Results 131 to 140 of about 433 (184)

Comparative of performance for UPFC with DPFC

2017 IEEE International Conference on Electrical, Instrumentation and Communication Engineering (ICEICE), 2017
UPFC and DPFC are two important devices for power quality improvement. These FACTs devices are generally used between sending end and receiving end. This paper deals with comparison of UPFC & DPFC systems operating at same load and same sending voltage. A basic two bus system with UPFC is modelled and simulated.
Akhib Khan Bahamani, G.M Sreerama Reddy, V. Ganesh   +2 more
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Simulation of UPFC

2001 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.01CH37194), 2002
This presentation describes the modeling techniques for a voltage source converter (VSC)-based flexible alternating current transmission systems (FACTS) controller, such as a unified power flow controller (UPFC). The model is implemented in an Electro-Magnetic Transients Program (EMTP) simulation package and the results are compared with the ...
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The Application of the UPFC in Power System

Applied Mechanics and Materials, 2013
UPFC is one of the flexible ac transmission system (FACTS) compensation devices, it has a comprehensive compensation function, UPFC has the characteristic functions as follows: fast anddynamical adjusting the parameters of electricity transmission system, such as voltage, impedance, phase angle, active power and reactive power, expanding thecapacity of
Xin Hua Xiong, Zun Nan Min, Ting Jian Zhong   +2 more
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Transient stability enhancement with UPFC

IET-UK International Conference on Information and Communication Technology in Electrical Sciences (ICTES 2007), 2007
In this paper, the most versatile FACTS device UPFC is modelled and implemented in the SMIB (single machine infinite bus) system and standard 9 - bus system (Anderson and Fouad, 1977). The performances of these systems are simulated by using MATLAB. It has been found that the critical clearing time of the system has increased after including the UPFC ...
N.M.J. Swaroopan, P. Somasundaram
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Dynamic Modeling and Simulation of UPFC

2011
Unified Power Flow Controller (UPFC) combines function of voltage control, power flow control and oscillation damping. Before installation to a system, analysis for interactions between UPFC and system are needed. Building up steady, transient and dynamic models by present software to realize accurate simulations of UPFC under different system ...
Jieying Song, Fei Zhou, Hailong Bao, Jun Liu   +3 more
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Fuzzy OPF incorporating UPFC

IEE Proceedings - Generation, Transmission and Distribution, 2004
A new optimal reactive power flow (ORPF) method is proposed which considers the inclusion of unified power flow controllers (UPFC). The modelling and inclusion of UPFC in the solution of power flow equations is presented. The ORPF problem is formulated as a fuzzy optimisation problem considering the objectives of minimising system transmission loss and
Venkatesh, B., George, M.K., Gooi, H.B.
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A UPFC based on matrix converter

2010 1st Power Electronic & Drive Systems & Technologies Conference (PEDSTC), 2010
The main concept of unified power flow controller (UPFC) is based on back to back connection of two inverters with a common capacitor dc link. This capacitor brings about several disadvantages such as affecting the reliability of UPFC. This paper proposes a new topology for UPFC based on matrix converter.
A. R. Marami Iranaq, M. Tarafdar Haque, E. Babaei   +2 more
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Study on Modeling and Simulation of UPFC

2011
As the most representative and multiplex device of Flexible A.C. TransmissionSystem (FACTS), the Unified Power Flow Controller (UPFC) is one of the researchfocuses in FACTS recently. UPFC has the characteristic functions as follows: fast anddynamical adjusting the parameters of electricity transmission system, such asvoltage, impedance, phase angle ...
Tingjian Zhong, Zunnan Min, null Raobin, null Huangwei   +3 more
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Passivity-based control of UPFCs

2009 International Conference on Power Electronics and Drive Systems (PEDS), 2009
We explore the passivity-based control (PBC) for robust UPFC controller design. Under this framework, the dynamical model of UPFC will be represented by a Euler-Lagrangian (EL) system with a set of EL parameters. The energy-dissipative properties of system model are fully retained.
Chia-Chi Chu, Hung-Chi Tsai
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UPFC Modeling in the Harmonic Domain

IEEE Transactions on Power Delivery, 2006
This paper outlines the extension of harmonic domain modeling to flexible ac transmission system (FACTS) devices which contain series voltage injection elements. The proposed iterative technique is capable of modeling generic combinations of series and shunt converters; representing these elements as harmonic current and voltage sources, respectively ...
C. Collins, N. Watson, A. Wood
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