Results 251 to 260 of about 292,978 (328)

High Power Electronics and flexible AC Transmission System

IEEE Power Engineering Review, 1988
During the last decade, higher energy costs, the difficulty in building new power plants and improved converter technology provided an increased Market for HVDC transmission. However, HVDC, due to the high cost of converters, will play a limited role in the overall ac power system.
N. Hingorani
openaire   +2 more sources

Flexible AC Transmission System Controllers: An Evaluation

Materials Science Forum, 2010
Electricity market activities and a growing demand for electricity have led to heavily stressed power systems. This requires operation of the networks closer to their stability limits. Cost effective solutions are preferred over network extensions. The flexible alternating current transmission system (FACTS), a new technology based on power electronics,
Pavlos S. Georgilakis, Peter G. Vernados
openaire   +2 more sources

Evolutionary fuzzy control of flexible AC transmission system

IEE Proceedings - Generation, Transmission and Distribution, 2005
A 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
openaire   +2 more sources

Flexible AC Transmission Systems

2011
Mit der kommerziellen Verfugbarkeit leistungselektronischer Komponenten hoher Bemessungsleistung ist deren Anwendung in Anlagen fur die Hoch- und Hochstspannungsseite der elektrischen Energieubertragung in unterschiedlichen Systemausfuhrungen forciert worden. Im Zusammenhang damit entstand das Konzept des Flexible AC Transmission Systems (FACTS).
Valentin Crastan, Dirk Westermann
  +6 more sources

Optimal Reactive Power Dispatch Considering Flexible AC Transmission System Devices Using Biogeography-based Optimization

Electric Power Components and Systems, 2011
P. Roy, S. Ghoshal, S. S. Thakur
semanticscholar   +3 more sources

FLEXIBLE AC TRANSMISSION SYSTEMS (FACTS)

Electric Machines & Power Systems, 1997
ABSTRACT 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
openaire   +1 more source

Taking the experience from Flexible AC Transmission Systems to flexible AC distribution systems

2007 42nd International Universities Power Engineering Conference, 2007
FACTS (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., Myrzik, J.M.A., Kling, W.L.   +2 more
openaire   +1 more source

Simple topologies for AC-link flexible AC transmission systems

2009 IEEE Bucharest PowerTech, 2009
Vector 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, Juan M. Ramirez, Fang Z. Peng   +2 more
openaire   +1 more source

Flexible AC transmission systems simulation and control

3D Africon Conference. Africon '92 Proceedings (Cat. No.92CH3215), 2003
Concepts 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
openaire   +1 more source

Hierarchical intelligent control with flexible AC transmission systems application

Control Engineering Practice, 1993
Abstract 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, R.R. Mohler, W.J. Kolodziej   +2 more
openaire   +1 more source