Application of output power density in power electronics converter circuits




















Within a single century, personal transportation has progressed from the horse and buggy to nearly a billion private automobiles. It is projected that the need for personal mobility will grow even faster, as large numbers of people are lifted out of poverty in developing countries and demand transportation. Emissions from oil-burning automobiles clog our air and contribute to global warming. For all of these reasons, finding an alternative to oil for private transportation is imperative.

Although several alternatives can propel a car, only one is readily available today: Electricity. With the introduction of electric propulsion, a completely new drivetrain is introduced in the vehicle requiring multidisciplinary research into system components.

The Electric vehicle system is comprised of electric motor, power electronics converters, and energy storage devices such as batteries. In addition, the overall system must be optimized to maximize overall system efficiency. Finally, to reduce the overall transportation emissions, the vehicle energy storage device should be recharged at times when the grid power production is most efficient and non-polluting.

NCSU research on electric vehicle systems focuses on extending the vehicle range by developing more efficient subsystems and including storage systems with higher energy and power densities. Another research topic focuses on development of fundamental and enabling technologies that will facilitate the electric power industry to actively manage and control large amount of plug-in vehicle charging.

Electronic Energy Systems Packaging including power electronics packaging encompasses technologies focused on the physical implementation of power electronic and energy storage systems. Electrical engineers develop circuits and schematics, but what is eventually delivered to a customer are electro-physical circuits concurrently designed and combined into a hardware system. These hardware systems must meet metrics, such as power, weight, and size densities; government and industry standards; and reliability.

Understandably, this research is broad-based and multidisciplinary with studies in electric, magnetic, thermal and mechanical components and circuits. The NCSU research focus is on high-frequency, high-density topologies that use ultrafast-switching power semiconductors, and the materials and fabrication processes to create such topologies.

Applications are in new integrated power systems from chip to ship including land-based smart grid power systems; electric vehicle converters and drives; high performance power supplies for aerospace, telecom and DC distribution systems; and ultrafast fault protectors using the latest in SiC and GaN semiconductors.

Those interested in this area would find it advantageous to have had primary study in power electronics and physics with strong interests in heat transfer, materials or structural mechanics.

Power electronics is the technology associated with the efficient conversion, control and conditioning of electric power by static means from its available input form into the desired electrical output form.

Power electronic converters can be found wherever there is a need to modify the electrical energy form i. Large scale power electronics are used to control hundreds of megawatt of power flow across our nation. Research in this area includes power electronics applications to control large scale power transmission and distribution as well as the integration of distributed and renewable energy sources into the grid.

Documents: Advanced Search Include Citations. Authors: Advanced Search Include Citations. Yahaya , K. Begam , M. Offered by. University of Colorado Boulder CU-Boulder is a dynamic community of scholars and learners on one of the most spectacular college campuses in the country. Start working towards your Master's degree. If you are admitted to the full program, your courses count towards your degree learning.

Learn More. Syllabus - What you will learn from this course. Week 1. Video 5 videos. A Brief Introduction to the Course 2m. Lecture Reading 4 readings. Course Syllabus 10m. Study Problems on Basic Magnetics 10m. Magnetics Design Tables 10m. Homework Assignment 10m. Quiz 1 practice exercise. Homework Assignment 1: Basic Magnetics 3h. Week 2. Video 7 videos. Reading 2 readings. Study Problems 10m. Week 3.

Video 8 videos. Copper Loss 11m. Reading 1 reading. Homework Assignment 3: Inductor Design 10m. HW3: Inductor Design 2h 30m. Week 4. Homework Assignment 4: Transformer Design 10m.

HW4: Transformer Design 2h 30m. Reviews 4. About the Power Electronics Specialization. Frequently Asked Questions When will I have access to the lectures and assignments? If you don't see the audit option: The course may not offer an audit option.

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