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High Performance Distributed On-Chip Voltage Regulation For Modern Integrated Systems, Longfei Wang
High Performance Distributed On-Chip Voltage Regulation For Modern Integrated Systems, Longfei Wang
USF Tampa Graduate Theses and Dissertations
Distributed on-chip voltage regulation where multiple voltage regulators are distributed among different locations of the chip demonstrates advantages as compared to on-chip voltage regulation utilizing a single voltage regulator. Better on-chip voltage noise performance and faster transient response can be realized due to localized voltage regulation. Despite the advantages of distributed on-chip voltage regulation, unbalanced current sharing issue can occur among each voltage regulator, which has been demonstrated to deteriorate power conversion efficiency, stability, and reliability of the power delivery network. An effective balanced current sharing scheme that can be applied to most voltage regulator types is proposed to balance …
Dynamic Phasor Based Analysis And Control In Renewable Energy Integration, Lakshan Prageeth Piyasinghe
Dynamic Phasor Based Analysis And Control In Renewable Energy Integration, Lakshan Prageeth Piyasinghe
USF Tampa Graduate Theses and Dissertations
The objective of this dissertation is to carry out dynamic modeling, analysis and control of power systems with Renewable Energy Sources (RES) such as: Photovoltaic (PV) power sources and wind farms. The dissertation work is mainly focused on microgrid since it plays a major role in modern power systems and tend to have higher renewable power penetration. Two main theoretical concepts, dynamic phasor and impedance modeling have been adopted to model and analyze the power systems/mocrogrids with RES. The initial state calculation which is essential for small signal analysis of a system is carried out as the first step of …
Modeling, Analysis And Control Of Voltage-Source Converter In Microgrids And Hvdc, Ling Xu
Modeling, Analysis And Control Of Voltage-Source Converter In Microgrids And Hvdc, Ling Xu
USF Tampa Graduate Theses and Dissertations
The objective of this dissertation is to carry out dynamic modeling, analysis and control for Voltage-Source Converters (VSC). Two major applications of VSC will be investigated in this dissertation: microgrid application and High Voltage Direct Current (HVDC) application.
In microgrid applications, VSC is used to integrate distributed energy sources such as battery and provide system functions: such as real and reactive power regulation, voltage and frequency support during islanding condition, and abnormal system condition mitigation. In HVDC applications, VSC is used to interconnect dc systems with ac systems. The functions supplied by VSC are similar to that in microgrids. However, …