70,439 research outputs found

    Electromagnetic wave energy converter

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    Electromagnetic wave energy is converted into electric power with an array of mutually insulated electromagnetic wave absorber elements each responsive to an electric field component of the wave as it impinges thereon. Each element includes a portion tapered in the direction of wave propagation to provide a relatively wideband response spectrum. Each element includes an output for deriving a voltage replica of the electric field variations intercepted by it. Adjacent elements are positioned relative to each other so that an electric field subsists between adjacent elements in response to the impinging wave. The electric field results in a voltage difference between adjacent elements that is fed to a rectifier to derive dc output power

    Architecture Student Collaborates on Wave Energy Project Competing for $1.5 Million

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    Working with the Sea Potential team via Tinker Bristol, Andy Cole designed a scale model of the DUO Wave Energy Converter

    Research on spacecraft electrical power conversion

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    The steady state characteristics and starting behavior of some widely used self-oscillating magnetically coupled square wave inverters were studied and the development of LC-tuned square wave inverters is reported. An analysis on high amplitude voltage spikes which occur in dc-to-square-wave parallel converters shows the importance of various circuit parameters for inverter design and for the suppression of spikes. A computerized simulation of an inductor energy storage dc-to-dc converter with closed loop regulators and of a preregulating current step-up converter are detailed. Work continued on the computer aided design of two-winding energy storage dc-to-dc converters

    Wave Energy: a Pacific Perspective

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    This is the author's peer-reviewed final manuscript, as accepted by the publisher. The published article is copyrighted by The Royal Society and can be found at: http://rsta.royalsocietypublishing.org/.This paper illustrates the status of wave energy development in Pacific Rim countries by characterizing the available resource and introducing the region‟s current and potential future leaders in wave energy converter development. It also describes the existing licensing and permitting process as well as potential environmental concerns. Capabilities of Pacific Ocean testing facilities are described in addition to the region‟s vision of the future of wave energy

    DESIGN AND MODELLING OF CONVERTER FOR WAVE ENERGY

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    World energy consumption is increasing by year. This fact has led to extensive researches conducted in utilizing renewable energy all around the world as the alternative. Wave energy is one of the alternative energies that have high potential to be developed. However because of the nature of ocean wave which is random in term of amplitude and frequency, the generated voltage from Wave Energy Converter (WEC) will be non-uniform and unstable. This non-uniform voltage output from WEC cannot be directly used and thus an intermediate system between the WEC and load is needed. This project entitled “Design and Modelling of Converter for Wave Energy” is focusing on developing the intermediate system which is voltage conversion system. It aims to design wave energy converter in stabilizing the output voltage from the generator so that it is suitable to be used with load and at the same time conduct extensive literature review on the previous technologies. WEC that will be considered in this project is Resen Wave LOPF Buoy that is available in UTP Offshore Lab with the maximum output AC voltage of 15 V. Literature review is conducted onto the type of converters that can be implemented to convert AC voltage. From the study carried out, AC-DC-AC converter is the most suitable converter type to be used with renewable energy. Next, extensive literature review on three previous technologies has also been completed and from the review done; a proposed design of converter is introduced
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