Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 22 for “"Power Flow Control"”.
-
Independent power flow control of multiple energy sources using a single electric machine
In this thesis, an independent power flow control of different energy sources connected to a single electric machine with a multitude of three-phase winding sets has been investigated. These machines are highly suitable for high power and critical applications. Additionally, these machines utilise …
-
Nonlinear optimization approach for UPFC power flow control and voltage security: Sufficient system constraints for optimality
… optimization algorithm for the long term control of Unified Power Flow Controller (UPFC) to remove overloads and voltage violations by optimized control of power flows and voltages in the power network. It provides a control strategy for finding the long term control settings of one or …
-
A Wide Range and Precise Active and Reactive Power Flow Controller for Fuel Cell Power Conditioning Systems
… disturbance in frequency domain for the current control design in the grid-tie inverter applications and to propose current control techniques in order to minimize its impact and maximize feasibility of the power conditioning system in distributed generations. Because the grid voltage is …
-
High-Frequency Transformer Design for Solid-State Transformers in Electric Power Distribution Systems
… Hz transformer in applications demanding high-power density. Moreover, due to the high penetration of distributed generation, DC grids, energy storage systems, and sensitive loads, SSTs have been considered as an enabling technology for envisioned future energy systems. These applications …
-
Applications of superconducting magnetic energy storage systems in power systems
… explores new applications/benefits of SMES in power systems. Three areas have been identified. • Using SMES in conjunction with PV systems.SMES because of their excellent dynamic response and PV being an intermittent source complement one another.A scheme for this hybrid system is developed and …
-
Modeling and Simulation of Parallel D-STATCOMs with Full-Wave Rectifiers
… on the nation’s electrical grid. Conventional power flow control techniques such as capacitor banks and tap-changing transformers are incapable of adequately handling the rapid fluctuations in power supply and demand that today’s grid experiences. Flexible AC Transmission System (FACTS) …
-
Utility Applications of Smart Online Energy Systems: A case for Investing in Online Power Electronics
The backbone of any power grid, the transmission and sub-transmission networks, should be flexible, robust, resilient and self-healing to cope with wide types of network adverse conditions and operations. Power electronic applications are making a major impact on the present and future state of …
-
6.78MHz Omnidirectional Wireless Power Transfer System for Portable Devices Application
Wireless power transfer (WPT) with loosely coupled coils is a promising solution to deliver power to a battery in a variety of applications. Due to its convenience, wireless power transfer technology has become popular in consumer electronics. Thus far, the majority of the coupled coils in these …
-
Evaluating the technical innovation landscape for wind energy's competitive future : a value creation -- value capture analysis
… in the wind energy sector of the electric power industry. Six technical innovations are considered for the analysis, including Grid-Scale Storage, On-Site Manufacturing Systems, Transmission Power Flow Control, Near-Term Forecasting, Long-Term Forecasting and Predictive Maintenance. Several …
-
DYNAMIC ENHANCEMENT OF THE FUTURE SASKPOWER INTERCONNECTED NORTH AND SOUTH SYSTEMS: THE HVDC INTERCONNECTION
SaskPower has two separate systems, namely the North and the South systems. The South system contains SaskPower major generation and system load. The North system load is located relatively far from its generation (200 to 300 km). The North system is considered, therefore, to be electrically weaker …
-
Design, Modeling and Analysis of an AC-AC Dual Active Bridge Converter
… to conventional iron-core transformers in the power electronic community. The power industry's increasing demands for smaller size, higher efficiency, and greater energy density have made the SST an attractive option. Among various power electronic converter topologies, the Dual Active Bridge …
-
Development of a System for Testing Grid-connected Doubly Fed Induction Generators with Implementation of a Three-level Neutral-Point-clamped Converter
… Furthermore amongst existing wind turbine power generation technologies, the doubly fed induction generator (DFIG) has been distinctively popular for its lower capital costs especially in higher power applications. In order to study the integration of this type of generator into the grid, a …
-
Power System Control with Distributed Flexible AC Transmission System Devices
… devices offer many potential benefits to power systems. This work examines the impact of installing D-FACTS devices by studying the sensitivities of power system quantities such as voltage magnitude, voltage angle, bus power injections, line power flows, and real power losses with respect …
-
Impact and Utilization of Emerging PHEV in Smart Power Systems
… two important issues for the secure operation of power systems. Electricity grid upgrades, and especially the construction of new transmission lines and loads cannot keep pace with the growing power plant capacity and energy demand for various reasons. The changing characteristics and new loads of …
-
2-D Coaxial Integration of Medium Voltage Power Electronics Enabled by Field-Driven Design
… adaptable, distributed, and efficient. Increased power demand from electrified transportation and multi-MW datacenters, in combination with higher generation volatility due to distributed energy resources continue to strain the electrical grid both domestically and abroad. Power electronics …
-
Design, Implementation, and Analysis for an Improved Multiple Inverter Microgrid System
… system and loads, a microgrid (MG) can offer a power system with increased reliability, flexibility, cost effectiveness, and energy efficient feature. Popular energy sources like photovoltaic modules (PV), wind turbines, and fuel cells require the power-electronic interface as the bridge to …
-
Bidirectional DC-DC Power Converter Design Optimization, Modeling and Control
In order to increase the power density, the discontinuous conducting mode (DCM) and small inductance is adopted for high power bidirectional dc-dc converter. The DCM related current ripple is minimized with multiphase interleaved operation. The turn-off loss caused by the DCM induced high peak …
-
Control of Power Flow in Transmission Lines using Distributed Series Reactors
Distributed Series Reactors (DSRs) can be used to control power flow to more fully utilize the capacity of a transmission network, delaying investment in new transmission lines. In this study the IEEE 39 bus standard test system is modified to a 3-phase, unbalanced model consisting of 230 kV, 345 …
-
Control Applications and Economic Evaluations of Distributed Series Reactors in Unbalanced Electrical Transmission Systems
An important issue in today's power system is the need to analyse and determine the adequacy of transmission capacity. There is a need for approaches to increase transmission system capacity without construction of new transmission facilities, all while assuring secure operation of the grid. New …
-
Development of a multi-port DC-DC converter for a magnetically-coupled residential micro-grid
… energy storage, and local loads with multiport power electronic converters capable of bidirectional power flow and intelligent algorithms for power converter and micro-grid controls. A topology of multi-port converter using a high frequency magnetic link is proposed for residential micro-grid …
Page 1 of 2