creator Gu, Ran advisor Krishnamurthy, Mahesh The solution to deal with the current non-renewable energy crisis, global warming, pollution and green gas emission is to reduce fossil fuels usage and increase use of renewable sources of energy with minimal environmental impact. Solar energy and wind energy have gained significant popularity as natural resources across the world. However, these renewable energies bring new challenges to the control of power systems and distributed generation since they depend on natural elements that can be unpredictable and intermittent. One way to address the intermittency of these resources is to transfer energy in to an energy storage device. Historically, a battery has been viewed as one of the primary energy storage devices. Even though some battery can have high efficiency, they can be limited by the size and volume required to store a large amount of energy. In addition, they can also cause environmental pollution owing to the chemicals used and tend to have a high cost and short life. A novel hybrid energy storage system, which comprises of an integrated hydroelectric-compressed air solution have been proposed in this thesis. Three potential configurations have been outlined, where energy is provided by wind and solar energy. To extract maximum power from wind, solar and water, maximum power point tracking (MPPT) techniques for both renewable sources have been proposed. For researching the interaction between charging and discharging elements, extensive simulations have been conducted using Matlab/ Simulink. Submitted by Dana Lamparello (dlampare@iit.edu) on 2012-08-23T16:42:52Z No. of bitstreams: 2 Ran Gu MS Thesis final version.pdf: 2237884 bytes, checksum: e7f6138bcc22b0681562432469719bb0 (MD5) signed title page.pdf: 192196 bytes, checksum: 5f2291c513a7ae0dd05ef3a7385dfdda (MD5) Made available in DSpace on 2012-08-23T16:42:52Z (GMT). No. of bitstreams: 2 Ran Gu MS Thesis final version.pdf: 2237884 bytes, checksum: e7f6138bcc22b0681562432469719bb0 (MD5) signed title page.pdf: 192196 bytes, checksum: 5f2291c513a7ae0dd05ef3a7385dfdda (MD5) Previous issue date: 2012-05 M.S. in Electrical Engineering, May 2012 2012-04-26 2012-05 http://hdl.handle.net/10560/2843 en Thesis born digital application/pdf In Copyright http://rightsstatements.org/page/InC/1.0/ Restricted Access ECE / Electrical and Computer Engineering Illinois Institute of Technology Affiliated department