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Genetic algorithms-based power flow control with unified power flow controller
3rd International Conference on Advances in Power System Control, Operation and Management (APSCOM 95), 1995This paper uses a genetic algorithm (GA) to solve optimal power flow control problems with a unified power flow controller (UPFC). UPFC is used as a continuous phase shifter to regulate both angle and magnitude of branch voltage. The GA, coupled with P-Q power flow, selects the best regulation to minimize the real power loss and keep the power flows in
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Power system damping using fuzzy controlled unified power flow controller
2001 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.01CH37194), 2002The paper presents a design of a UPFC damping controller using two fuzzy logic schemes one based on Mamdani inference engine using the center of gravity method to find the controller output, and the second based on Takagi-Sugeno engine computing the controller output as linear combination of the inputs.
K. Schoder, A. Hasanovic, A. Feliachi
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Unified power flow controller (UPFC) under nonlinear control
Proceedings of the Power Conversion Conference-Osaka 2002 (Cat. No.02TH8579), 2003The 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 structures for the unified power flow controller
IECON 2014 - 40th Annual Conference of the IEEE Industrial Electronics Society, 2014The basic principles of UPFC operation are discussed and the series inverter dynamics are explained. Two control strategies — the Cross-Coupling method and the Advanced Control method are discussed in detail and their bode plots are analyzed. The two control methods are implemented in PSCAD for the NYPA UPFC at Marcy substation.
Saman Babaei +2 more
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Designer of Unified Power Flow Controller
2011This paper introduced singular value decomposition(SVD) elementary theory, Proposed one kind of Unified Power Flow Controller(UPFC) based on SVD, reduces or eliminates active and tendency interaction between the idle current.With the MATLAB simulation of software, obtain the satisfactory results, thus proving the usefulness of this method.
Wen Jin Dai, Kai Wang
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Unified Power Flow Controllers for Security-Constrained Transmission Management
IEEE Transactions on Power Systems, 2004Although flexible ac transmission system (FACTS) devices and unified power flow controllers (UPFCs) have proven to be powerful tools for the exploitation of network capacities, their performances with regard to transient stability have not been deeply explored yet.
S. Bruno, M. La Scala
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Dynamic control of a unified power flow controller
PESC Record. 27th Annual IEEE Power Electronics Specialists Conference, 2002The performance of a unified power flow controller (UPFC) with four different controllers is evaluated through simulation and implementation in an experimental laboratory model. The controllers which were investigated are the PI controller, PI controller with decoupling, cross-coupling controller and robust H/spl infin/ controller. It is found that the
Q. Yu +3 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), 2002The 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 +3 more
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Finite Time Control of unified power flow controller for power flow reference tracking
2015 4th International Conference on Electrical Engineering (ICEE), 2015This article presents a Finite Time Controller (FTC) applied to a unified power flow controller (UPFC) to achieve rapid and finite time reference signal tracking of power flow in presence of plant uncertainties. Finite Time Control is a nonlinear control based on the Lyapunov's stability theory to cancel disturbances and overcome the drawback of ...
Amar Hamache +2 more
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Investigation of a unified power flow controller
IEE Proceedings - Generation, Transmission and Distribution, 1999Power flow in an AC transmission system depends on three basic parameters: transmission line impedance, voltage magnitude and phase angle. Maximum utilisation of the power system can be ensured by the control of these parameters in real-time. It is shown experimentally that a unified power flow controller (UPFC) can control each of the parameters ...
T. Makombe, N. Jenkins
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