Results 281 to 290 of about 222,010 (332)
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FLEXIBLE AC TRANSMISSION SYSTEMS (FACTS)
Electric Machines & Power Systems, 1997ABSTRACT The paper reviews literature which addresses the application of Flexible AC Transmission System (FACTS) concepts to the improvement of Power System utilisation and performance. It summarises literature on using high speed thyristor based control of HVAC power system elements to enhance the power carrying capacity of existing transmission ...
T. J. HAMMONS, S. K. LIM
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Taking the experience from Flexible AC Transmission Systems to flexible AC distribution systems
2007 42nd International Universities Power Engineering Conference, 2007FACTS (flexible AC transmission systems) devices are today a well known technology and the existing installations give some good examples of the state of the art of such power electronics based devices. It will be expected that such technology could also be used to solve problems in the distribution system caused by a high penetration level of ...
Kechroud, A. +2 more
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Simple topologies for AC-link flexible AC transmission systems
2009 IEEE Bucharest PowerTech, 2009Vector Switching Converter VeSC has been recently introduced as an alternative for controlling power flow in power system's complex interconnections by direct AC-AC conversion, and novel FACTS devices have been recently introduced based on the VeSC, such as the Xi (Ξ) and Gamma (Γ) controllers.
Julio C. Rosas-Caro +2 more
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Flexible AC Transmission System (FACTS)
1996Transmission and distribution systems are at the beginning an era of significant change — an era that is technology-driven by microelectronics (computers and microprocessors), communications, and power electronics. The combined impact of these technologies makes the era unique and important for both transmission and distribution systems, by making them
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Flexible AC transmission systems simulation and control
3D Africon Conference. Africon '92 Proceedings (Cat. No.92CH3215), 2003Concepts relating to flexible AC transmission systems (FACTS) are gaining popularity for enhancing the power transfer limits as well as the stability characteristics of power systems. The authors present an overview of FACTS devices and associated nonlinear, modern control strategies.
R. Spee, W. Zhu
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Hierarchical intelligent control with flexible AC transmission systems application
Control Engineering Practice, 1993Abstract A novel hierarchical intelligent controller configuration is proposed using an artificial neural network as a control-mode classifier in the supervisory level and a set of pre-designed controllers in the lower level. Controller outputs are modified nonlinearly by the classifying signals in a structure resembling one artificial neuron with ...
R.R. Zakrzewski +2 more
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DC and Flexible AC Transmission Systems
2014Under certain circumstances, it is advantageous to transmit power over a DC transmission line instead of an AC transmission line. DC transmission requires conversion from AC to DC at one end of the transmission line and conversion from DC to AC at the other end of the transmission line.
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Evolutionary fuzzy control of flexible AC transmission system
IEE Proceedings - Generation, Transmission and Distribution, 2005A fuzzy-controller design by the hybrid of genetic algorithm and particle-swarm optimisation (F-HGAPSO) is employed for a thyristor-controlled series capacitor (TCSC) to improve the transient stability of flexible AC transmission systems (FACTS). According to the variation of rotation speed, a fuzzy controller decides an approximate series capacitance ...
Chun-Feng Lu, Chia-Feng Juang
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Flexible AC Transmission Systems (FACTS)
2016Flexible AC Transmission Systems (FACTS): Newton Power-Flow Modeling of Voltage-Sourced Converter-Based Controllers introduces different voltage-sourced converter (VSC)-based FACTS controllers and VSC-based high-voltage direct current (VSC-HVDC) systems and their working principles, explaining how FACTS controllers exchange real and reactive power with
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Vacuum Circuit Breakers in Flexible AC Transmission Systems
IEEE Transactions on Power Delivery, 2012This paper shows two applications for using vacuum circuit breakers (VCBs) in flexible ac transmission systems in the high-voltage (HV) power grid. This is first a mechanically switched reactor, which is series connected to a thyristor-controlled series compensator in order to enhance the inductive working range.
Wenzel, T., Leibfried, T.
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