Dissertation/Thesis Abstract

Energy neutral operation method for hybrid energy storage integrated with wind farm using C-rate and frequency spectrum analysis
by Seo, Young-Jun, M.S., The University of Wisconsin - Milwaukee, 2015, 53; 1592297
Abstract (Summary)

In this thesis, the author describes various evaluation criteria, in particular the C-rate (charge/discharge-rate), of energy storage (ES) systems to explain the efficiency and technical benefits of battery-ultracapacitor hybrid energy storage (HES), and the technical characteristics of subsequently derived short-duration and long-duration type ES. In addition, for effective use of energy storage, a straightforward state of charge (SOC) correction method for energy neutral operation is proposed, and through a simple comparative example of ES operation, the effectiveness of HES in relation to simple ES is explained. A case is considered in which a hybrid ES controls the wind power ramp rate to comply with the regional system operator’s smoothing requirement, and an operation method is suggested through simulation. The simulation is carried out using a frequency spectrum analysis of wind power output profile and the C-rate of the hybrid storage system, and an energy neutral operation method for ES is proposed based on the simulated charging/discharging power sharing profile and SOC variations of the Li-battery and the ultracapacitor.

Indexing (document details)
Advisor: Yu, David C.
School: The University of Wisconsin - Milwaukee
Department: Engineering
School Location: United States -- Wisconsin
Source: MAI 54/05M(E), Masters Abstracts International
Subjects: Alternative Energy, Electrical engineering
Keywords: Batteries, Battery storage, Energy storage
Publication Number: 1592297
ISBN: 978-1-321-87042-8
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