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  • 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:
    regulates its operation according to voltage, frequency, and electricity price [4]. Grid Friendly

  • Novel control of a permanent magnet linear generator for ocean wave energy applications

    Creator:
    VanderMeulen, Aaron H.
    Abstract:
    Wave energy conversion devices are a rapidly growing interest worldwide for the potential to harness a sustainable and renewable energy source. Due to the oscillatory nature of ocean waves, the power generated from a permanent magnet linear generator (PMLG) for ocean wave energy conversion is pulsed. Focusing on direct drive...
    Resource Type:
    Masters Thesis
    Full Text:
    . o o c T H w π = (1.6) Wave Period (s) Wave Height (m) Velocity (m/s) 6 1.5 0.785 8 1.5

  • 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:
    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2.3 Performance Based Earthquake Engineering Approach . . . . . . . . . . . . 6 2.4 Guidelines

  • A high power emulation of a wind farm

    Creator:
    Lalla, Chelsea
    Abstract:
    As more wind farms are connected to the grid, the variable nature of wind energy begins to influence grid stability. Energy storage could help smooth the variable nature of wind energy. Laboratory demonstration and exploration of the interaction between different energy storage devices and wind energy could help improve and...
    Resource Type:
    Masters Thesis
    Full Text:
    time (s) V Figure 2.18: Output Phase Voltages 0 1 2 3 4 5 6 7 0 50 100 150 200 250 300

  • 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:
    of these different mechanisms is important for choosing which one(s) needs to be modeled for

  • A novel linear generator for wave energy applications

    Creator:
    Ernst, Steven George
    Abstract:
    With the increasing effort to identify alternative methods of energy generation, extraction of ocean energy has gathered a large interest. Research and industry have begun considering wave energy as the next new alternative energy. The unique challenges of ocean energy requires a wave energy converter to be both robust and...
    Resource Type:
    Masters Thesis
    Full Text:
    preferred as shown in Figure 3.3. 0 1 2 3 4 5 6 7 8 9 10 -20 0 20 40 60 80 100 120 140 Permanent

  • Extended Kalman Filter Simulink Model for Nonlinear System Modeling

    Creator:
    So, Ratanak
    Abstract:
    The objective of the work presented herein is the development of the extended Kalman filter for nonlinear system modeling. A standard Kalman filter is a well-known filter for estimating the state of a system, assuming the system is linear and it has a Gaussian distribution in its noise. In reality,...
    Resource Type:
    Masters Thesis
    Full Text:
    The Effect of Nonlinear Function on Gaussians 4 4 The Extended Kalman Filter 6 4.1 Taylor Series

  • 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:
    = 1,2,...n 6 two hours is very short term and greater than twelve hours is deemed long term[3][4

  • Development of biomimetic control strategies for the optimal use of renewable sources and energy storage systems

    Creator:
    Hapke, Hannes Max
    Abstract:
    In the year 2007, the worldwide energy consumption accumulated to a total of 16.5 billion MWh. While the resources of conventional energy production cause environmental damage, renewable energy sources like solar or wind power offer a solution to substitute for coal or nuclear generated power. Countries like Denmark and Spain...
    Resource Type:
    Masters Thesis
    Full Text:
    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 1.3 Biomimetic Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 1.4

  • 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:
    Float Average Power: H = 0.3 - 0.4 m 2 3 4 5 Wave Period (s) 0 100 200 300 400 500 P o w e r