Renewable Energy Systems

A special issue of Electronics (ISSN 2079-9292). This special issue belongs to the section "Power Electronics".

Deadline for manuscript submissions: closed (25 February 2014) | Viewed by 9850

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Guest Editor
Department of Electrical Engineering and Computer Science, University of Tennessee, Knoxville, TN 37996-2100, USA
Interests: power electronics; renewable energy systems; electric motor drives; fuzzy logic and neural network applications; electric and hybrid vehicles
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Special Issue Information

Dear Colleagues,

Energy is the lifeblood for continual progress of human civilization. As the world population is increasing and our living standard is growing, the demand for energy is increasing tremendously. Most of our current energy comes from fossil (such as, coal, oil and natural gas) and nuclear fuels which have limited resources. Fossil fuels have the disadvantage that they cause environmental pollution, particularly CO2 gas that causes global warming problem. Nuclear power plants have safety problem. Besides, nuclear waste remains radioactive for thousands of years that can cause long term damage to our society. Renewable energy sources like wind and photovoltaic are environmentally clean, safe, and have infinite resources that can be explored in economical manner. For these reasons, the whole world is now moving towards renewable energy systems. Denmark is the leader in wind energy usage, where 25% of energy is now supplied by wind, and it is expected to increase to 40% by 2030. Considering large energy usage in USA, only 3% is supplied by wind, and is expected to grow to 20% by 2030. The PV has the additional advantage of being static, and does not require any repair and maintenance. Currently, price for PV cells is decreasing dramatically, with a corresponding usage rate higher than wind power. It has been predicted that all of the world’s energy needs can be supplied by renewable sources with some bulk storage of energy. Hydroelectric power is already cheap and has established firmly. The wave, tidal and geothermal power resources are small, but are now being explored systematically. Renewable sources will play a very important role in future Smart Grid systems.

Prof. Dr. Bimal K. Bose
Guest Editor

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Keywords

  • wind energy systems
  • photovoltaic systems
  • solar thermal systems
  • fuel cell energy systems
  • wave energy systems
  • tidal energy systems
  • geothermal energy systems
  • autonomous and grid integrated systems

Published Papers (1 paper)

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Research

935 KiB  
Article
Compressed Air Energy Storage System Control and Performance Assessment Using Energy Harvested Index
by Hanif SedighNejad, Tariq Iqbal and John Quaicoe
Electronics 2014, 3(1), 1-21; https://doi.org/10.3390/electronics3010001 - 03 Jan 2014
Cited by 16 | Viewed by 9451
Abstract
In this paper a new concept for control and performance assessment of compressed air energy storage (CAES) systems in a hybrid energy system is introduced. The proposed criterion, based on the concept of energy harvest index (HEI), measures the capability of a storage [...] Read more.
In this paper a new concept for control and performance assessment of compressed air energy storage (CAES) systems in a hybrid energy system is introduced. The proposed criterion, based on the concept of energy harvest index (HEI), measures the capability of a storage system to capture renewable energy. The overall efficiency of the CAES system and optimum control and design from the technical and economic point of view is presented. A possible application of this idea is an isolated community with significant wind energy resource. A case study reveals the usefulness of the proposed criterion in design, control and implementation of a small CAES system in a hybrid power system (HPM) for an isolated community. Energy harvested index and its effectiveness in increasing the wind penetration rate in the total energy production is discussed. Full article
(This article belongs to the Special Issue Renewable Energy Systems)
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