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Power Source Buffering using a Triangular Modular Multilevel Converter with Energy Storage

Cardoza, Alvaro (2016) Power Source Buffering using a Triangular Modular Multilevel Converter with Energy Storage. Master's Thesis, University of Pittsburgh. (Unpublished)

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As power systems throughout the world continue to utilize DC infrastructure within distributed generation solutions and microgrid designs, an effective DC-DC interfacing power electronic device must be developed for managing power flow and power quality levels between a system’s increasingly diversified array of sources and loads. DC-DC power electronic interfaces are continuing to gain increased attention throughout many distribution applications, including the information and communication technology (ICT), electric vehicle, and renewable generation industries.
The research effort described herein explores the use of a multi-port DC-DC modular multilevel converter interfacing a dual-input connection of a 380 VDC system and a 42.9 VDC/ 40.7 A photovoltaic panel with a 96 VDC output resistive load. Ultracapacitors are used to power-buffer the input signal and in this application, the inherently intermittent solar panel output. This technology represents the merits of utilizing a singular interfacing device to consolidate the flows between joint generation and load, while maintaining stable output power through the use of a modular energy storage solution.
This work will detail the operation and control of the DC-DC converter and its module-interfaced power buffering solution, as well as provide design methodologies for the system described.


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Item Type: University of Pittsburgh ETD
Status: Unpublished
CreatorsEmailPitt UsernameORCID
Cardoza, Alvaroadc48@pitt.eduADC48
ETD Committee:
TitleMemberEmail AddressPitt UsernameORCID
Committee CoChairKwasinski, Alexisakwasins@pitt.eduAKWASINS
Committee CoChairReed, Gregorygfr3@pitt.eduGFR3
Committee MemberMao, Zhi-Hongzhm4@pitt.eduZHM4
Committee MemberMcDermott, Thomastem42@pitt.eduTEM42
Date: 15 September 2016
Date Type: Publication
Defense Date: 7 July 2016
Approval Date: 15 September 2016
Submission Date: 26 July 2016
Access Restriction: No restriction; Release the ETD for access worldwide immediately.
Number of Pages: 108
Institution: University of Pittsburgh
Schools and Programs: Swanson School of Engineering > Electrical Engineering
Degree: MS - Master of Science
Thesis Type: Master's Thesis
Refereed: Yes
Uncontrolled Keywords: Power Electronics, Energy Storage, Ultracapacitors, Photovoltaic, Modular Multilevel Converter, Power Smoothing
Date Deposited: 15 Sep 2016 19:45
Last Modified: 15 Nov 2016 14:35


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