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Flexible AC transmission system

About: Flexible AC transmission system is a(n) research topic. Over the lifetime, 2141 publication(s) have been published within this topic receiving 34398 citation(s). The topic is also known as: FACTS. more


Journal ArticleDOI: 10.1109/TPEL.2008.2008441
Abstract: The ever increasing progress of high-voltage high-power fully controlled semiconductor technology continues to have a significant impact on the development of advanced power electronic apparatus used to support optimized operations and efficient management of electrical grids, which, in many cases, are fully or partially deregulated networks. Developments advance both the HVDC power transmission and the flexible ac transmission system technologies. In this paper, an overview of the recent advances in the area of voltage-source converter (VSC) HVdc technology is provided. Selected key multilevel converter topologies are presented. Control and modeling methods are discussed. A list of VSC-based HVdc installations worldwide is included. It is confirmed that the continuous development of power electronics presents cost-effective opportunities for the utilities to exploit, and HVdc remains a key technology. In particular, VSC-HVdc can address not only conventional network issues such as bulk power transmission, asynchronous network interconnections, back-to-back ac system linking, and voltage/stability support to mention a few, but also niche markets such as the integration of large-scale renewable energy sources with the grid and most recently large onshore/offshore wind farms. more

Topics: Electric power system (61%), Flexible AC transmission system (60%), Power transmission (56%) more

1,812 Citations

Journal ArticleDOI: 10.1109/TSG.2011.2116162
Xiong Liu1, Peng Wang1, Poh Chiang Loh1Institutions (1)
Abstract: This paper proposes a hybrid ac/dc micro grid to reduce the processes of multiple dc-ac-dc or ac-dc-ac conversions in an individual ac or dc grid. The hybrid grid consists of both ac and dc networks connected together by multi-bidirectional converters. AC sources and loads are connected to the ac network whereas dc sources and loads are tied to the dc network. Energy storage systems can be connected to dc or ac links. The proposed hybrid grid can operate in a grid-tied or autonomous mode. The coordination control algorithms are proposed for smooth power transfer between ac and dc links and for stable system operation under various generation and load conditions. Uncertainty and intermittent characteristics of wind speed, solar irradiation level, ambient temperature, and load are also considered in system control and operation. A small hybrid grid has been modeled and simulated using the Simulink in the MATLAB. The simulation results show that the system can maintain stable operation under the proposed coordination control schemes when the grid is switched from one operating condition to another. more

Topics: AC/AC converter (67%), Flexible AC transmission system (62%), Microgrid (57%) more

952 Citations

Journal ArticleDOI: 10.1109/6.206621
N.G. Hingorani1Institutions (1)
01 Apr 1993-IEEE Spectrum
Abstract: The operation and components of the flexible AC transmission system (FACTS) are described. FACTS, designed to overcome the limitations of the present mechanically controlled AC power transmission systems, uses reliable, high-speed power electronic controllers. Its benefits are examined. These include greater control of power, so that it flows on the prescribed transmission routes; secure loading of transmission lines to levels nearer their thermal limits; greater ability to transfer power between controlled areas, so that the generation reserve margin may be reduced; prevention of cascading outages by limiting the effects of faults and equipment failure; and damping of power system oscillations. > more

Topics: Flexible AC transmission system (72%), Electric power system (61%), Power transmission (61%) more

631 Citations

Journal ArticleDOI: 10.1080/07313569708955725
T.J. Hammons1, S. K. Lim1Institutions (1)
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 circuits without compromising reliability. It describes a study system representative of existing power systems that has been developed to evaluate the economic and technical issues of loading transmission lines to their thermal limits. Considered are two scenarios, a multi-line corridor and a long radial interconnection, where the issues addressed are transient and dynamic stability, power flow control, reactive support and voltage stability. A benchmark system is developed to validate performance of die more simple devices. It is concluded that FACTS devices have the potential to significantly increase system stability margins thereby increasing loading capabil... more

544 Citations

No. of papers in the topic in previous years

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Topic's top 5 most impactful authors

Ahad Kazemi

44 papers, 252 citations

H. Shateri

36 papers, 165 citations

Shahram Jamali

34 papers, 139 citations

Ismail Musirin

21 papers, 171 citations

G. V. Nagesh Kumar

9 papers, 78 citations

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