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Filtering by: Creator Ekstrom, Julia A. Remove constraint Creator: Ekstrom, Julia A. Committee Member Cotilla-Sanchez, Eduardo Remove constraint Committee Member: Cotilla-Sanchez, Eduardo

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  • Low Frequency Oscillation Reduction Algorithm for Six-step Operation of Three-Phase Inverters

    Creator:
    Ke, Ziwei
    Abstract:
    A power inverter, or inverter, is an electronic device or circuitry that converts direct currents (DC) to alternating currents (AC) in the power electronics family. A three-phase inverter converts DC current to three-phase AC current. Inverters, especially three-phase inverters, have been widely used in many fields including renewable energy applications...
    Resource Type:
    Masters Thesis
    Full Text:
    Abstract approved: Julia Zhang A power inverter, or inverter, is an electronic device or circuitry that

  • Rapid Grid State Estimation using Singular Value Decomposition

    Creator:
    Kulkarni, Janhavi
    Abstract:
    Synchrophasor technology has gained great momentum with the widely adopted concept of smart grids in power systems at transmission and generation level. This has led to an improved state estimation of a power system with the advent of Phasor Measurement Units (PMU). PMUs contribute in providing real-time information about the...
    Resource Type:
    Masters Thesis
    Full Text:
    approved: _____________________________________________________________________ Ted K. A

  • 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:
    Speed Machine Drive Cables Abstract approved: Annette R. von Jouanne Julia Zhang Modern variable

  • Development and Experimental Hardware Validation of Novel Variable Speed Hydropower Control Schemes for Emerging Applications and Water Resource Paradigms

    Creator:
    Starrett, Michael A.
    Abstract:
    Recent opportunities for new hydropower generation in the United States have often been in non-powered dams and run-of-river type flows occurring in low-impact natural areas and unregulated conduits. At the same time, a changing water resource paradigm is challenging some existing generation in drought stricken areas where supply reservoirs behind...
    Resource Type:
    Dissertation
    Full Text:
    Dr. Julia Zhang. The Energy Systems faculty group is a tremendous asset to the student members and I

  • Validation of Wave Energy Converter Models and the Development of Control Strategies in WEC-Sim

    Creator:
    So, Ratanak
    Abstract:
    When the term renewable energy is mentioned in a conversation, wind, solar, and hydro energy typically come to mind. However, there is one major resource that has remained mostly untapped: wave energy. Wind and solar power technologies are well established around the world but they cannot generate electricity all the...
    Resource Type:
    Dissertation
    Full Text:
    approved: Ted K.A. Brekken When the term “renewable energy" is mentioned in a conversation, wind, solar

  • Methodology for evaluating mechanical power in small-scale WEC experiments

    Creator:
    Simmons, Asher
    Abstract:
    Wave energy converters (WECs) are a broad class of emerging technology that converts hydrokinetic energy into some other useful form, such as electricity. The last stage in this transformation, the power take-off (PTO) subsystem, is often not experimentally evaluated until half-way through the recommended development process. This delay in evaluation...
    Resource Type:
    Dissertation
    Full Text:
    converters (WECs) are a broad class of emerging technology that converts hydrokinetic energy into some

  • Design and Implementation of a Frequency Controlled Electric Hot Water Heater Retrofit Thermostat

    Creator:
    Johanesen, Mackenzie S.
    Abstract:
    This design of a Grid Friendly Electric Hot Water Heater Thermostat was built for the Electrical and Computer Engineering Senior Design course, ECE44x. The design enables hot water heaters to respond to imbalances in the grid seen through deviations from standard grid frequency by varying the power output to the...
    Resource Type:
    Honors College Thesis
    Full Text:
    Design and Implementation of a Frequency Controlled

  • 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:
    : Computing Substation Fragility as a Function of Seismic Component Failure Abstract approved: Ted K.A

  • Impacts of Prediction on Wave Energy Converter Control

    Creator:
    Comard, Colin Q.
    Abstract:
    Ocean waves provide a promising source of renewable energy for the North American electric grid. However, ideal control of wave energy converters (WECs) requires perfect forecasting of future wave conditions, and waves can be unpredictable. This paper presents a comparison of three different prediction methods and analyzes their performance in...
    Resource Type:
    Masters Thesis
    Full Text:
    provide a promising source of renewable energy for the North American electric grid. However, ideal

  • Evaluating the seismic risk and resilience of an electrical power system

    Creator:
    Chalishazar, Vishvas H.
    Abstract:
    The Pacific Northwest is part of the "Ring of Fire," which is well-known for heavy seismic activity. Numerous active faults in the area have encouraged electric grid managers in the region to more deeply contemplate and proactively intervene to support grid resilience. This research introduces Monte Carlo (MC) based power...
    Resource Type:
    Dissertation
    Full Text:
    Engineering (PBEE) method. To apply the PBEE method on a power system, a conversion of the traditional Bus