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Design of an efficient energy harvester from ambient vibration

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dc.contributor.advisor Rahman, Mossaddekur Rahman, Tasfia Rahman, Syedur Onna, Shawzia Dewan 2012-05-28T09:37:36Z 2012-05-28T09:37:36Z 2012 2012-04
dc.identifier.other ID 09221117
dc.identifier.other ID 09221119
dc.identifier.other ID 09221055
dc.description This thesis report is submitted in partial fulfillment of the requirements for the degree of Bachelor of Science in Electrical and Electronic Engineering, 2012. en_US
dc.description Cataloged from PDF version of thesis report.
dc.description Includes bibliographical references (page 63-65).
dc.description.abstract The aim of this thesis was to design and an efficient energy harvester from ambient vibrations. An energy harvester is merely a device that will convert ambient energy into some usable electrical energy. In this work we designed a vibration energy harvester using electromagnetic transduction mechanism. The system consists of a fixed (movable) magnet and a movable (fixed) coil attached to a spring. When under vibration, relative motion between the fixed magnet and a moving coil or between the moving magnet and a fixed coil created a time varying flux linkage to the coil, thus inducing an electro-magnetic force. The electrical energy thus extracted from these vibrations need to be stored, using a battery charger circuit, and later on this may be used to drive electronic gadgets, self-powered micro-systems and wireless sensor network. In this work we designed the electro-mechanical energy harvesting system for optimum performance for a range of vibration energy and frequency, starting from 300-350Hz and studied the impact of difference device parameters, such as, size of the mass (510mg), stiffness of the spring, number of turns and dia of the coil. A charge controller circuit to store the generated electrical energy can be designed for implementation. en_US
dc.description.statementofresponsibility Tasfia Rahman
dc.description.statementofresponsibility Syedur Rahman Sakir
dc.description.statementofresponsibility Shawzia Dewan Onna
dc.publisher BRAC University en_US
dc.rights BRAC University thesis are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission.
dc.subject Electrical and electronic engineering
dc.title Design of an efficient energy harvester from ambient vibration en_US
dc.type Thesis en_US
dc.contributor.department Department of Electrical and Electronic Engineering, BRAC University B. Electrical and Electronic Engineering

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