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Showing 1 to 13 of 13 for “"UPFC"”.
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Optimal Upfc Control And Operations For Power Systems
… 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. The first is an optimal …
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Hierarchical Fuzzy Control of the UPFC and SVC located in AEP's Inez Area
… the world's first Unified Power Flow Controller (UPFC) in 1998. The controllers in the system include the Automatic Voltage Regulators (AVRs) of the generators, the controllers of the SVC, and UPFC. To coordinate the control actions of these controllers and prevent voltage instability resulting …
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Nonlinear optimization approach for UPFC power flow control and voltage security: Sufficient system constraints for optimality
… 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 considering all the possible …
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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.
… need to strengthen existing power systems. The UPFC has been identified in literature as the most comprehensive and complex FACTs equipment that has emerged for the control and optimization of power flow in AC transmission systems. Significant research has been done on the UPFC. However, the …
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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
… (FACTS) such as Unified Power Flow Controller (UPFC). FACTS increase power flow capacity of transmission lines while DERs supply additional electric energy. In these systems, current direction, as well as power injections, may change at any time; hence, the protection task is complicated during …
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Inter-area oscillation damping in large scale power systems with unified power flow controllers
… oscillations by Unified Power Flow Controllers (UPFC). UPFC is a series-shunt FACTS device which is used for purposes such as the control of active and reactive power flow through the corridors of the system. However, using supplementary controls and proper coordination of UPFCs, they can be used …
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Decentralized control and placement of multiple unified power flow controllers
… 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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Enhancing electricity auction mechanism with FACTS devices
… This work constructs linearized models for UPFC (unified power flow controller) and two-terminal HVDC link. This model can be easily incorporated into the SPCA formulation without losing much accuracy. The control parameters of FACTS devices and HVDC link are introduced to the formulation as …
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Modeling of voltage source converter based HVDC transmission system in EMTP-RV
… System (FACTS) devices such as STATCOM, SSSC, UPFC and Wind generators and active filters. The VSC based HVDC system is a feasible option for bulk power transmission over long or short distances and the grid integration of renewable energy sources in existing transmission and distribution …
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Phase domain modelling and simulation of large-scale power systems with VSC-based FACTS equipment
… (SSSC), the unified power flow controller (UPFC) and the high-voltage direct current (HVDC). These power electronics-based controllers have the voltage source converter as their main constituent. The combined solution of both steady state and dynamic power flow equations pertaining to the …
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Grid Strength Assessment Trough Q-V Modal Analysis and Maximum Loadability of a Wind-Dominated Power System Using P-Q Regions
… utilities are, STATCOM, SVC, SSSC, TCSC, and UPFC. In this work, attention is given to the amelioration of transient stability in wind-dominated power systems via STATCOM and SSSC. Furthermore, a systematic approach to locate large wind power plants to an existing transmission grid is …
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Impact and Utilization of Emerging PHEV in Smart Power Systems
… solution for designing a virtual FACTS devices (UPFC, UPQC, DVR) using PHEV charging station. Finally, a benchmark distribution network has been used to verify the performance of the proposed filter and FACTs devices in grid.
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Grid Power Quality with FACTS Devices and Renewable Energy Sources Using Deep Learning Algorithms
… in the literature for similar FACTS devices to UPFC or IPFC. For harmonic mitigations in power networks with PV energy sources and offshore wind generation, two novel filters called LCL-PST (phase shifting transformer) and RLC-PST have been introduced where R, L, and C stand for a resistor, …