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Full-Text Articles in Engineering
Improvements Of Hybrid Ac/Dc House Prototype, Arden Abude
Improvements Of Hybrid Ac/Dc House Prototype, Arden Abude
Electrical Engineering
This is an iteration from previous designs of the Hybrid AC/DC House with a systematic addition of a portable AC power supply unit. This iteration for the Hybrid AC/DC House is an innovation of independence for sustainable housing solutions. It will serve as an alternative for rural communities needing power to rely on self-sustainable microgrids rather than large-scale AC electric grids. The addition of a portable AC power supply would allow the microgrid to remove its reliance on AC power from the larger grid and would elevate the system to complete energy independence. The microgrid has DC power generated from …
2021 Department Of Energy Collegiate Wind Competition Electrical System, Grayson Capers, Shane Alayvilla, Justin Rodrigues
2021 Department Of Energy Collegiate Wind Competition Electrical System, Grayson Capers, Shane Alayvilla, Justin Rodrigues
Electrical Engineering
In this work, the implementation of the electrical system for Cal Poly’s 2021 Department of Energy Collegiate Wind Competition turbine is described. The mission of this project was to complete the turbine testing tasks to the best of the team’s ability. This system includes an off the shelf slotless permanent magnet synchronous generator and rectifier to produce a DC voltage. To maximize the power output at below-rated wind speeds, current sensors, voltage sensors, and a dynamic load with variable resistance were designed and tested. To curtail the power and rotor speed in high wind events, the turbine was equipped with …
An Integrated Resource Plan For Arizona Public Service Electric (Aps), Irene Boghdadi, Randy Chiu
An Integrated Resource Plan For Arizona Public Service Electric (Aps), Irene Boghdadi, Randy Chiu
Master's Projects and Capstones
Our Masters Capstone Project is an Integrated Resource Plan (IRP) for Arizona’s largest electric utility, Arizona Public Service Electric (APS).
An IRP is developed by utilities to identify the optimal combination of demand- and supply-side resources needed to reliably meet forecasted demand for energy and capacity, including a planning reserve margin, over a future period.
In addition to APS’s obligation to serve the growing load in Arizona while minimizing costs, it is required by the state to adhere to the Renewable Energy Standard (RES) policy of 15 percent retail sales from renewable energy resources by 2025.
The analysis described in …
Dc-Dc Buck-Boost Converter For Energy Harvesting From Exercise Equipment, David T. Bolla
Dc-Dc Buck-Boost Converter For Energy Harvesting From Exercise Equipment, David T. Bolla
Electrical Engineering
This senior project helps harvest the excess energy that exercise equipment generates. Sustainable energy acts as the main target for this project, and it attempts this through reusing the energy created when exercising on elliptical machines. An elliptical machine outputs voltages between approximately 5V and 60V, and a micro-inverter requires an input voltage of about 36V. This DC-DC converter takes the variable output voltage of an elliptical machine and brings it to approximately 36V. Re-purposing the excess energy an elliptical user creates for the grid provides a sustainable alternative to dissipating the energy as heat. This project, along with other …
Microgrid Renewable Energy Integration, Do Quang Thanh Vo
Microgrid Renewable Energy Integration, Do Quang Thanh Vo
Electrical Engineering
The Microgrid is a small-scale electrical system that is designed to give Cal Poly students hands-on experience on power generation, system protection, distribution, and automation that would otherwise be very difficult to experiment in a large-scale model.
To closely replicate the modern electrical grid, a renewable energy source shall be added to the Microgrid in conjunction with the existing synchronous generators. Electrical engineering student, Virginia Yan initiated this effort, namely Grid-Tied Solar System project [1], by designing and constructing a set of solar panels and microinverter for future connection to the Microgrid. The scope of Virginia’s project was, however, limited …
Dc House Solar Panel Cleaner, Sarahanne Heredia, Sophia Deguia
Dc House Solar Panel Cleaner, Sarahanne Heredia, Sophia Deguia
Electrical Engineering
Solar panels lose 0.05% of their power conversion efficiency per day due to soil accumulation, according to an experiment conducted by the University of California, San Diego in 2013 [18]. The project is an electro-mechanical cleaning system that effectively and efficiently cleans solar panels at set intervals. A drip irrigation system with spray jets was attached to a water pump and Arduino, both powered by the DC House Project solar panel battery. The DC House solar panel was the targeted panel set up for the project. Several components of the design could have been chosen more optimally for the system; …
Contributions To Hybrid Power Systems Incorporating Renewables For Desalination Systems, Nasser Alawhali
Contributions To Hybrid Power Systems Incorporating Renewables For Desalination Systems, Nasser Alawhali
Theses and Dissertations--Electrical and Computer Engineering
Renewable energy is one of the most reliable resource that can be used to generate the electricity. It is expected to be the most highly used resource for electricity generation in many countries in the world in the next few decades. Renewable energy resources can be used in several purposes. It can be used for electricity generation, water desalination and mining. Using renewable resources to desalinate the water has several advantages such as reduce the emission, save money and improve the public health. The research described in the thesis focuses on the analysis of using the renewable resources such as …
Solar Roller - Solar Powered Usb Charging Station, Aaron Bartfeld, Tanner Mjelde, Kaylan Naicker
Solar Roller - Solar Powered Usb Charging Station, Aaron Bartfeld, Tanner Mjelde, Kaylan Naicker
Electrical Engineering
