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Showing 1 to 12 of 12 for “"Unified Power Flow Controller"”.
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Laboratory implementation of unified power flow controller hardware-in-loop simulation
<p>"One of the most promising network controllers for the bulk power system is the family of power electronics-based controllers, known as "flexible AC transmission system" (FACTS) devices. FACTS devices work by modifying power flow in individual lines of the power grid, maintaining voltage …
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Decentralized control and placement of multiple unified power flow controllers
… System (FACTS) devices, the optimal placement of Unified Power Flow Controller (UPFC) in power networks and the decentralized control of UPFCs for damping interarea oscillations of power networks"--Abstract, page iv.
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Nonlinear optimization approach for UPFC power flow control and voltage security: Sufficient system constraints for optimality
… 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 more UPFCs by …
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Matrix converter application to FACTS and embedded generation
Power electronics is the key technology for connecting flexible ac transmission system devices and renewable power generation to the ac grid. Among the ac to ac converters, the matrix converter represents a promising alternative power electronics technology to back to back converters. It does not …
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Optimal Upfc Control And Operations For Power Systems
… optimal control strategies are developed for Unified Power Flow Controller (UPFC) following the clearance of fault conditions. UPFC is one of the most versatile Flexible AC Transmission devices (FACTs) that have been implemented thus far. The optimal control scheme is composed of two parts. …
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Hierarchical Fuzzy Control of the UPFC and SVC located in AEP's Inez Area
… close to its stability limits, American Electric Power (AEP) undertook two major developments, one being the installation of a Static Var Compensator (SVC) in November, 1980 and the other one being the installation of the world's first Unified Power Flow Controller (UPFC) in 1998. The controllers …
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Phase domain modelling and simulation of large-scale power systems with VSC-based FACTS equipment
… for planning and operation of multiphase power systems are based upon the assumption that the network operates under perfectly balanced conditions. The advantage of this assumption from the modelling view point is that only one phase of the three phase system needs to be considered for …
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Investigation of the application of UPFC controllers for weak bus systems subjected to fault conditions. An investigation of the behaviour of a UPFC controller: the voltage stability and power transfer capability of the network and the effect of the position of unsymmetrical fault conditions.
In order to identify the weakest bus in a power system so that the Unified Power Flow Controller could be connected, an investigation of static and dynamic voltage stability is presented. Two stability indices, static and dynamic, have been proposed in the thesis. Multi-Input Multi-Output (MIMO) …
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Enhancing electricity auction mechanism with FACTS devices
… electrical industry. In the deregulated electric power market, auction is demonstrated to be an effective way to achieve the Pareto optimality. The auction scheme in this work is double-sided SPCA (single period commodity auction). The auction problem is formulated in a linear form and can be …
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Fault Identification of UPFC-Compensated Transmission Lines in Complex Microgrids Using an Intelligent Relaying Scheme Based on Discrete Wavelet Transform and ANN Classifier
Transformation of traditional power infrastructures to modern inter-connected electrical grids has resulted in the emergence of microgrids as modernization of the existing aging transmission and distribution systems. Microgrids allow integration of distributed energy resources (DER) such as wind …
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Inter-area oscillation damping in large scale power systems with unified power flow controllers
"Power system oscillations occur in power networks as a result of contingencies such as faults or sudden changes in load or generation. They are detrimental to the operation of the system since they affect system stability and the optimal power flow through it. These oscillations do not usually …
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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 …