Results 161 to 170 of about 2,573 (226)

Optimal Placement and Sizing of Unified Power Flow Controller (UPFC) for Voltage Stability Enhancement in Transmission Line Network

Belay Tessema
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Investigating the Capability of Power Flow Regulation by Unified Power Flow Controller (UPFC) in a Single-Machine-Infinite Bus System

, 2007
Mark Ndubuka Nwohu
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Investigation of the 3-Level Unified Power Flow Controller (UPFC)

, 2001
A. Sapin, J.-J. Simond, P. Allenbach
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A new approach for the dynamic control of unified power flow controller (UPFC)

2001 Power Engineering Society Summer Meeting. Conference Proceedings (Cat. No.01CH37262), 2001
This paper presents a new approach for the dynamic control of FACTS apparatus, such as the UPFC and the STATCOM. With the new control strategy, the capabilities of the UPFC can be exploited not only for steady state power flow control but also to improve damping and transient stability assuring a good behavior during contingencies and the protection of
K. Sedraoui, K. Al-haddad, G. Olivier
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Nonlinear power system damping control strategies for the unified power flow controller (UPFC)

PowerCon 2000. 2000 International Conference on Power System Technology. Proceedings (Cat. No.00EX409), 2002
In this paper, a nonlinear UPFC damping control strategy based on a combination of PI and fuzzy controllers is proposed to damp low frequency electromechanical power oscillations. The proposed control scheme coordinates the unique power flow control features in different control modes of a UPFC to allow the best damping effects to be achieved.
T.T. Ma, K.L. Lo
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Unified power flow controller (UPFC) under nonlinear control

Proceedings of the Power Conversion Conference-Osaka 2002 (Cat. No.02TH8579), 2003
The equations of the PWM voltage-source converter (PWM-VSC) are inherently nonlinear. This paper applies the nonlinear control, associated with A. Isidori, to the unified power flow controller (UPFC). Since the UPFC comprises two PWM-VSCs, this paper is one step further in complexity than the previous application of nonlinear control to the static ...
null Bin Lu, null Boon Teck Ooi
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Control Strategy and Dynamic Characteristics of Unified Power Flow Controller (UPFC)

International Journal of Computer & Organization Trends, 2014
Mr.B. Gopinath, Ms.M. Anusuya, Dr.S. Sureshkumar   +2 more
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Versatile control strategy of the unified power flow controller (UPFC)

2000 Canadian Conference on Electrical and Computer Engineering. Conference Proceedings. Navigating to a New Era (Cat. No.00TH8492), 2002
The unified power flow controller (UPFC) is a third generation flexible AC transmission system (FACTS) that uses solid state electronics to control the flow of power through lines in a faster and more economical fashion. In this paper, we propose a versatile control strategy of the UPFC that joins shunt active filtering and system balancing ...
K. Sedraoui, K. Al-Haddad, A. Chandra, G. Olivier   +3 more
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Power flow control and loss minimization with unified power flow controller (UPFC)

Canadian Conference on Electrical and Computer Engineering 2004 (IEEE Cat. No.04CH37513), 2004
In this paper, the UPFC injection model is used to investigate its effect on load flow and loss reduction in power systems. In this study, the Newton-Raphson algorithm is modified to consider the benefits of having a UPFC in the power system. Simulations have been implemented in MATLAB and the IEEE 14-bus system has been used as a case study ...
A. Farhangfar, S.J. Sajjadi, S. Afsharnia   +2 more
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