As the necessity for renewable energy increases, solar power becomes more and more prevalent. At the same time, as technology increases, the necessity for charging one’s electronic devices also increases. The Solar Roller merges solar energy with the ability to charge one's electronic device in one compact cart. The Solar Roller is a solar-powered USB charging station that allows people of all backgrounds to develop a better understanding of alternative fuels, while charging their USB device. It has a touch screen display that provides voltage levels of the battery as well as a TV that displays solar powered information. The …
Hybrid Water Pump, Dylan W. Grant, Wei Chen Yeh
Hybrid Water Pump, Dylan W. Grant, Wei Chen Yeh
Electrical Engineering
This project seeks to use multiple sources to power a water pump. We will design a system which will combine inputs from solar and wind energy production to ensure the pump will have enough power to run. This will create a system powered by clean energy and will be self-sustained once completed. This will theoretically create a more sustainable source of power for the pump than only one of the sources. Because the power sources don’t require outside inputs (aside from sun and wind), the pump can be placed in a remote area. This could be very helpful in developing …
Dc House Energy Management System, Zachary L. Eldredge, Zoe M. Hay
Dc House Energy Management System, Zachary L. Eldredge, Zoe M. Hay
Electrical Engineering
In this work, a previously completed proof of concept for an Energy Management System (EMS) for the DC House project has been revised and re-implemented. The implemented design changes will improve the performance and reproducibility of the system. This new design of the EMS replaces the two-separate buck and boost DC-DC converters with a single bidirectional DC-DC converter to reduce components and improve efficiency. Analysis of the bidirectional DC-DC converter shows high efficiency especially at larger load currents. The code of the previous work was updated for smoother operation as well as to accommodate an LCD capable of displaying more …
Application Of A High-Performance Optically Enhanced Solar Thermal Collector System, Timothy H. Cameron
Application Of A High-Performance Optically Enhanced Solar Thermal Collector System, Timothy H. Cameron
Honors Theses
In an effort to make Union College a more environmentally friendly campus, this research project focuses on the application of Union’s liquid-based solar thermal collector system. The motivation for this research project is due to the increasing demand for renewable energy sources in order to decrease our society’s dependence on fossil fuels. The system features nine, 16-tube, evacuated tube solar modules which absorb radiant solar energy from the sun. Through a two loop system, thermal energy is stored in water within two-80 gallon storage tanks. This research project involves the design, construction, and analysis of two applications in order to …
Merry-Go-Round Human Powered Generator, Daniel Barnicle, Dario Romero
Merry-Go-Round Human Powered Generator, Daniel Barnicle, Dario Romero
Electrical Engineering
This project entails the design and construction of a Merry-Go-Round Human Powered Generator for the DC House project. The Merry-Go-Round Human-Powered-Generator is a sustainable project focusing on utilizing renewable human mechanical energy. As young children play on the Merry-Go-Round, the generator converts the mechanical energy to electrical energy for the DC House. The Merry-Go-Round Generator boosts the generated voltage output to power a battery. This electrical energy then transfers from the battery to the DC House to provide power to it.
Multiple Input Single Output (Miso) Tablet/ Phone Charger, Kevin Wong
Multiple Input Single Output (Miso) Tablet/ Phone Charger, Kevin Wong
Master's Theses
This thesis entails the design and implementation of a multiple input single output (MISO) DC-DC converter using the flyback topology to charge tablets/ smartphones or any USB powered portable device. The MISO converter will enable the use of various renewable energy sources such as a solar panel/ rechargeable battery combination, bicycle dynamo, hydroelectric power, and wind turbine. This paper will cover the design, simulations, and test results of the MISO converter. The flyback topology was chosen due to its low part count and its efficiency at low power. The proposed converter has a nominal 12V input to output USB 2.0 …
Modeling And Analysis Of A Photovoltaic System With A Distributed Energy Storage System, Anthony Winston Ma
Modeling And Analysis Of A Photovoltaic System With A Distributed Energy Storage System, Anthony Winston Ma
Master's Theses
As California continues to integrate more renewable energy into its electrical system, the state has experienced a corresponding rise in photovoltaic system installations. PV arrays are a unique source of power generation in that they are affected by the location of the sun, shading, and temperature changes. These characteristics make solar one of the most highly variable forms of renewable energy. In order to improve solar power’s consistency, PV systems require a supplemental source of power. The primary focus of this paper is to determine if distributed energy storage systems can be used to reduce the effect of solar intermittency. …
Benefits Of Near-Term Cloud Location Forecasting For Large Solar Pv, Timothy Robert Rudd
Benefits Of Near-Term Cloud Location Forecasting For Large Solar Pv, Timothy Robert Rudd
Master's Theses
As the ‘green’ energy movement continues to gain momentum, photovoltaic generation is becoming an increasingly popular source for new power generation. The primary focus of this paper is to demonstrate the benefits of close-to real-time cloud sensing for Photovoltaic generation. In order to benefit from this close-to real-time data, a source of cloud cover information is necessary. This paper looks into the potential of point insolation sensors to determine overhead cloud coverage. A look into design considerations and economic challenges of implementing such a monitoring system is included. The benefits of cloud location sensing are examined using computer simulations to …