fixed and Adaptive Abstractions

    Creator:
    Hostetler, Jesse A.
    Abstract:
    Monte Carlo tree search (MCTS) is a class of online planning algorithms for Markov decision processes (MDPs) and related models that has found success in challenging applications. In the online planning approach, the agent makes a decision in the current state by performing a limited forward search over possible futures...
    Resource Type:
    Dissertation
    Full Text:
    to abstraction α = 〈χ, µ〉 is given by Jα(h) = max a∈A Q∗(h, a)−Q∗(h, ↓π∗(h)). (3.9) 17 We now

  • Location Privacy Preservation for Optimal Sensing in Cognitive Radio Networks

    Creator:
    Grissa, Mohamed
    Abstract:
    Cognitive Radio Networks (CRNs) enable opportunistic access to the licensed channel resources by allowing unlicensed users to exploit vacant channel opportunities. One effective technique through which unlicensed users, often referred to as Secondary Users (SUs), acquire whether a channel is vacant is cooperative spectrum sensing. Despite its effectiveness in enabling...
    Resource Type:
    Masters Thesis
    Full Text:
    Profes­ sor Maggie Niess, Professor Lizhong Chen and Professor J. Eduardo Cotilla-Sanchez, for

  • A methodology to reduce the strain on hydro turbines using advanced life extending control of multiple energy storage systems

    Creator:
    Brosig, Sean G.
    Abstract:
    Over the last 20 years, there has been rapid growth in the amount of installed wind power in the Pacific Northwest, specifically in the Columbia River Gorge. The variable and non-dispatchable nature of this resource requires that it be balanced in some form by other sources on the grid. In...
    Resource Type:
    Masters Thesis

  • Electric Machine Capability Characterization for Actuators in Disaster Response Robots

    Creator:
    Li, Qianyun
    Abstract:
    Disaster response robots need to be simultaneously able to survive extreme environment and complete the mission efficiently and robustly. One of the determinants is the performance of the actuators in each joint, which drive the robot to the desired motion accurately. In robotics society, people usually build their robots directly...
    Resource Type:
    Masters Thesis
    Full Text:
    . Eduardo Cotilla-Sanchez, and Dr. Annette von Jouanne, as well as every fellow student for always

  • Environment-adaptive RF Sensing with Transferable ANN Features

    Creator:
    Wang, Guangxin
    Abstract:
    Radio frequency (RF) sensing arises as a promising option for enabling the internet of things (IoT) applications that transform our life into a world of smart homes, smart cities, and smart industries. The innovation of IoT reveals the benefits of RF sensing across cost, pervasiveness, unobtrusiveness, and privacy. However, challenges...
    Resource Type:
    Dissertation
    Full Text:
    grateful to my committee members Prof. Tejasvi Anand, Prof. Eduardo Cotilla-Sanchez, Prof. Jinsub Kim, and

  • Sliding Mode Control of Oscillating Water Column Wave Energy Converters

    Creator:
    Brown, Danielle R.
    Abstract:
    This thesis concerns the development of a direct torque control strategy using a sliding mode control approach to optimize the power output of an oscillating water column (OWC) wave energy converter (WEC). The OWC WEC is a device that has a submerged vertical tail tube open at both ends, which...
    Resource Type:
    Masters Thesis
    Full Text:
    Ibi = −( N∑ j=1 (A∞bibj z̈bj +A ∞ bipj z̈pj )) (2.7) F Ipi = −( N∑ j=1 (A∞pibj z̈bj +A ∞ pipj z̈pj

  • Computing Substation Fragility as a Function of Seismic Component Failure

    Creator:
    Stark, William D.
    Abstract:
    The electrical grid of the Western Interconnection is vulnerable to earthquake damage, especially large-magnitude megathrust events, due to the unique seismic profile of the region. However, the size of the Western Interconnection makes it difficult to model seismic failure in electrical substations to the level of detail necessary to improve...
    Resource Type:
    Masters Thesis
    Full Text:
    thanks to you that I have arrived here. As well, Dr. Eduardo Cotilla-Sanchez, whose enthusiasm is

  • Finite Element Analysis Modeling and Experimental Verification of Reflected Wave Phenomena in Variable Speed Machine Drive Cables

    Creator:
    Louie, Alex
    Abstract:
    Modern variable speed machine drive (VSMD) systems are used for a variety of purposes including generation, propulsion, pumps and compressors. They employ high switching frequency power electronics to drive the electric machine. The machine is subject to large voltage overshoot if long power cables, are used, called Reflected Wave Phenomena...
    Resource Type:
    Masters Thesis
    Full Text:
    skills under their direction. I would also like to thank Dr. Eduardo Cotilla-Sanchez and Dr. Ted Brekken

  • Development of a Hybrid Simulation for an Ocean Wave Energy Converter

    Creator:
    Harris, Jesse
    Abstract:
    Ocean Wave Energy Converters (WECs) are of interest around the globe as global economies begin to shift their interest to renewable forms of energy. However, the devices are costly to construct–a quality that can be relieved through proper modeling, control, and implementation. This paper presents the numerical and hybrid simulation...
    Resource Type:
    Masters Thesis
    Full Text:
    system: Φ ∝ Im = Vm jΩLm , (4.9) where Im ≈ Vs jΩLm . (4.10) Thus we can see from equations 4.9 and

  • Experimentation of Synchronous and Variable Speed Small Scale Hydropower Systems

    Creator:
    Jackson, Elliott C.
    Abstract:
    Hydropower is the one of the oldest renewable energy technologies and is wrongly thought of today as having little room to grow. The opportunity for new hydropower capacity is immense through both technology advancement and run-of-river new stream reach projects. Despite the age of hydropower, a divide in opinion is...
    Resource Type:
    Masters Thesis